Step 2 Configure the basic MPLS capability, set up the LDP peers, and enable MPLS TE, Resource
Reservation Protocol-TE (RSVP-TE), and Constraint Shortest Path First (CSPF).
# In this example, RSVP-TE is used as the signaling protocol. Enable global MPLS TE and
RSVP-TE on the PEs and P along the TE tunnel. Configure CSPF on the tunnel ingress. Enable
MPLS TE and RSVP-TE on the interfaces along the tunnel. Configure the LDP remote peers
on PEs to transmit the private network routes.
# Configure PE1.
[PE1] mpls lsr-id 1.1.1.9
[PE1] mpls
[PE1-mpls] mpls te
[PE1-mpls] mpls rsvp-te
[PE1-mpls] mpls te cspf
[PE1-mpls] quit
[PE1] interface vlanif 7
[PE1-Vlanif7] mpls
[PE1-Vlanif7] mpls te
[PE1-Vlanif7] mpls rsvp-te
[PE1-Vlanif7] quit
[PE1] mpls ldp
[PE1-mpls-ldp] quit
[PE1] mpls ldp remote-peer 2.2.2.9
[PE1-mpls-ldp-remote-2.2.2.9] remote-ip 2.2.2.9
[PE1-mpls-ldp-remote-2.2.2.9] quit
[PE1] mpls ldp remote-peer 3.3.3.9
[PE1-mpls-ldp-remote-3.3.3.9] remote-ip 3.3.3.9
[PE1-mpls-ldp-remote-3.3.3.9] quit
# The configuration procedures of PE2 and PE3 are similar to the configuration procedure of
PE1.
# Configure the P.
[P] mpls lsr-id 4.4.4.9
[P] mpls
[P-mpls] mpls te
[P-mpls] mpls rsvp-te
[P-mpls] quit
[P] interface vlanif 7
[P-Vlanif7] mpls
[P-Vlanif7] mpls te
[P-Vlanif7] mpls rsvp-te
[P-Vlanif7] quit
[P] interface vlanif 5
[P-Vlanif5] mpls
[P-Vlanif5] mpls te
[P-Vlanif5] mpls rsvp-te
[P-Vlanif5] quit
[P] interface vlanif 6
[P-Vlanif6] mpls
[P-Vlanif6] mpls te
[P-Vlanif6] mpls rsvp-te
[P-Vlanif6] quit
# Run the display mpls ldp session command on the PEs, and you can see that LDP peers are
set up between PE1 and PE2 and between PE1 and PE3.
# Take the display on PE1 as an example:
[PE1] display mpls ldp session
LDP Session(s) in Public Network
Codes: LAM(Label Advertisement Mode), SsnAge Unit(DDDD:HH:MM)
A '*' before a session means the session is being deleted.
------------------------------------------------------------------------------
Quidway S7700 Smart Routing Switch
Configuration Guide - VPN 1 VPN Tunnel Management Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
46
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