HP HPE FlexNetwork MSR Router Series User manual

HPE FlexNetwork MSR Router Series
Comware 7 MPLS Configuration Guide
Part number: 5998-8833
Software version: CMW710-R0305
Document version: 6PW106-20160308

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Contents
Configuring basic MPLS ·················································································1
Overview····························································································································································1
Basic concepts···········································································································································1
MPLS network architecture························································································································2
LSP establishment·····································································································································3
MPLS forwarding········································································································································4
PHP····························································································································································4
Protocols and standards ····························································································································5
Compatibility information····································································································································5
MPLS configuration task list·······························································································································5
Enabling MPLS ··················································································································································6
Setting MPLS MTU ············································································································································6
Specifying the label type advertised by the egress····························································································7
Configuring TTL propagation ·····························································································································8
Enabling sending of MPLS TTL-expired messages···························································································9
Enabling MPLS forwarding statistics··················································································································9
Enabling FTN forwarding statistics·············································································································9
Enabling MPLS label forwarding statistics for LSPs ················································································10
Enabling MPLS label forwarding statistics for a VPN instance································································10
Enabling split horizon for MPLS forwarding·····································································································10
Enabling SNMP notifications for MPLS············································································································11
Displaying and maintaining MPLS ···················································································································11
Configuring a static LSP ···············································································13
Overview··························································································································································13
Configuration prerequisites······························································································································13
Configuration procedure ··································································································································13
Displaying static LSPs ·····································································································································14
Static LSP configuration example····················································································································14
Configuring LDP····························································································17
Overview··························································································································································17
Terminology ·············································································································································17
LDP messages·········································································································································17
LDP operation··········································································································································18
Label distribution and control···················································································································19
LDP GR····················································································································································21
LDP NSR··················································································································································22
LDP-IGP synchronization·························································································································23
LDP FRR··················································································································································23
LDP over MPLS TE··································································································································24
Protocols··················································································································································25
Compatibility information··································································································································25
LDP configuration task list ·······························································································································25
Enabling LDP···················································································································································26
Enabling LDP globally······························································································································26
Enabling LDP on an interface ··················································································································26
Configuring Hello parameters ··························································································································26
Configuring LDP session parameters ··············································································································27
Configuring LDP backoff··································································································································29
Configuring LDP MD5 authentication···············································································································29
Configuring LDP to redistribute BGP unicast routes························································································30
Configuring an LSP generation policy··············································································································30
Configuring the LDP label distribution control mode························································································31
Configuring a label advertisement policy ·········································································································31
Configuring a label acceptance policy ·············································································································32
Configuring LDP loop detection ·······················································································································33

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Configuring LDP session protection·················································································································34
Configuring LDP GR ········································································································································35
Configuring LDP NSR······································································································································35
Configuring LDP-IGP synchronization ·············································································································35
Configuring LDP-OSPF synchronization··································································································36
Configuring LDP-ISIS synchronization·····································································································37
Configuring LDP FRR ······································································································································37
Setting a DSCP value for outgoing LDP packets·····························································································37
Resetting LDP sessions···································································································································38
Enabling SNMP notifications for LDP ··············································································································38
Displaying and maintaining LDP······················································································································38
IPv4 LDP configuration examples····················································································································39
LDP LSP configuration example··············································································································39
Label acceptance control configuration example·····················································································43
Label advertisement control configuration example·················································································47
LDP FRR configuration example··············································································································52
IPv6 LDP configuration examples····················································································································55
IPv6 LDP LSP configuration example······································································································55
IPv6 label acceptance control configuration example··············································································61
IPv6 label advertisement control configuration example··········································································65
Configuring MPLS TE···················································································71
Overview··························································································································································71
TE and MPLS TE·····································································································································71
MPLS TE basic concepts·························································································································71
Static CRLSP establishment····················································································································71
Dynamic CRLSP establishment···············································································································71
CRLSP establishment using PCE path calculation··················································································73
Traffic forwarding ·····································································································································74
Make-before-break···································································································································75
Route pinning···········································································································································76
Tunnel reoptimization·······························································································································76
Automatic bandwidth adjustment·············································································································76
CRLSP backup·········································································································································77
FRR··························································································································································77
DiffServ-aware TE····································································································································78
Bidirectional MPLS TE tunnel ··················································································································80
Protocols and standards ··························································································································80
MPLS TE configuration task list·······················································································································81
Enabling MPLS TE···········································································································································82
Configuring a tunnel interface··························································································································83
Configuring DS-TE···········································································································································83
Configuring an MPLS TE tunnel to use a static CRLSP··················································································84
Configuring an MPLS TE tunnel to use a dynamic CRLSP·············································································85
Configuration task list·······························································································································85
Configuring MPLS TE attributes for a link································································································85
Advertising link TE attributes by using IGP TE extension········································································86
Configuring MPLS TE tunnel constraints·································································································87
Establishing an MPLS TE tunnel by using RSVP-TE···············································································89
Controlling CRLSP path selection············································································································89
Controlling MPLS TE tunnel setup···········································································································91
Configuring an MPLS TE tunnel to use a CRLSP calculated by PCEs ···························································93
Configuring a PCE ···································································································································93
Discovering PCEs····································································································································94
Establishing a CRLSP by using the path calculated by PCEs·································································94
Establishing a backup CRLSP by using the path calculated by PCEs·····················································94
Configuring PCEP session parameters····································································································95
Configuring load sharing for an MPLS TE tunnel·····························································································95
Configuring traffic forwarding···························································································································96
Configuring static routing to direct traffic to an MPLS TE tunnel or tunnel bundle···································96
Configuring PBR to direct traffic to an MPLS TE tunnel or tunnel bundle················································97
Configuring automatic route advertisement to direct traffic to an MPLS TE tunnel or tunnel bundle·······97

iii
Configuring a bidirectional MPLS TE tunnel ····································································································98
Configuring CRLSP backup·····························································································································99
Configuring MPLS TE FRR····························································································································100
Enabling FRR·········································································································································100
Configuring a bypass tunnel on the PLR································································································100
Configuring node fault detection ············································································································104
Configuring the optimal bypass tunnel selection interval·······································································105
Enabling SNMP notifications for MPLS TE····································································································105
Displaying and maintaining MPLS TE············································································································105
MPLS TE configuration examples··················································································································106
Establishing an MPLS TE tunnel over a static CRLSP··········································································106
Establishing an MPLS TE tunnel with RSVP-TE····················································································111
Establishing an inter-AS MPLS TE tunnel with RSVP-TE······································································117
Establishing an inter-area MPLS TE tunnel over a CRLSP calculated by PCEs···································124
Bidirectional MPLS TE tunnel configuration example············································································128
CRLSP backup configuration example ··································································································134
Manual bypass tunnel for FRR configuration example ··········································································138
Auto FRR configuration example···········································································································144
IETF DS-TE configuration example ·······································································································150
Troubleshooting MPLS TE·····························································································································157
No TE LSA generated····························································································································157
Configuring a static CRLSP········································································158
Overview························································································································································158
Configuration procedure ································································································································158
Displaying static CRLSPs ······························································································································159
Static CRLSP configuration example·············································································································159
Configuring RSVP·······················································································165
Overview························································································································································165
RSVP messages····································································································································165
CRLSP setup procedure························································································································166
RSVP refresh mechanism······················································································································166
RSVP authentication······························································································································167
RSVP GR···············································································································································167
Protocols and standards ························································································································168
RSVP configuration task list···························································································································168
Enabling RSVP··············································································································································168
Configuring RSVP refresh······························································································································168
Configuring RSVP Srefresh and reliable RSVP message delivery································································169
Configuring RSVP hello extension·················································································································169
Configuring RSVP authentication ··················································································································170
Setting a DSCP value for outgoing RSVP packets························································································171
Configuring RSVP GR ···································································································································172
Enabling BFD for RSVP·································································································································172
Displaying and maintaining RSVP ·················································································································172
RSVP configuration examples ·······················································································································173
Establishing an MPLS TE tunnel with RSVP-TE····················································································173
RSVP GR configuration example···········································································································179
Configuring tunnel policies··········································································182
Overview························································································································································182
Configuring a tunnel policy·····························································································································182
Configuration guidelines·························································································································182
Configuration procedure·························································································································183
Displaying tunnel information·························································································································184
Tunnel policy configuration examples············································································································184
Preferred tunnel configuration example·································································································184
Exclusive tunnel configuration example·································································································184
Tunnel selection order configuration example ·······················································································185
Preferred tunnel and tunnel selection order configuration example·······················································186

iv
Configuring MPLS L3VPN ··········································································188
Overview························································································································································188
Basic MPLS L3VPN architecture ···········································································································188
MPLS L3VPN concepts··························································································································188
MPLS L3VPN route advertisement········································································································190
MPLS L3VPN packet forwarding············································································································191
MPLS L3VPN networking schemes·······································································································192
Inter-AS VPN··········································································································································194
Carrier's carrier ······································································································································198
Nested VPN ···········································································································································200
Multirole host··········································································································································201
HoVPN···················································································································································202
OSPF VPN extension·····························································································································204
BGP AS number substitution and SoO attribute····················································································206
MPLS L3VPN FRR·································································································································207
Multi-VPN instance CE···························································································································209
Protocols and standards ························································································································210
MPLS L3VPN configuration task list ··············································································································211
Configuring basic MPLS L3VPN····················································································································211
Configuration prerequisites····················································································································211
Configuring VPN instances····················································································································211
Configuring routing between a PE and a CE ·························································································213
Configuring routing between PEs···········································································································218
Configuring BGP VPNv4 route control···································································································219
Configuring inter-AS VPN ······························································································································220
Configuring inter-AS option A·················································································································220
Configuring inter-AS option B·················································································································221
Configuring inter-AS option C ················································································································222
Configuring nested VPN ································································································································224
Configuring multirole host ······························································································································225
Configuring and applying PBR···············································································································226
Configuring a static route·······················································································································226
Configuring HoVPN········································································································································226
Configuring an OSPF sham link·····················································································································227
Configuring a loopback interface············································································································228
Redistributing the loopback interface address·······················································································228
Creating a sham link ······························································································································228
Configuring routing on an MCE······················································································································229
Configuring routing between an MCE and a VPN site···········································································229
Configuring routing between an MCE and a PE ····················································································234
Specifying the VPN label processing mode on the egress PE ······································································237
Configuring BGP AS number substitution and SoO attribute·········································································238
Configuring MPLS L3VPN FRR·····················································································································238
Enabling SNMP notifications for MPLS L3VPN ·····························································································240
Displaying and maintaining MPLS L3VPN·····································································································240
MPLS L3VPN configuration examples···········································································································242
Configuring basic MPLS L3VPN············································································································242
Configuring MPLS L3VPN over a GRE tunnel·······················································································247
Configuring a hub-spoke network ··········································································································251
Configuring MPLS L3VPN inter-AS option A ·························································································258
Configuring MPLS L3VPN inter-AS option B ·························································································262
Configuring MPLS L3VPN inter-AS option C·························································································267
Configuring MPLS L3VPN carrier's carrier in the same AS ···································································274
Configuring MPLS L3VPN carrier's carrier in different ASs ···································································282
Configuring nested VPN·························································································································289
Configuring multirole host ······················································································································298
Configuring HoVPN································································································································300
Configuring an OSPF sham link·············································································································307
Configuring MCE····································································································································311
Configuring BGP AS number substitution······························································································316
Configuring BGP AS number substitution and SoO attribute·································································320

v
Configuring MPLS L3VPN FRR through VPNv4 route backup for a VPNv4 route ································323
Configuring MPLS L3VPN FRR through VPNv4 route backup for an IPv4 route ··································325
Configuring MPLS L3VPN FRR through IPv4 route backup for a VPNv4 route ····································327
Configuring IPv6 MPLS L3VPN ··································································330
Overview························································································································································330
IPv6 MPLS L3VPN packet forwarding ···································································································330
IPv6 MPLS L3VPN routing information advertisement ··········································································331
IPv6 MPLS L3VPN network schemes and functions ·············································································331
Protocols and standards ························································································································332
IPv6 MPLS L3VPN configuration task list······································································································332
Configuring basic IPv6 MPLS L3VPN············································································································332
Configuring VPN instances····················································································································332
Configuring routing between a PE and a CE ·························································································335
Configuring routing between PEs···········································································································340
Configuring BGP VPNv6 route control···································································································341
Configuring inter-AS IPv6 VPN······················································································································342
Configuring inter-AS IPv6 VPN option A································································································343
Configuring inter-AS IPv6 VPN option C································································································343
Configuring multirole host ······························································································································344
Configuring and applying IPv6 PBR·······································································································344
Configuring an IPv6 static route·············································································································345
Configuring an OSPFv3 sham link·················································································································345
Configuring a loopback interface············································································································345
Redistributing the loopback interface address·······················································································345
Creating a sham link ······························································································································346
Configuring routing on an MCE······················································································································346
Configuring routing between an MCE and a VPN site···········································································346
Configuring routing between an MCE and a PE ····················································································351
Configuring BGP AS number substitution and SoO attribute·········································································355
Displaying and maintaining IPv6 MPLS L3VPN·····························································································355
IPv6 MPLS L3VPN configuration examples···································································································356
Configuring IPv6 MPLS L3VPNs············································································································356
Configuring an IPv6 MPLS L3VPN over a GRE tunnel··········································································363
Configuring IPv6 MPLS L3VPN inter-AS option A·················································································366
Configuring IPv6 MPLS L3VPN inter-AS option C·················································································371
Configuring IPv6 MPLS L3VPN carrier's carrier in the same AS···························································377
Configuring multirole host ······················································································································385
Configuring an OSPFv3 sham link·········································································································387
Configuring IPv6 MCE····························································································································391
Configuring BGP AS number substitution······························································································396
Configuring BGP AS number substitution and SoO attribute·································································401
Configuring MPLS L2VPN ··········································································404
Overview························································································································································404
Basic concepts of MPLS L2VPN············································································································404
MPLS L2VPN network models···············································································································405
Remote connection establishment·········································································································406
Local connection establishment·············································································································407
PW types················································································································································407
Control word···········································································································································409
MPLS L2VPN interworking·····················································································································409
PW redundancy······································································································································410
Multi-segment PW··································································································································410
VCCV·····················································································································································412
Compatibility information································································································································412
MPLS L2VPN configuration task list ··············································································································412
Enabling L2VPN·············································································································································413
Configuring an AC··········································································································································413
Configuring the interface with Ethernet or VLAN encapsulation····························································414
Configuring the interface with PPP encapsulation·················································································414
Configuring the interface with HDLC encapsulation···············································································414

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Configuring a cross-connect ··························································································································415
Configuring a PW···········································································································································415
Configuring a PW class··························································································································415
Configuring a static PW··························································································································415
Configuring an LDP PW·························································································································416
Configuring a BGP PW ··························································································································416
Configuring a remote CCC connection ··································································································418
Binding an AC to a cross-connect··················································································································419
Configuring PW redundancy··························································································································419
Configuring static PW redundancy·········································································································420
Configuring LDP PW redundancy··········································································································420
Configuring interworking for a cross-connect·································································································421
Enabling SNMP notifications for L2VPN PW ·································································································422
Displaying and maintaining MPLS L2VPN·····································································································422
MPLS L2VPN configuration examples···········································································································423
Configuring local MPLS L2VPN connections·························································································423
Configuring IP interworking over local MPLS L2VPN connections························································424
Configuring a static PW··························································································································426
Configuring an LDP PW·························································································································429
Configuring IP interworking over an LDP PW························································································433
Configuring a BGP PW ··························································································································436
Configuring a remote CCC connection ··································································································440
Configuring an intra-domain multi-segment PW ····················································································444
Configuring an inter-domain multi-segment PW ····················································································447
Configuring VPLS ·······················································································453
Overview························································································································································453
Basic VPLS architecture ························································································································453
VPLS implementation·····························································································································454
H-VPLS··················································································································································456
Hub-spoke networking ···························································································································458
Compatibility information································································································································458
VPLS configuration task list ···························································································································459
Enabling L2VPN·············································································································································459
Configuring an AC··········································································································································460
Configuring a VSI···········································································································································460
Configuring a PW···········································································································································461
Configuring a PW class··························································································································461
Configuring a static PW··························································································································461
Configuring an LDP PW·························································································································462
Configuring a BGP PW ··························································································································462
Configuring a BGP auto-discovery LDP PW··························································································464
Binding an AC to a VSI ··································································································································466
Configuring UPE dual homing························································································································466
Configuring static PW redundancy·········································································································466
Configuring LDP PW redundancy··········································································································467
Configuring MAC address learning················································································································468
Enabling SNMP notifications for L2VPN PW ·································································································468
Displaying and maintaining VPLS··················································································································468
VPLS configuration examples························································································································470
Static PW configuration example···········································································································470
LDP PW configuration example·············································································································474
BGP PW configuration example·············································································································476
BGP auto-discovery LDP PW configuration example············································································480
H-VPLS using MPLS access configuration example ·············································································485
Hub-spoke VPLS configuration example ·······························································································489
H-VPLS UPE dual homing configuration example·················································································492
Configuring L2VPN access to L3VPN or IP backbone································498
Overview························································································································································498
Conventional L2VPN access to L3VPN or IP backbone········································································498
Improved L2VPN access to L3VPN or IP backbone··············································································499

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Configuring conventional L2VPN access to L3VPN or IP backbone ·····························································500
Configuring improved L2VPN access to L3VPN or IP backbone···································································500
Configuring an L2VE interface···············································································································501
Configuring an L3VE interface···············································································································501
Displaying and maintaining L2VPN access to L3VPN or IP backbone··························································502
Improved L2VPN access to L3VPN or IP backbone configuration examples················································502
Access to MPLS L3VPN through an LDP MPLS L2VPN·······································································502
Access to IP backbone through an LDP VPLS······················································································508
Configuring MPLS OAM··············································································513
Overview························································································································································513
MPLS ping··············································································································································513
MPLS tracert··········································································································································513
BFD for MPLS········································································································································513
Periodic MPLS tracert····························································································································514
Protocols and standards ································································································································514
Configuring MPLS OAM for LSP tunnels·······································································································514
Configuring MPLS ping for LSPs ···········································································································514
Configuring MPLS tracert for LSPs········································································································515
Configuring BFD for LSPs······················································································································515
Configuring periodic MPLS tracert for LSPs ··························································································516
Configuring MPLS OAM for MPLS TE tunnels ······························································································516
Configuring MPLS ping for MPLS TE tunnels························································································516
Configuring MPLS tracert for MPLS TE tunnels·····················································································516
Configuring BFD for MPLS TE tunnels ··································································································517
Configuring MPLS OAM for a PW··················································································································517
Configuring MPLS ping for a PW···········································································································518
Configuring BFD for a PW······················································································································518
Displaying MPLS OAM ··································································································································521
BFD for LSP configuration example···············································································································522
Configuring MPLS protection switching ······················································525
Overview························································································································································525
Protection switching triggering modes ···································································································525
Protection switching modes ···················································································································525
Path switching modes····························································································································526
Protocols and standards ································································································································526
Compatibility information································································································································526
MPLS protection switching configuration task list··························································································527
Enabling MPLS protection switching··············································································································527
Creating a protection group ···························································································································527
Configuring PS attributes for the protection group·························································································529
Configuring command switching for the protection group··············································································530
Configuring the PSC message sending interval ····························································································530
Displaying and maintaining MPLS protection switching·················································································530
MPLS protection switching configuration example·························································································531
Network requirements····························································································································531
Configuration procedure·························································································································532
Verifying the configuration······················································································································534
Document conventions and icons·······························································535
Conventions···················································································································································535
Network topology icons··································································································································536
Support and other resources ······································································537
Accessing Hewlett Packard Enterprise Support ····························································································537
Accessing updates·········································································································································537
Websites ················································································································································538
Customer self repair·······························································································································538
Remote support······································································································································538
Documentation feedback ·······················································································································538

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Index···········································································································540