Huawei AR2200 Series User manual

Huawei AR2200 Series Enterprise Routers
V200R001C01
Configuration Guide - MPLS
Issue 01
Date 2012-01-06
HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written
consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the
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and recommendations in this document are provided "AS IS" without warranties, guarantees or representations
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The information in this document is subject to change without notice. Every effort has been made in the
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Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
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People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
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About This Document
Intended Audience
This document provides the basic concepts, configuration procedures, and configuration
examples in different application scenarios of the static LSPs configuration, and MPLS LDP
configuration supported by the AR2200 device.
This document describes how to configure the static LSPs configuration, and MPLS LDP
configuration.
This document is intended for:
lData configuration engineers
lCommissioning engineers
lNetwork monitoring engineers
lSystem maintenance engineers
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol Description
DANGER
Indicates a hazard with a high level of risk, which if not
avoided, will result in death or serious injury.
WARNING
Indicates a hazard with a medium or low level of risk, which
if not avoided, could result in minor or moderate injury.
CAUTION
Indicates a potentially hazardous situation, which if not
avoided, could result in equipment damage, data loss,
performance degradation, or unexpected results.
TIP
Indicates a tip that may help you solve a problem or save
time.
NOTE
Provides additional information to emphasize or supplement
important points of the main text.
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Command Conventions
The command conventions that may be found in this document are defined as follows.
Convention Description
Boldface The keywords of a command line are in boldface.
Italic Command arguments are in italics.
[ ] Items (keywords or arguments) in brackets [ ] are optional.
{ x | y | ... } Optional items are grouped in braces and separated by
vertical bars. One item is selected.
[ x | y | ... ] Optional items are grouped in brackets and separated by
vertical bars. One item is selected or no item is selected.
{ x | y | ... }*Optional items are grouped in braces and separated by
vertical bars. A minimum of one item or a maximum of all
items can be selected.
[ x | y | ... ]*Optional items are grouped in brackets and separated by
vertical bars. Several items or no item can be selected.
&<1-n> The parameter before the & sign can be repeated 1 to n times.
# A line starting with the # sign is comments.
Interface Numbering Conventions
Interface numbers used in this manual are examples. In device configuration, use the existing
interface numbers on devices.
Change History
Updates between document issues are cumulative. Therefore, the latest document issue contains
all updates made in previous issues.
Changes in Issue 01 (2012-01-06)
Initial commercial release.
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Contents
About This Document.....................................................................................................................ii
1 Static LSPs Configuration............................................................................................................1
1.1 Introduction to Static LSPs.................................................................................................................................2
1.1.1 Overview of Static LSPs............................................................................................................................2
1.1.2 Static LSPs Features Supported by the AR2200.......................................................................................2
1.2 Configuring Static LSPs.....................................................................................................................................2
1.2.1 Establishing the Configuration Task.........................................................................................................2
1.2.2 Configuring the LSR ID............................................................................................................................3
1.2.3 Enabling MPLS.........................................................................................................................................4
1.2.4 Configuring the Ingress for a Static LSP...................................................................................................4
1.2.5 Configuring the Transit Node for a Static LSP.........................................................................................5
1.2.6 Configuring the Egress for a Static LSP....................................................................................................5
1.2.7 Checking the Configuration.......................................................................................................................5
1.3 Maintaining Static LSPs.....................................................................................................................................6
1.3.1 Checking the LSP Connectivity and Reachability....................................................................................6
1.3.2 Enabling the LSP Trap Function...............................................................................................................7
1.4 Configuration Examples.....................................................................................................................................7
1.4.1 Example for Configuring Static LSPs.......................................................................................................7
2 MPLS LDP Configuration..........................................................................................................15
2.1 Introduction to MPLS LDP..............................................................................................................................17
2.1.1 MPLS LDP Overview.............................................................................................................................17
2.1.2 MPLS LDP Features Supported by the AR2200.....................................................................................17
2.2 Configuring LDP Sessions...............................................................................................................................18
2.2.1 Establishing the Configuration Task.......................................................................................................19
2.2.2 Configuring the LSR ID..........................................................................................................................20
2.2.3 Enabling MPLS.......................................................................................................................................21
2.2.4 Enable Global MPLS LDP......................................................................................................................21
2.2.5 (Optional) Configuring the LDP Dynamic Capability Announcement Function....................................22
2.2.6 Configuring LDP Sessions......................................................................................................................23
2.2.7 (Optional) Configuring LDP Transport Addresses.................................................................................24
2.2.8 (Optional) Configuring LDP Timers.......................................................................................................25
2.2.9 (Optional) Configuring LDP Authentication...........................................................................................29
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2.2.10 Checking the Configuration...................................................................................................................31
2.3 Configuring LDP LSP......................................................................................................................................34
2.3.1 Establishing the Configuration Task.......................................................................................................34
2.3.2 Configuring LDP LSP.............................................................................................................................35
2.3.3 (Optional) Configuring Label Advertisement Modes.............................................................................35
2.3.4 (Optional) Configuring LDP to Automatically Trigger the Request in DoD Mode................................36
2.3.5 (Optional) Configuring LDP MTU Signaling.........................................................................................37
2.3.6 (Optional) Configuring an Inbound LDP Policy.....................................................................................37
2.3.7 (Optional) Configuring an Outbound LDP Policy..................................................................................38
2.3.8 (Optional) Configuring the Trigger Policy for Establishing LSPs..........................................................40
2.3.9 (Optional) Configuring the Trigger Policy for Establishing Transit LSPs..............................................41
2.3.10 Checking the Configuration...................................................................................................................42
2.4 Configuring LDP Extension for Inter-Area LSP..............................................................................................43
2.4.1 Establishing the Configuration Task.......................................................................................................43
2.4.2 Configuring LDP Extension for Inter-Area LSP.....................................................................................44
2.4.3 Checking the Configuration.....................................................................................................................44
2.5 Configuring Synchronization Between LDP and IGP......................................................................................45
2.5.1 Establishing the Configuration Task.......................................................................................................45
2.5.2 Enabling Synchronization Between LDP and IGP..................................................................................46
2.5.3 (Optional) Setting the Hold-down Timer Value......................................................................................46
2.5.4 (Optional) Setting the Hold-max-cost Timer Value................................................................................47
2.5.5 (Optional) Setting the Delay Timer Value..............................................................................................48
2.5.6 Checking the Configuration.....................................................................................................................49
2.6 Configuring Synchronization Between LDP and Static Routes.......................................................................50
2.6.1 Establishing the Configuration Task.......................................................................................................50
2.6.2 Enabling Synchronization Between LDP and Static Routes...................................................................51
2.6.3 (Optional) Setting a Hold-down Timer...................................................................................................52
2.6.4 Checking the Configuration.....................................................................................................................53
2.7 Configuring LDP GTSM..................................................................................................................................53
2.7.1 Establishing the Configuration Task.......................................................................................................54
2.7.2 Configuring LDP GTSM.........................................................................................................................54
2.7.3 Checking the Configuration.....................................................................................................................55
2.8 Configuring LDP GR........................................................................................................................................55
2.8.1 Establishing the Configuration Task.......................................................................................................55
2.8.2 Enabling LDP GR....................................................................................................................................56
2.8.3 (Optional) Configuring GR Helper Timers.............................................................................................57
2.8.4 Checking the Configuration.....................................................................................................................58
2.9 Maintaining MPLS LDP...................................................................................................................................58
2.9.1 Resetting LDP..........................................................................................................................................58
2.9.2 Checking the LSP Connectivity and Reachability..................................................................................59
2.9.3 Enabling the LSP Trap Function.............................................................................................................59
2.10 Configuration Examples.................................................................................................................................60
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2.10.1 Example for Configuring Local LDP Sessions.....................................................................................60
2.10.2 Example for Configuring Remote MPLS LDP Sessions.......................................................................63
2.10.3 Example for Configuring LSPs by Using LDP.....................................................................................67
2.10.4 Example for Configuring LDP to Automatically Trigger a Request in DoD Mode.............................70
2.10.5 Example for Configuring an Inbound LDP Policy................................................................................76
2.10.6 Example for Configuring an Outbound LDP Policy.............................................................................81
2.10.7 Example for Configuring Transit LSPs Through the Prefix List..........................................................86
2.10.8 Example for Configuring LDP Extension for Inter-Area LSP..............................................................91
2.10.9 Example for Configuring Synchronization Between LDP and IGP......................................................98
2.10.10 Example for Configuring Synchronization Between LDP and Static Routes...................................104
2.10.11 Example for Configuring LDP GTSM..............................................................................................109
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1 Static LSPs Configuration
About This Chapter
You can set up a static LSP by manually allocating labels to LSRs. The static LSP applies stable,
small-scale networks.
1.1 Introduction to Static LSPs
Labels can be allocated to LSRs in manual mode to set up a static LSP.
1.2 Configuring Static LSPs
A static LSP can be set up only after each LSR is manually configured.
1.3 Maintaining Static LSPs
The static LSP maintenance consists of deleting MPLS statistics, detecting connectivity or
reachability of an LSP, and configuring the trap function on an LDP LSP.
1.4 Configuration Examples
The following sections provide several examples of the static LSP configurations. Familiarize
yourself with the configuration procedures against the networking diagram. Each configuration
example consists of the networking requirements, configuration precautions, configuration
roadmap, configuration procedures, and configuration files.
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1.1 Introduction to Static LSPs
Labels can be allocated to LSRs in manual mode to set up a static LSP.
1.1.1 Overview of Static LSPs
The static LSP cannot be set up using a label distribution protocol but can be set up by an
administrator. The static LSP applies to a stable and small-scaled network with the simple
topology.
When configuring a static LSP, the administrator must manually allocate labels for each LSR
by following the rule that the value of the outgoing label of the previous node is equal to the
value of the incoming label of the next node. Each LSR on the static LSP cannot detect the
changes of other LSRs on the LSP. Therefore, the static LSP is a local concept.
A static LSP is set up without using label distribution protocols, and does not need to exchange
control packets. Therefore, the static LSP consumes few resources and applies to small-scale
networks with simple and stable topology. A static LSP cannot vary with the network topology
dynamically. The administrator must adjust the static LSP according to the network topology.
1.1.2 Static LSPs Features Supported by the AR2200
Static LSPs
Static LSPs must be configured manually by the administrator. Each LSR on the static LSP
cannot sense the status of the entire LSP, because the static LSP is a local concept. A static LSP
cannot vary with the change in a route dynamically. The administrator must adjust the static
LSP.
1.2 Configuring Static LSPs
A static LSP can be set up only after each LSR is manually configured.
1.2.1 Establishing the Configuration Task
Before configuring a static LSP, familiarize yourself with the applicable environment, complete
the pre-configuration tasks, and obtain the required data.
Applicable Environment
A static LSP works properly only after all the LSRs along the LSP are configured.
The setup of static LSPs does not require the label distribution protocol or exchange any control
packets. Therefore, the static LSPs consume a few resources and apply to small-scale networks
with a simple and stable topology. The static LSPs cannot vary with the network topology
dynamically. The administrator, therefore, needs to adjust the static LSPs according to the
network topology.
Static LSPs are used over MPLS L2VPNs.
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For information about the MPLS L2VPN configuration, refer to the Huawei AR2200 Series
Enterprise Routers Configuration Guide - VPN.
Pre-configuration Tasks
Before configuring static LSPs, complete the following task:
lConfiguring a static unicast route or an IGP to connect LSRs on the network layer
Data Preparation
To configure static LSPs, you need the following data.
No. Data
1Name of the static LSP
2 Destination address and mask
3 Value of an incoming or outgoing label on each LSR
4 Next hop address or outgoing interface on the ingress
5 Incoming interface, next hop address, or outgoing interface on a transit node
6 Incoming interface on the egress
1.2.2 Configuring the LSR ID
Before enabling MPLS, configure the LSR ID.
Context
When configuring an LSR ID, note the following issues:
lThe LSR ID must be configured before other MPLS commands are run.
lThe LSR ID does not have a default value and must be configured manually.
lUsing the address of the loopback interface of the LSR as the LSR ID is recommended.
lTo modify the configured LSR ID, run the undo mpls command in the system view to
delete all the MPLS configurations.
Perform the following steps on each LSR in an MPLS domain:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
mpls lsr-id lsr-id
The LSR ID of the local node is configured.
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lsr-id: A number in dotted decimal notation that identifies an LSR.
----End
1.2.3 Enabling MPLS
MPLS features can be configured only after MPLS is enabled.
Context
Perform the following steps on each LSR in an MPLS domain:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
mpls
MPLS is enabled globally and the MPLS view is displayed.
Step 3 Run:
quit
Return to the system view.
Step 4 Run:
interface interface-type interface-number
The interface to participate in MPLS forwarding is specified.
Step 5 Run:
mpls
MPLS is enabled on the interface.
----End
1.2.4 Configuring the Ingress for a Static LSP
Before setting up a static LSP, configure the ingress manually.
Context
Perform the following steps on the LSR to be configured as the ingress:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
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static-lsp ingress lsp-name destination ip-address { mask-length | mask }
{ nexthop next-hop-address | outgoing-interface interface-type interface-number }
* out-label out-label
The LSR is configured as the ingress on the specified LSP.
----End
1.2.5 Configuring the Transit Node for a Static LSP
To set up a static LSP, configure the transit node manually.
Context
Perform the following steps on the LSR to be configured as a transit node:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
static-lsp transit lsp-name incoming-interface interface-type interface-number in-
label in-label { nexthop next-hop-address | outgoing-interface interface-type
interface-number } out-label out-label
The LSR is configured as the transit node on the specified LSP.
----End
1.2.6 Configuring the Egress for a Static LSP
To set up a static LSP, configure the egress manually.
Context
Perform the following steps on the LSR to be configured as the egress:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
static-lsp egress lsp-name incoming-interface interface-type interface-number in-
label in-label [ lsrid ingress-lsr-id ]
The LSR is configured as the egress on the specified LSP.
----End
1.2.7 Checking the Configuration
After a static LSP is set up, you can see that the static LSP is Up and the route status is Ready.
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Prerequisite
The configurations of the static LSP function are complete.
Procedure
lRun the display mpls static-lsp [ lsp-name ] [ { include | exclude } ip-address mask-
length ] [ verbose ] command to check the static LSP.
lRun the display mpls route-state [ vpn-instance vpn-instance-name ] [ { exclude |
include } { idle | ready | settingup } * | destination-address mask-length ] [ verbose ]
command to check the LSP route on the ingress.
----End
Example
If the configurations have succeeded, run the preceding commands to display information about
the static LSP:
lAfter the display mpls static-lsp command is run, information about the static LSP
configuration is displayed, including the name of the static LSP, FEC, values of the
incoming label and the outgoing label, and the incoming and outgoing interfaces. In
addition, you can see that the status of the LSP is Up.
<Huawei> display mpls static-lsp
TOTAL : 1 STATIC LSP(S)
UP : 1 STATIC LSP(S)
DOWN : 0 STATIC LSP(S)
Name FEC I/O Label I/O If Stat
lsp1 3.3.3.9/32 NULL/100 -/GE1/0/0 Up
1.3 Maintaining Static LSPs
The static LSP maintenance consists of deleting MPLS statistics, detecting connectivity or
reachability of an LSP, and configuring the trap function on an LDP LSP.
1.3.1 Checking the LSP Connectivity and Reachability
You can monitor connectivity or reachability of an LSP by running the ping or tracert command.
Context
You can run the following commands in any view to perform MPLS ping and MPLS tracert.
Procedure
lRun:
ping lsp [ -a source-ip | -c count | -exp exp-value | -h ttl-value | -m
interval | -r reply-mode | -s packet-size | -t time-out | -v ] * ip destination-
address mask-length [ ip-address ] [ nexthop nexthop-address | draft6 ]
MPLS ping is performed.
If draft6 is specified, the command is implemented according to draft-ietf-mpls-lsp-
ping-06. By default, the command is implemented according to RFC 4379.
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lRun:
tracert lsp [ -a source-ip | -exp exp-value | -h ttl-value | -r reply-mode | -
t time-out ] * ip destination-address mask-length [ ip-address ] [ nexthop
nexthop-address | draft6 ]
MPLS tracert is performed.
If draft6 is specified, the command is implemented according to draft-ietf-mpls-lsp-
ping-06. By default, the command is implemented according to RFC 4379.
----End
1.3.2 Enabling the LSP Trap Function
By configuring the trap function on an LSP, you can notify the NMS of the changes in the LSP
status.
Context
Run the following commands in the system view to notify the Network Management System
(NMS) of LSP status changes.
By default, the trap function is disabled during the setup of the LDP LSP.
Procedure
lRun the snmp-agent trap suppress feature-name lsp trap-name { mplsxcup |
mplsxcdown } trap-interval trap-interval [ max-trap-number max-trap-number ]
command in the system view to enable the trap function for the LDP LSP and enable the
debugging of excessive mplsxcup or mplsxcdown information.
----End
1.4 Configuration Examples
The following sections provide several examples of the static LSP configurations. Familiarize
yourself with the configuration procedures against the networking diagram. Each configuration
example consists of the networking requirements, configuration precautions, configuration
roadmap, configuration procedures, and configuration files.
1.4.1 Example for Configuring Static LSPs
This section provides an example for configuring a static LSP.
Networking Requirements
As shown in Figure 1-1, the LSRs support MPLS and OSPF as an IGP running on the MPLS
backbone network.
Bidirectional static LSPs are set up between LSRA and LSRD. The LSP from LSRA to LSRD
is LSRA -> LSRB -> LSRD; the LSP from LSRD to LSRA is LSRD -> LSRC -> LSRA.
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Figure 1-1 Networking diagram of configuring static LSPs
Loopback1
1.1 .1 .9/3 2
Loopback1
3.3 .3.9/3 2
Loopback1
2.2 .2 .9/3 2
L S R A
Loopback1
4.4 .4 .9/3 2
L S R B
L S R C
L S R D
GE2/0/0
10.3.1.1/30
GE1/0/0
10.1.1.2/30
GE2/0/0
10.2.1.1/30
GE1/0/0
10.3.1.2/30
GE2/0/0
10.4.1.1/30
GE1/0/0
10.2.1.2/30
GE2/0/0
10.4.1.2/30
GE1/0/0
10.1.1.1/30
Configuration Roadmap
The configuration roadmap is as follows:
1. Configure the IP address of each interface, set the loopback address as the LSR ID, and use
OSPF to advertise the network segments to which the interfaces are connected and the LSR
ID host route.
2. Enable MPLS globally on each LSR.
3. Enable MPLS on the interfaces.
4. Specify the destination address, outgoing interface or next hop, outgoing label for the LSP
on the ingress LSR.
5. Specify the incoming interface, outgoing label corresponding to the incoming label of the
last, outgoing interface or next hop of the LSP on the transit.
6. Specify the incoming interface and the incoming label that is the same as the outgoing label
from the last LSR of the LSP on the egress.
Data Preparation
To complete the configuration, you need the following data:
lIP addresses of the interfaces, OSPF process ID, and area ID
lName of the static LSP
lOutgoing label of the interfaces
Procedure
Step 1 Configure the IP address of each interface.
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According to Figure 1-1, configure the IP address and the mask of the interfaces, including the
loopback interface. The configuration details are not provided here.
Step 2 Use OSPF to advertise the network segments to which the interfaces are connected and the LSR
ID host route.
# Configure LSRA.
[LSRA] ospf 1
[LSRA-ospf-1] area 0
[LSRA-ospf-1-area-0.0.0.0] network 1.1.1.9 0.0.0.0
[LSRA-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.3
[LSRA-ospf-1-area-0.0.0.0] network 10.3.1.0 0.0.0.3
[LSRA-ospf-1-area-0.0.0.0] quit
[LSRA-ospf-1] quit
# Configure LSRB.
[LSRB] ospf 1
[LSRB-ospf-1] area 0
[LSRB-ospf-1-area-0.0.0.0] network 2.2.2.9 0.0.0.0
[LSRB-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.3
[LSRB-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.3
[LSRB-ospf-1-area-0.0.0.0] quit
[LSRB-ospf-1] quit
# Configure LSRC.
[LSRC] ospf 1
[LSRC-ospf-1] area 0
[LSRC-ospf-1-area-0.0.0.0] network 3.3.3.9 0.0.0.0
[LSRC-ospf-1-area-0.0.0.0] network 10.3.1.0 0.0.0.3
[LSRC-ospf-1-area-0.0.0.0] network 10.4.1.0 0.0.0.3
[LSRC-ospf-1-area-0.0.0.0] quit
[LSRC-ospf-1] quit
# Configure LSRD.
[LSRD] ospf 1
[LSRD-ospf-1] area 0
[LSRD-ospf-1-area-0.0.0.0] network 4.4.4.9 0.0.0.0
[LSRD-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.3
[LSRD-ospf-1-area-0.0.0.0] network 10.4.1.0 0.0.0.3
[LSRD-ospf-1-area-0.0.0.0] quit
[LSRD-ospf-1] quit
After the configuration, run the display ip routing-table command on the LSRs, and you can
view that the LSRs already learn routes from each other.
Take the display on LSRA as an example.
[LSRA] display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 14 Routes : 15
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.9/32 Direct 0 0 D 127.0.0.1 InLoopBack0
2.2.2.9/32 OSPF 10 2 D 10.1.1.2 GigabitEthernet1/0/0
3.3.3.9/32 OSPF 10 2 D 10.3.1.2 GigabitEthernet2/0/0
4.4.4.9/32 OSPF 10 3 D 10.1.1.2 GigabitEthernet1/0/0
OSPF 10 3 D 10.3.1.2 GigabitEthernet2/0/0
10.1.1.0/30 Direct 0 0 D 10.1.1.1 GigabitEthernet1/0/0
10.1.1.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
10.1.1.2/32 Direct 0 0 D 10.1.1.2 GigabitEthernet1/0/0
10.2.1.0/30 OSPF 10 2 D 10.1.1.2 GigabitEthernet1/0/0
10.3.1.0/30 Direct 0 0 D 10.3.1.1 GigabitEthernet2/0/0
10.3.1.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
10.3.1.2/32 Direct 0 0 D 10.3.1.2 GigabitEthernet2/0/0
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Configuration Guide - MPLS 1 Static LSPs Configuration
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10.4.1.0/30 OSPF 10 2 D 10.3.1.2 GigabitEthernet2/0/0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
The next hop or outgoing interface of the static LSP on 4.4.4.9/32 from LSRA to LSRD is
determined by the routing table. It is shown in boldface. In this example, the next hop IP address
is 10.1.1.2/30.
In the following example, the display on LSRD is used.
[LSRD] display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 14 Routes : 15
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.9/32 OSPF 10 3 D 10.2.1.1 GigabitEthernet1/0/0
OSPF 10 3 D 10.4.1.1 GigabitEthernet2/0/0
2.2.2.9/32 OSPF 10 2 D 10.2.1.1 GigabitEthernet1/0/0
3.3.3.9/32 OSPF 10 2 D 10.4.1.1 GigabitEthernet2/0/0
4.4.4.9/32 Direct 0 0 D 127.0.0.1 InLoopBack0
10.1.1.0/30 OSPF 10 2 D 10.2.1.1 GigabitEthernet1/0/0
10.2.1.0/30 Direct 0 0 D 10.2.1.2 GigabitEthernet1/0/0
10.2.1.1/32 Direct 0 0 D 10.2.1.1 GigabitEthernet1/0/0
10.2.1.2/32 Direct 0 0 D 127.0.0.1 InLoopBack0
10.3.1.0/30 OSPF 10 2 D 10.4.1.1 GigabitEthernet2/0/0
10.4.1.0/30 Direct 0 0 D 10.4.1.2 GigabitEthernet2/0/0
10.4.1.1/32 Direct 0 0 D 10.4.1.1 GigabitEthernet2/0/0
10.4.1.2/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
The next hop or outgoing interface of the static LSP on 1.1.1.9/32 from LSRD to LSRA is
determined by the routing table. It is shown in boldface. In this example, the next hop IP address
is 10.4.1.1/30.
Step 3 Configure the basic MPLS capability on each LSR.
# Configure LSRA.
[LSRA] mpls lsr-id 1.1.1.9
[LSRA] mpls
[LSRA-mpls] quit
# Configure LSRB.
[LSRB] mpls lsr-id 2.2.2.9
[LSRB] mpls
[LSRB-mpls] quit
# Configure LSRC.
[LSRC] mpls lsr-id 3.3.3.9
[LSRC] mpls
[LSRC-mpls] quit
# Configure LSRD.
[LSRD] mpls lsr-id 4.4.4.9
[LSRD] mpls
[LSRD-mpls] quit
Step 4 Configure the basic MPLS functions on each interface.
# Configure LSRA.
[LSRA] interface gigabitethernet 1/0/0
[LSRA-GigabitEthernet1/0/0] mpls
Huawei AR2200 Series Enterprise Routers
Configuration Guide - MPLS 1 Static LSPs Configuration
Issue 01 (2012-01-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
10

[LSRA-GigabitEthernet1/0/0] quit
[LSRA] interface gigabitethernet 2/0/0
[LSRA-GigabitEthernet2/0/0] mpls
[LSRA-GigabitEthernet2/0/0] quit
# Configure LSRB.
[LSRB] interface gigabitethernet 1/0/0
[LSRB-GigabitEthernet1/0/0] mpls
[LSRB-GigabitEthernet1/0/0] quit
[LSRB] interface gigabitethernet 2/0/0
[LSRB-GigabitEthernet2/0/0] mpls
[LSRB-GigabitEthernet2/0/0] quit
# Configure LSRC.
[LSRC] interface gigabitethernet 1/0/0
[LSRC-GigabitEthernet1/0/0] mpls
[LSRC-GigabitEthernet1/0/0] quit
[LSRC] interface gigabitethernet 2/0/0
[LSRC-GigabitEthernet2/0/0] mpls
[LSRC-GigabitEthernet2/0/0] quit
# Configure LSRD.
[LSRD] interface gigabitethernet 1/0/0
[LSRD-GigabitEthernet1/0/0] mpls
[LSRD-GigabitEthernet1/0/0] quit
[LSRD] interface gigabitethernet 2/0/0
[LSRD-GigabitEthernet2/0/0] mpls
[LSRD-GigabitEthernet2/0/0] quit
Step 5 Establish a static LSP from LSRA to LSRD.
# Configure the ingress LSRA.
[LSRA] static-lsp ingress RAtoRD destination 4.4.4.9 32 nexthop 10.1.1.2 out-label
20
# Configure the transit LSRB.
[LSRB] static-lsp transit RAtoRD incoming-interface gigabitethernet 1/0/0 in-label
20 nexthop 10.2.1.2 out-label 40
# Configure the egress LSRD.
[LSRD] static-lsp egress RAtoRD incoming-interface gigabitethernet 1/0/0 in-label
40
After the configuration, run the display mpls static-lsp verbose or display mpls lsp command
on the LSRs to view the status of the LSP.
Take the display on LSRA as an example.
[LSRA] display mpls static-lsp
TOTAL : 1 STATIC LSP(S)
UP : 1 STATIC LSP(S)
DOWN : 0 STATIC LSP(S)
Name FEC I/O Label I/O If Status
RAtoRD 4.4.4.9/32 NULL/20 -/GE1/0/0 Up
As the LSP is unidirectional, you need to configure a static LSP from LSRD to LSRA.
Step 6 Establish the static LSP from LSRD to LSRA.
In the same method, configure the static LSP from LSRD to LSRA.
# Configure the ingress LSRD.
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Configuration Guide - MPLS 1 Static LSPs Configuration
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[LSRD] static-lsp ingress RDtoRA destination 1.1.1.9 32 nexthop 10.4.1.1 out-label
30
# Configure the transit LSRC.
[LSRC] static-lsp transit RDtoRA incoming-interface gigabitethernet 2/0/0 in-label
30 nexthop 10.3.1.1 out-label 60
# Configure the egress LSRA.
[LSRA] static-lsp egress RDtoRA incoming-interface gigabitethernet 2/0/0 in-label
60
Step 7 Verify the configuration
# After the configuration, run the ping lsp ip 1.1.1.9 32 on LSRD, and you can view that the
LSP is reachable.
Run the display mpls static-lsp or display mpls static-lsp verbose command on the LSRs, and
you can view the status and the detailed information about the static LSP.
In the following example, the display on LSRD is used.
[LSRD] display mpls static-lsp
TOTAL : 2 STATIC LSP(S)
UP : 2 STATIC LSP(S)
DOWN : 0 STATIC LSP(S)
Name FEC I/O Label I/O If Status
RAtoRD -/- 40/NULL GE1/0/0/- Up
RDtoRA 1.1.1.9/32 NULL/30 -/GE2/0/0 Up
[LSRD] display mpls static-lsp verbose
No : 1
LSP-Name : RAtoRD
LSR-Type : Egress
FEC : -/-
In-Label : 40
Out-Label : NULL
In-Interface : GigabitEthernet1/0/0
Out-Interface : -
NextHop : -
Static-Lsp Type: Normal
Lsp Status : Up
No : 2
LSP-Name : RDtoRA
LSR-Type : Ingress
FEC : 1.1.1.9/32
In-Label : NULL
Out-Label : 30
In-Interface : -
Out-Interface : GigabitEthernet2/0/0
NextHop : 10.4.1.1
Static-Lsp Type: Normal
Lsp Status : Up
----End
Configuration Files
lConfiguration file of LSRA
#
sysname LSRA
#
mpls lsr-id 1.1.1.9
mpls
#
interface GigabitEthernet1/0/0
ip address 10.1.1.1 255.255.255.252
Huawei AR2200 Series Enterprise Routers
Configuration Guide - MPLS 1 Static LSPs Configuration
Issue 01 (2012-01-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
12

mpls
#
interface GigabitEthernet2/0/0
ip address 10.3.1.1 255.255.255.252
mpls
#
interface LoopBack1
ip address 1.1.1.9 255.255.255.255
#
ospf 1
area 0.0.0.0
network 1.1.1.9 0.0.0.0
network 10.1.1.0 0.0.0.3
network 10.3.1.0 0.0.0.3
#
static-lsp ingress RAtoRD destination 4.4.4.9 32 nexthop 10.1.1.2 out-label 20
static-lsp egress RDtoRA incoming-interface GigabitEthernet2/0/0 in-label 60
#
return
lConfiguration file of LSRB
#
sysname LSRB
#
mpls lsr-id 2.2.2.9
mpls
#
interface GigabitEthernet1/0/0
ip address 10.1.1.2 255.255.255.252
mpls
#
interface GigabitEthernet2/0/0
ip address 10.2.1.1 255.255.255.252
mpls
#
interface LoopBack1
ip address 2.2.2.9 255.255.255.255
#
ospf 1
area 0.0.0.0
network 2.2.2.9 0.0.0.0
network 10.1.1.0 0.0.0.3
network 10.2.1.0 0.0.0.3
#
static-lsp transit RAtoRD incoming-interface GigabitEthernet1/0/0 in-label 20
nexthop 10.2.1.2 out-label 40
#
return
lConfiguration file of LSRC
#
sysname LSRC
#
mpls lsr-id 3.3.3.9
mpls
#
interface GigabitEthernet1/0/0
ip address 10.3.1.2 255.255.255.252
mpls
#
interface GigabitEthernet2/0/0
ip address 10.4.1.1 255.255.255.252
mpls
#
interface LoopBack1
ip address 3.3.3.9 255.255.255.255
#
ospf 1
area 0.0.0.0
network 3.3.3.9 0.0.0.0
Huawei AR2200 Series Enterprise Routers
Configuration Guide - MPLS 1 Static LSPs Configuration
Issue 01 (2012-01-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
13