Hi, I've been trying to solve this problem for a quite long time and I gave up. I need some help ;)
I have two devices on my desk: C6500, sup720, pfc3c, msfc3 and C7600, rsp720, pfc3cxl, msfc4. Both are connected with a wire. Both ports are switchports with allowed vlan 2326. MPLS enabled. ping works
C6500 configuration:
mpls label protocol ldp
mpls traffic-eng tunnels
interface GigabitEthernet6/2
description to_C7600
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 3425
switchport trunk allowed vlan 2326,3425
switchport mode trunk
mtu 9216
ip arp inspection trust
load-interval 30
no cdp enable
spanning-tree vlan 3425 cost 10000
ip dhcp snooping trust
interface Vlan2326
description to_C7600_vlan
ip address 10.4.253.15 255.255.255.254
ip ospf mtu-ignore
ip ospf 65405 area 0
mpls traffic-eng tunnels
mpls bgp forwarding
mpls ip
ip rsvp bandwidth
router ospf 65405
router-id 10.4.100.12
network 10.4.100.12 0.0.0.0 area 0
mpls ldp sync
mpls traffic-eng router-id Loopback69
mpls traffic-eng area 0
mpls traffic-eng interface Vlan2327 area 0
mpls traffic-eng interface Vlan2326 area 0
interface Loopback69
ip address 10.4.100.12 255.255.255.255
#ping 10.4.8.8 source 10.4.100.12
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.4.8.8, timeout is 2 seconds:
Packet sent with a source address of 10.4.100.12
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms
#sh mpls interfaces
Interface IP Tunnel BGP Static Operational
Vlan2326 Yes (ldp) Yes Yes No Yes
Tunnel102 No No No No No
interface Tunnel102
description tunnel_to_C7600_10_4_8_8
ip unnumbered Loopback69
tunnel source Loopback69
tunnel mode mpls traffic-eng
tunnel destination 10.4.8.8
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng path-option 10 dynamic
no routing dynamic
ip rsvp bandwidth 8000
#sh mpls traffic-eng tunnels tunnel 102
Name: tunnel_to_C7600_10_4_8_8 (Tunnel102) Destination: 10.4.8.8
Status:
Admin: up Oper: down Path: not valid Signalling: Down
path option 10, type dynamic
Config Parameters:
Bandwidth: 0 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute announce: enabled LockDown: disabled Loadshare: 0 [0] bw-based
auto-bw: disabled
Shortest Unconstrained Path Info:
Path Weight: 1 (TE)
Explicit Route: 10.4.253.15 10.4.253.14 10.4.8.8
History:
Tunnel:
Time since created: 1 hours, 12 minutes
Time since path change: 7 seconds
Number of LSP IDs (Tun_Instances) used: 441
Prior LSP: [ID: 441]
ID: path option 10 [441]
Removal Trigger: path error
Last Error: RSVP:: Path Error from 10.4.253.14: Routing Problem (code 24, value 4, flags 0)
C7600 configuration:
mpls label protocol ldp
mpls traffic-eng tunnels
#sh ip vrf
Name Default RD Interfaces
MPLS_back 65203:1 Lo70
Vl2326
Tu102
interface GigabitEthernet1/1
description to_C6500
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 2326
switchport mode trunk
mtu 9216
no cdp enable
interface Vlan2326
description to_C6500
ip vrf forwarding MPLS_back
ip address 10.4.253.14 255.255.255.254
ip ospf mtu-ignore
ip ospf 65203 area 0
mpls ip
mpls traffic-eng tunnels
mpls traffic-eng administrative-weight 100
mpls bgp forwarding
ip rsvp bandwidth
router ospf 65203 vrf MPLS_back
router-id 10.4.8.8
network 10.4.8.8 0.0.0.0 area 0
network 10.4.100.222 0.0.0.0 area 0
mpls traffic-eng router-id Loopback70
mpls traffic-eng area 0
mpls traffic-eng interface Vlan2326 area 0
!
interface Loopback70
ip vrf forwarding MPLS_back
ip address 10.4.8.8 255.255.255.255
#ping vrf MPLS_back 10.4.100.12 source 10.4.8.8
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.4.100.12, timeout is 2 seconds:
Packet sent with a source address of 10.4.8.8
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms
#sh mpls interfaces vrf MPLS_back
Interface IP Tunnel BGP Static Operational
VRF MPLS_back:
Tunnel100 No No No No No
Vlan2326 Yes (ldp) Yes Yes No Yes
Tunnel102 No No No No No
interface Tunnel102
description tunnel_to_C6500_10_4_100_12
ip vrf forwarding MPLS_back
ip unnumbered Loopback70
tunnel mode mpls traffic-eng
tunnel destination 10.4.100.12
tunnel mpls traffic-eng priority 7 7
tunnel mpls traffic-eng bandwidth 8000
tunnel mpls traffic-eng path-option 100 dynamic
sh mpls traffic-eng tunnels tunnel 102
Name: tunnel_to_C6500_10_4_100_12 (Tunnel102) Destination: 10.4.100.12
Status:
Admin: up Oper: down Path: not valid Signalling: Down
path option 100, type dynamic
Config Parameters:
Bandwidth: 8000 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: disabled LockDown: disabled Loadshare: 8000 [0] bw-based
auto-bw: disabled
Shortest Unconstrained Path Info:
Path Weight: 100 (TE)
Explicit Route: 10.4.253.14 10.4.253.15 10.4.100.12
History:
Tunnel:
Time since created: 1 hours, 29 minutes
Number of LSP IDs (Tun_Instances) used: 544
any ideas ?
