Lucent STGR-CM-IP2000-F User manual

Stinger®IP Control Module
Configuration Guide
Part Number: 363-217-011R9.9.1
Issue 2
For software version 9.9.1
September 2006

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Stinger® IP Control Module Configuration Guide iii
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Stinger® IP Control Module Configuration Guide v
Contents
About This Guide ...............................................................................xix
Chapter 1 Introduction.......................................................................................1-1
Stinger IP DSLAM network features ........................................................................ 1-1
Introduction to the Stinger IP2000 control module................................................. 1-3
IP2000 model numbers and platform support................................................... 1-3
IP2000 support for up to 2048 trunk terminated calls ...................................... 1-4
Features not currently supported by the IP2000 ............................................... 1-5
Introduction to the Stinger IP2100 control module................................................. 1-5
Model numbers and platform support............................................................... 1-6
IP2100 memory modes ...................................................................................... 1-7
Maximizing the number of user connections .................................................... 1-7
Overview of OAM-CONFIG profile settings................................................ 1-8
Required IP2100 memory mode to maximize user connections ................ 1-8
Additional connections created for trunk-terminated connections ............ 1-8
Notice of OAM limitation with more than 5000 user PVCs........................ 1-8
Configurable IP2100 port managers .................................................................. 1-9
System-generated profiles ........................................................................... 1-9
Fixed-rate and nonfixed-rate bandwidth .................................................... 1-9
Configurable NP-PORT profile settings ..................................................... 1-10
Caution about modifying NP-PORT bandwidth allocations ...................... 1-12
How to recover from a bandwidth starvation condition ........................... 1-13
Protection against exceeding line capacity in NP-PORT configurations.... 1-13
Sample HB LIM NP-PORT configuration .................................................. 1-13
Features not currently supported by the IP2100 ............................................. 1-15
Network architecture overview.............................................................................. 1-15
Multicast video ................................................................................................ 1-15
Internet and voice access ................................................................................. 1-16
Multiplexing multiple IP flows on a single ATM VCC ..................................... 1-17
Chapter 2 Gigabit Ethernet Configuration .......................................................2-1
Configuring Gigabit Ethernet interfaces................................................................... 2-1
Overview of ETHERNET profile settings............................................................ 2-1
Enabling layer 2 bridging for VLAN operations ................................................. 2-3
Verifying the Gigabit Ethernet interface setup .................................................. 2-3
Checking the routing table.......................................................................... 2-4
Verifying the network processor setup for the interface............................. 2-4
Verifying the SAR setup for the interface ................................................... 2-4
Verifying IP packet transfer on the interface............................................... 2-4
Configuring Gigabit Ethernet port redundancy ....................................................... 2-5

vi Stinger® IP Control Module Configuration Guide
Contents
Configuring a soft IP interface for Gigabit Ethernet redundancy ...................... 2-6
Configuring Gigabit Ethernet redundancy for RFC 2684 (IPoA) connections .. 2-6
Configuring Gigabit Ethernet redundancy for VLAN bridging .......................... 2-7
Configuring a redundant LAN MBONE............................................................. 2-8
Configuring LACP on Gigabit Ethernet ports (IP2100 only).................................... 2-9
LACP configuration overview.......................................................................... 2-10
ETHER-GROUP settings ............................................................................ 2-10
Virtual ETHERNET profile settings for a LAG ........................................... 2-10
ETHERNET profile settings for physical ports in a LAG ............................ 2-12
LACP profile settings ................................................................................. 2-13
Sample link aggregation configuration............................................................ 2-14
Configuring a routed VLAN on the aggregated bandwidth....................... 2-14
Configuring an N:1 bridged VLAN that uses the aggregated bandwidth .. 2-15
Configuring an MBONE interface on the aggregated ports....................... 2-15
LACP implementation details .......................................................................... 2-16
LACP-related diagnostics ................................................................................. 2-17
Configuring STP on Gigabit Ethernet ports (IP2100 only)..................................... 2-17
Primary application with this software version ............................................... 2-17
Limitations with this software version ............................................................ 2-18
Configuration overview................................................................................... 2-18
Bridge-level STP settings in the ETHER-GROUP profile ........................... 2-19
Port-level STP settings in each port’s ETHERNET profile.......................... 2-20
Sample configuration with transparent bridging............................................. 2-21
Routing implications for STP-enabled ports .................................................... 2-24
Administrative tools for Gigabit Ethernet .............................................................. 2-25
Chapter 3 VLAN Configuration..........................................................................3-1
IP filters for Ethernet-encapsulated bridged IP datagrams ....................................... 3-2
Configuring 1:1 VLAN bridging................................................................................ 3-2
Overview of VLAN-ETHERNET and CONNECTION settings............................. 3-3
Sample 1:1 VLAN bridging configuration .......................................................... 3-5
Configuring N:1 VLAN bridging ............................................................................... 3-6
Creating and configuring bridge groups ............................................................ 3-6
Overview of BRIDGE-GROUP settings........................................................ 3-7
Sample BRIDGE-GROUP configuration with MAC address aging .............. 3-9
Sample BRIDGE-GROUP configuration with port blocking........................ 3-9
Sample BRIDGE-GROUP configuration with IGMP snooping .................. 3-10
VLAN and connection settings......................................................................... 3-11
How address limiting works............................................................................. 3-11
Sample N:1 VLAN bridging configuration with address limiting..................... 3-12
Configuring DHCP and PPPoE snooping for DSL line identification ............... 3-14
Structure of identifiers added to DHCP and PPPoE Discovery packets ..... 3-14
Configuring DHCP snooping ..................................................................... 3-16
Configuring PPPoE snooping for line identification of PPPoE clients ....... 3-20
Configuring stacked VLANs.................................................................................... 3-24
Bridging untagged frames to stacked VLANs ................................................... 3-25
Overview of VLAN stacking settings for untagged frames ........................ 3-25
Sample configuration bridging untagged frames....................................... 3-26
Bridging enterprise VLAN tagged frames to stacked VLANs............................ 3-27
Overview of VLAN stacking settings for tagged frames............................. 3-28
Sample configuration for mapping tagged frames..................................... 3-30

Contents
Stinger® IP Control Module Configuration Guide vii
Configuring routed VLANs..................................................................................... 3-32
Creating a virtual IP interface for a routed VLAN ........................................... 3-32
Sample routed VLAN configuration ................................................................ 3-33
Applying an IP filter to a routed VLAN ..................................................... 3-35
Assigning a virtual router to a routed VLAN............................................. 3-35
VLAN bridging of IPoA traffic to an upstream BRAS ............................................. 3-36
Upstream packet processing............................................................................. 3-36
Downstream packet processing ....................................................................... 3-37
Configuration overview................................................................................... 3-37
Overview of the BRAS profile ................................................................... 3-37
Overview of CONNECTION profile settings .............................................. 3-38
Configuring VLAN bridged IPoA...................................................................... 3-39
Configuring bridged IPoA to multiple BRAS with the same IP address .......... 3-41
Caveat when configuring an unnumbered interface for bridged IPoA............ 3-43
Sample VLAN configuration...................................................................... 3-43
Sample profiles .......................................................................................... 3-43
Possible proxy ARP problems with the sample configuration................... 3-44
Conclusions about the sample configuration ............................................ 3-45
VLAN-based ARP table .................................................................................... 3-45
How the VLAN ARP entries are updated dynamically .............................. 3-45
Adding VLAN ARP entries statically.......................................................... 3-45
PPPoA bridging in 1:1 and N:1 VLAN .................................................................... 3-46
Upstream network element configuration requirements ................................ 3-46
PPPoA bridging in N:1 VLANs ......................................................................... 3-47
Required settings to enable PPPoA bridging in a bridge group ................. 3-47
Downstream CPE configuration considerations ........................................ 3-48
Sample configuration enabling PPPoA bridging in a bridge group ........... 3-48
PPPoA bridging in 1:1 VLANs .......................................................................... 3-50
Required setting to enable PPPoA bridging in a 1:1 VLAN ....................... 3-50
Downstream CPE configuration considerations ........................................ 3-51
Sample configuration enabling PPPoA bridging in a 1:1 VLAN circuit ..... 3-51
Administrative tools for VLAN ............................................................................... 3-53
Chapter 4 IP Routing Configuration..................................................................4-1
Introduction to the IP router software ..................................................................... 4-1
Routes and interfaces......................................................................................... 4-2
Displaying the routing table ........................................................................ 4-2
Displaying the interface table ...................................................................... 4-3
IP control module performance statistics .................................................... 4-4
IP address syntax ............................................................................................... 4-4
Configuring IP-INTERFACE profiles for Ethernet ports ........................................... 4-6
Overview of typical local interface settings ....................................................... 4-6
Configuring a local IP interface.......................................................................... 4-7
Defining a local virtual IP interface ................................................................... 4-8
Defining a soft interface for increased accessibility............................................ 4-8
Disabling directed broadcasts to protect against denial-of-service..................... 4-8
Configuring IP-GLOBAL network features .............................................................. 4-9
Setting a system address .................................................................................... 4-9
Configuring DNS.............................................................................................. 4-10
Overview of typical DNS settings .............................................................. 4-10
Specifying domain names for lookups ...................................................... 4-10

viii Stinger® IP Control Module Configuration Guide
Contents
Setting RIP options .......................................................................................... 4-11
RIP policy for propagating updates back to the originating subnet........... 4-12
RIP triggering ............................................................................................ 4-12
Limiting the size of UDP packet queues .................................................... 4-12
Ignoring default routes when updating the routing table......................... 4-13
Suppressing host-route advertisements .................................................... 4-13
Subscriber profile sharing ................................................................................ 4-14
Equal cost multipath routing ........................................................................... 4-15
Packet-based ECMP................................................................................... 4-15
Flow-based ECMP ..................................................................................... 4-15
Caveat about changing the type of load balancing ................................... 4-15
Limitations of ECMP load balancing ......................................................... 4-16
Overview of ECMP settings....................................................................... 4-16
Sample downstream ECMP configuration ................................................ 4-17
Example of downstream flow-based ECMP .............................................. 4-19
Sample upstream ECMP through routed VLAN interfaces ....................... 4-21
Configuring and using address pools ............................................................... 4-23
Pool requirements ..................................................................................... 4-23
Overview of settings for defining pools..................................................... 4-23
Preventing the use of class boundary addresses........................................ 4-26
Examples of configuring address pools ..................................................... 4-26
Example of configuring summarized address pools .................................. 4-27
Examples of assigning an address from a pool .......................................... 4-29
IP pool chaining ........................................................................................ 4-30
Slot-based address assignment......................................................................... 4-36
Overview of profile settings....................................................................... 4-36
Sample slot-based address configuration using the global router ............. 4-37
Expanding the sample configuration to use a virtual router .................... 4-39
Configuring IP-ROUTE profiles .............................................................................. 4-40
Overview of typical static route settings .......................................................... 4-40
Offloading routing overhead to an external router ......................................... 4-41
Creating a static route to a subnet ................................................................... 4-42
Overview of routed subscriber connection features............................................... 4-42
Source interface local addresses....................................................................... 4-42
Packets that use the specified source address............................................ 4-42
CPE client considerations .......................................................................... 4-43
Soft IP interface requirement .................................................................... 4-43
Overview of configuration settings ........................................................... 4-44
Sample configuration with a source interface address .............................. 4-44
Anti-spoofing protection for IPoA, BIR, PPPoA, and PPPoE connections ....... 4-46
Overview of anti-spoofing settings............................................................ 4-47
Sample anti-spoofing configuration .......................................................... 4-48
Configuring IPoA subscriber connections .............................................................. 4-49
Typical CONNECTION atm-options settings for terminating PVCs ................. 4-49
Typical CONNECTION ip-options settings for terminating PVCs .................... 4-50
Sample RFC 2684 (IPoA) terminating PVC ..................................................... 4-51
Example of using a local-address setting for a numbered interface ................ 4-52
Example of routing a terminated PVC across Gigabit Ethernet ....................... 4-53
Example of using IP routing to aggregate PVCs onto a trunk VC.................... 4-55
Configuring BIR subscriber connections ................................................................ 4-56
Overview of CONNECTION bir-options and ip-options settings ..................... 4-56
Sample subnet (BIR/24) configuration............................................................ 4-57

Contents
Stinger® IP Control Module Configuration Guide ix
Sample host route (BIR/32) configurations..................................................... 4-58
Sample BIR connection on a VDSL port.......................................................... 4-60
Sample use of filters with BIR connections ..................................................... 4-61
Configuring multiple WAN virtual IP interfaces on a BIR connection............ 4-62
Overview of multiple IP address settings .................................................. 4-63
Sample configuration of multiple addresses on a BIR connections .......... 4-64
How routes are created for WAN virtual interfaces......................................... 4-65
Configuring DHCP relay for IPoA and BIR connections ........................................ 4-66
RFC compliance and caveats ........................................................................... 4-66
DHCP option 82 ............................................................................................... 4-66
WAN virtual interfaces on DHCP-configured BIR connections....................... 4-66
IP address assignments on DHCP-configured WAN virtual interfaces ...... 4-67
DHCP IP address lease time for WAN virtual interfaces............................ 4-67
When WAN virtual interfaces are activated.............................................. 4-67
How the system selects an interface for incoming packets ....................... 4-68
Deactivating and deleting WAN virtual IP interfaces ................................ 4-68
DHCP relay configuration settings ................................................................... 4-68
Overview of IP-GLOBAL DHCP relay settings .......................................... 4-68
Overview of DHCP relay agent settings..................................................... 4-69
Overview of DHCP option 82 suboption settings ...................................... 4-70
Overview of IP-INTERFACE and CONNECTION DHCP settings............... 4-72
Per-connection control of the DHCP relay giaddr field ................................... 4-73
Overview of how to use per-connection giaddr contents ......................... 4-73
Samples of how various settings affect giaddr contents ............................ 4-74
Sample DHCP relay configurations for IPoA connections ............................... 4-74
Sample configuration using DHCP relay without option 82 ..................... 4-74
Sample configuration using DHCP relay with option 82 .......................... 4-75
Sending only a hostname in the suboption fields ..................................... 4-75
Interoperation with DHCP servers that zero-delimit suboption fields ...... 4-76
Allowing non-standard DHCP source ports .............................................. 4-76
DHCP issues on LAN management interfaces ................................................. 4-76
Sample DHCP relay configurations for BIR connections ................................. 4-78
Sample configuration with no DHCP relay on a BIR connection ............. 4-78
Sample configuration enabling relay agent on a BIR connection ............. 4-79
Sample configuration with option 82 ....................................................... 4-80
Sample configuration with option 82 and multiple interface creation ..... 4-81
Sample configuration on a VDSL port with option 82 and multiple interface
creation......................................................................................... 4-82
Sample using the soft interface address in the giaddr field ....................... 4-82
Sample configuration using the DHCP router option ............................... 4-83
Sample configuration that sends only a hostname ................................... 4-84
Configuring broadband RAS subscriber access....................................................... 4-85
Recommended call-type setting for PPP sessions .......................................... 4-85
Overview of PPPoA and PPPoE topologies ...................................................... 4-86
Required setup for PPPoA and PPPoE connections ......................................... 4-87
Configuring the ANSWER-DEFAULTS profile for PPP sessions ...................... 4-87
Terminating traffic on a LIM internal interface ............................................... 4-89
The underlying ATM circuit required to terminate traffic ........................ 4-89
PPPoA and PPPoE encapsulation types in the underlying ATM circuit .... 4-89
Configuring an ATM circuit to terminate PPPoA ...................................... 4-90
Configuring an ATM circuit to terminate PPPoE ...................................... 4-91
Example of configuring a PPPoA connection .................................................. 4-91

xStinger® IP Control Module Configuration Guide
Contents
Overview of PPPoA CONNECTION settings.............................................. 4-92
Sample PPPoA connection with bidirectional CHAP authentication ........ 4-93
PPPoA over LLC............................................................................................... 4-94
Verifying the encapsulation type............................................................... 4-94
Example of configuring a PPPoE connection................................................... 4-95
Overview of PPPoE CONNECTION settings .............................................. 4-95
Sample PPPoE connection using PAP authentication ............................... 4-96
Sample PPPoE connection on a VDSL port ............................................... 4-97
Enabling LCP keepalives ........................................................................... 4-98
Enabling magic-number negotiation when LQM is disabled .................. 4-101
Enabling support for PPPoE service names.................................................... 4-101
Details of the service-name negotiation process ..................................... 4-101
Configuration overview .......................................................................... 4-102
Sample PPPoE server configuration using local profiles.......................... 4-105
Sample PPPoE server configuration using RADIUS ................................ 4-106
Administrative tools for IP routing....................................................................... 4-109
Chapter 5 Ethernet and IP QoS..........................................................................5-1
Overview of the QoS implementation ..................................................................... 5-1
Packet classification subsystem .......................................................................... 5-2
Rate-limiting, prioritization, and scheduling subsystem.................................... 5-3
Packet marking engine ...................................................................................... 5-3
Configuration steps............................................................................................ 5-4
What the system does at the output interface ................................................... 5-4
Default IP QoS configuration............................................................................. 5-5
Introduction to PACKET-FLOWS profile settings .................................................... 5-5
Layer 2 classifiers ............................................................................................... 5-6
Packet classifiers................................................................................................. 5-7
Caveat about fragmented IP packets ........................................................... 5-9
Details of packet classifier comparison passes ............................................. 5-9
Comparisons of IP addresses ..................................................................... 5-10
Comparisons of IP TOS values................................................................... 5-10
Comparisons of port numbers ................................................................... 5-11
How nonmatching packets are prioritized (the default rule) .................... 5-11
Scheduling and rate limiting............................................................................ 5-12
Token buckets in the single-rate three color policing algorithm............... 5-13
Using a single rate two-color algorithm .................................................... 5-14
Notes on the policing implementation ...................................................... 5-14
Rate limiting on VLAN bridged interfaces................................................. 5-14
Example of rate limiting on a BIR connection .......................................... 5-15
Example of rate limiting on a 1:1 bridged VLAN ...................................... 5-16
Packet marking ................................................................................................ 5-16
QoS packet marking for routed traffic....................................................... 5-17
Ethernet p-bit marking for bridged or routed VLAN traffic ...................... 5-17
Overview of packet marking settings ........................................................ 5-18
Example of IP ToS marking on a routed VLAN interface.......................... 5-19
Example of Ethernet p-bit marking .......................................................... 5-20
Example of mapping ATM QoS to a packet marking value ...................... 5-21
QoS-related connection and interface settings....................................................... 5-22
Applying a PACKET-FLOWS profile to an output interface ............................ 5-23
Inheritance of PACKET-FLOWS configurations on virtual IP interfaces .. 5-23