Huawei AR1200 Series Configuration Manual page 328

Huawei AR1200 Series Enterprise Routers
Configuration Guide - MPLS
using same path
# Run the ping lsp te command to check the connection of the backup CR-LSP.
[PE1] ping lsp te tunnel 0/0/0 hot-standby
LSP PING FEC: TE TUNNEL IPV4 SESSION QUERY Tunnel0/0/0 : 100
CTRL_C to break
--- FEC: TE TUNNEL IPV4 SESSION QUERY Tunnel0/0/0 ping statistics ---
# Run the tracert lsp te command to trace the path of the backup CR-LSP.
[PE1] tracert lsp te tunnel 0/0/0 hot-standby
LSP Trace Route FEC: TE TUNNEL IPV4 SESSION QUERY Tunnel0/0/0 , press CTRL_C to
break.
TTL
0
1
2
Step 8 Verify the configuration.
Connect two interfaces, Port 1 and Port 2, on a tester to PE1 and PE2 respectively. On Port 1,
inject MPLS traffic and send traffic to Port 2. After the cable attached to GE 2/0/0 on PE1 or P1
is pulled out, fault recovery is performed at millisecond level. Run the display mpls te hot-
standby state interface tunnel 0/0/0 command on PE1. You can see that traffic has switched
to the backup CR-LSP.
[PE1] display mpls te hot-standby state interface tunnel 0/0/0
----------------------------------------------------------------
Verbose information about the Tunnel0/0/0 hot-standby state
----------------------------------------------------------------
session id
main LSP token
hot-standby LSP token
HSB switch result
WTR remain time
using same path
After attaching the cable into GE 2/0/0, you can see that traffic switches back to the primary
CR-LSP in 15 seconds.
After you remove the cable from GE 2/0/0 on PE1 or P1 and the cable from GE 2/0/0 on PE2
or P2, the tunnel interface goes Down and then Up. This means that the best-effort has been set
up successfully, allowing traffic to switch to the best-effort LSP.
[PE1] display mpls te tunnel-interface tunnel 0/0/0
Issue 01 (2012-04-20)
Reply from 3.3.3.3: bytes=100 Sequence=1 time = 380 ms
Reply from 3.3.3.3: bytes=100 Sequence=2 time = 130 ms
Reply from 3.3.3.3: bytes=100 Sequence=3 time = 70 ms
Reply from 3.3.3.3: bytes=100 Sequence=4 time = 120 ms
Reply from 3.3.3.3: bytes=100 Sequence=5 time = 120 ms
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 70/164/380 ms
Replier
10.3.1.2
3.3.3.3
----------------------------------------------------------------
----------------------------------------------------------------
Tunnel State Desc :
Active LSP :
Session ID :
Ingress LSR ID :
Admin State :
Primary LSP State
Main LSP State
Hot-Standby LSP State
Main LSP State
Best-Effort LSP State
Main LSP State
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
: no
Time Type Downstream
Ingress 10.3.1.2/[13313 ]
90 ms Transit 10.5.1.2/[3 ]
130 ms Egress
: 100
: 0x0
: 0x100201b
: Hot-standby LSP
: 15s
: no
Tunnel0/0/0
UP
Best-Effort LSP
100
4.4.4.4 Egress LSR ID:
UP Oper State
: DOWN
: SETTING UP
: DOWN
: SETTING UP
: UP
: READY
3 MPLS TE Configuration
data bytes, press
3.3.3.3
: UP
LSP ID : 32773
317