Huawei AR1200 Series - Page 116

# After the configuration is complete, run the display mpls lsp command on LSRA to view the
established LSP.
[LSRA] display mpls lsp
-------------------------------------------------------------------------------
LSP Information: LDP LSP
-------------------------------------------------------------------------------
FEC In/Out Label In/Out IF Vrf Name
1.2.0.1/32 NULL/3 -/Eth1/0/0
1.2.0.1/32 1024/3 -/Eth1/0/0
The preceding command output shows that by default, LDP does not establish the inter-area
LSPs from LSRA to LSRB and from LSRA to LSRC.
Step 5 Configure LDP Extension for Inter-Area LSP.
# Run the longest-match command on LSRA to configure LDP to search for a route according
to the longest match rule to establish an inter-area LDP LSP.
[LSRA] mpls ldp
[LSRA-mpls-ldp] longest-match
[LSRA-mpls-ldp] quit
Step 6 Verify the configuration.
# After the configuration is complete, run the display mpls lsp command on LSRA to view the
established LSP.
[LSRA] display mpls lsp
-------------------------------------------------------------------------------
LSP Information: LDP LSP
-------------------------------------------------------------------------------
FEC In/Out Label In/Out IF Vrf Name
1.2.0.1/32 NULL/3 -/Eth1/0/0
1.2.0.1/32 1024/3 -/Eth1/0/0
1.3.0.1/32 NULL/1025 -/Eth1/0/0
1.3.0.1/32 1025/1025 -/Eth1/0/0
1.3.0.2/32 NULL/1026 -/Eth1/0/0
1.3.0.2/32 1026/1026 -/Eth1/0/0
The preceding command output shows that LDP establishes the inter-area LSPs from LSRA to
LSRB and from LSRA to LSRC.
----End
Configuration Files
l Configuration file of LSRA
#
sysname LSRA
#
mpls lsr-id 1.1.0.1
mpls
#
mpls ldp
longest-match
#
isis 1
is-level level-2
network-entity 20.0010.0100.0001.00
#
interface Ethernet1/0/0
ip address 10.1.1.1 255.255.255.0
isis enable 1
Huawei AR1200 Series Enterprise Routers
Configuration Guide - MPLS 2 MPLS LDP Configuration
Issue 01 (2011-12-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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