Huawei AR1200 Series - Networking Requirements

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.
Figure 1-1 Networking diagram of configuring static LSPs
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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:
l IP addresses of the interfaces, OSPF process ID, and area ID
l Name of the static LSP
Huawei AR1200 Series Enterprise Routers
Configuration Guide - MPLS 1 Static LSPs Configuration
Issue 01 (2011-12-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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