Dear Sir!
We use such topology:
CE1-PE1-P1-P2-PE2-CE2
...................|......|
...................P3-P4
CE1 and CE2 are both in the same VPN.
We want to make P1-P2 link protection.
1. Primary tunnel (Tu1 on PE1) are going through
PE1-P1-P2-PE2, its configuration:
*************************PE1************************
interface Tunnel1
description to PE2
ip unnumbered Loopback0
tunnel destination <PE2-loop0-ip>
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng priority 7 7
tunnel mpls traffic-eng path-option 1 explicit name PE1-P1-P2-PE2
tunnel mpls traffic-eng fast-reroute
tunnel mpls traffic-eng auto-bw frequency 300
!
****************************************************
2. Backup tunnel (Tu10 on P1) are going through
P1-P3-P4-P2, its configuration:
*************************P1*************************
!
interface Tunnel10
description Backup to P2
ip unnumbered Loopback0
tag-switching ip
tunnel destination <P2-loop0-ip>
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng priority 1 1
tunnel mpls traffic-eng path-option 1 explicit name P1-P3-P4-P2
tunnel mpls traffic-eng auto-bw frequency 300
!
interface GigabitEthernet0/3
ip address ............
description to P2
mpls traffic-eng tunnels
mpls traffic-eng backup-path Tunnel10
tag-switching ip
ip rsvp bandwidth 116250 116250 sub-pool 15500
!
****************************************************
3. P2:
!
tag-switching tdp discovery directed-hello accept
!
****************************************************
But when P1-P2 link line protocol become DOWN,
packets are going through Tu10, but its seems,
that P2 dropped this packets, because PE2
not show anything (for debug mpls packets).
And also line protocol on primary tunnel (Tu1 on PE1) changed state to down after ~180 sec.
Can you help to me to resolve such problem?
What is wrong with the configuration above?
Best regards,
Maxim Denisov
