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DES-7200 Configuration Guide Chapter 3 MPLS Reliability Configuration
3-28
# Display LDP GR configurations on PE1.
DES-7200#show mpls ldp graceful-restart
Default VRF:
LDP Graceful Restart is enabled
Neighbor Liveness Timer: 120 seconds
Max Recovery Time: 120 seconds
Forwarding State Holding Time: 300 seconds
Down Neighbor Database (1 records):
Peer LDP Ident: 192.168.0.2:0; Local LDP Ident: 192.168.0.1:0
Status: recovering (86 seconds left)
Address list contains 3 addresses:
192.168.0.2 192.168.1.2 192.168.2.1
Graceful Restart-enabled Sessions:
Peer LDP Ident: 192.168.0.2:0, State: estab
# Display BGP GR configurations on PE1.
DES-7200#show ip bgp vpnv4 all neighbor
BGP neighbor is 192.168.0.3, remote AS 200, internal link
BGP version 4, remote router ID 192.168.0.3
BGP state = Established, up for 02:49:47
Last read 00:00:47, hold time is 180, keepalive interval is 60 seconds
Neighbor capabilities:
Route refresh: advertised and received (new)
Address family VPNv4 Unicast: advertised and received
Graceful Restart Capability: advertised and received
Remote Restart timer is 120 seconds
Address families preserved by peer:
VPNv4 Unicast
3.2 MPLS BFD Configuration
3.2.1 Introduction to MPLS BFD
MPLS BFD is accomplished on the basis of the standard of "BFD For MPLS LSPs" defined by
IETF. It describes a method to detect MPLS LSP, and constitutes a component of BFD
application. Detailed introductions about BFD are given in "BFD Configuration Guideline".
3.2.1.1 Overview
In MPLS network, the following mechanisms are generally used to detect LSP faults: