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[UPE-Tunnel1/0/0]
ip address unnumbered interface loopback 0
[UPE-Tunnel1/0/0]
tunnel-protocol mpls te
[UPE-Tunnel1/0/0]
destination 4.4.4.4
[UPE-Tunnel1/0/0]
mpls te tunnel-id 100
[UPE-Tunnel1/0/0]
mpls te path explicit-path main-path
[UPE-Tunnel1/0/0]
mpls te backup hot-standby
[UPE-Tunnel1/0/0]
mpls te path explicit-path hsb-path secondary
[UPE-Tunnel1/0/0]
mpls te commit
# Configure the SPE.
[SPE]
interface Tunnel1/0/0
[SPE-Tunnel1/0/0]
ip address unnumbered interface loopback 0
[SPE-Tunnel1/0/0]
tunnel-protocol mpls te
[SPE-Tunnel1/0/0]
destination 1.1.1.1
[SPE-Tunnel1/0/0]
mpls te tunnel-id 100
[SPE-Tunnel1/0/0]
mpls te path explicit-path main-path
[SPE-Tunnel1/0/0]
mpls te backup hot-standby
[SPE-Tunnel1/0/0]
mpls te path explicit-path hsb-path secondary
[SPE-Tunnel1/0/0]
mpls te commit
8.
Configure dynamic BFD for CR-LSP.
# Configure the UPE.
[UPE-Tunnel1/0/0]
mpls te bfd enable
[UPE-Tunnel1/0/0]
quit
[UPE]
bfd
[UPE-bfd]
mpls-passive
[UPE-bfd]
quit
# Configure the SPE.
[SPE-Tunnel1/0/0]
mpls te bfd enable
[SPE-Tunnel1/0/0]
quit
[SPE]
bfd
[SPE-bfd]
mpls-passive
[SPE-bfd]
quit
9.
Enable bit-error-triggered RSVP-TE tunnel switching and set the thresholds for bit-error-
triggered protection switching and revertive switching.
# Configure the UPE.
[UPE]
interface Tunnel1/0/0
[UPE-Tunnel1/0/0]
mpls te bit-error-detection
[UPE-Tunnel1/0/0]
mpls te bit-error-detection threshold switch 3 4 resume 2 5
# Configure the SPE.
[SPE]
interface Tunnel1/0/0
[SPE-Tunnel1/0/0]
mpls te bit-error-detection
[SPE-Tunnel1/0/0]
mpls te bit-error-detection threshold switch 3 4 resume 2 5
10. Specify the reverse tunnel for each unidirectional RSVP-TE tunnel.
# Configure the UPE.
[UPE-Tunnel1/0/0]
mpls te reverse-lsp protocol rsvp-te ingress-lsr-id 4.4.4.4
tunnel-id 100
[UPE-Tunnel1/0/0]
mpls te commit
[UPE-Tunnel1/0/0]
quit
# Configure the SPE.
[SPE-Tunnel1/0/0]
mpls te reverse-lsp protocol rsvp-te ingress-lsr-id 1.1.1.1
tunnel-id 100
[SPE-Tunnel1/0/0]
mpls te commit
[SPE-Tunnel1/0/0]
quit
11. Verify the configuration.
In this example, the BER detected by GE1/0/0 on the UPE exceeding the threshold for
triggering an alarm indicating that a bit error event has occurred. As a result, GE1/0/0 goes
HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
10 Bit-Error-Triggered Protection Switching Configuration
Issue 02 (2014-09-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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