I´ve got this message when configuring a vpls between c7206(ios15) and 3750me, below follows my config:
CE===(f1/0/2)c3750 (f1/0/1)=====(g0/1.100)c7206(g0/2.101)===CE
c3750:
!
system mtu routing 1500
!
interface Loopback0
ip address 1.1.1.1 255.255.255.255
ip ospf network point-to-point
!
...
!
interface FastEthernet1/0/1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 100
switchport mode trunk
!
interface FastEthernet1/0/2
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 101
switchport mode trunk
!
...
!
interface Vlan100
ip address 10.0.0.1 255.255.255.0
mpls label protocol ldp
mpls ip
!
interface Vlan101
no ip address
xconnect 2.2.2.2 666 encapsulation mpls
!
router ospf 100
router-id 1.1.1.1
log-adjacency-changes
network 1.1.1.1 0.0.0.0 area 0
network 10.0.0.0 0.0.0.255 area 0
!
mpls ldp router-id Loopback0 force
c7206:
interface GigabitEthernet0/1.100
encapsulation dot1Q 100
ip address 10.0.0.2 255.255.255.0
no snmp trap link-status
ip ospf mtu-ignore
mpls ip
!
interface GigabitEthernet0/2.101
encapsulation dot1Q 101
no snmp trap link-status
no cdp enable
xconnect 1.1.1.1 666 encapsulation mpls
!
interface Loopback1
ip address 2.2.2.2 255.255.255.255
ip ospf network point-to-point
!
router ospf 100
log-adjacency-changes
network 2.2.2.2 0.0.0.0 area 0
network 10.0.0.0 0.0.0.255 area 0
!
mpls ldp router-id Loopback1 force
c3750#sh mpls l2transport vc det
Local interface: Vl101 up, line protocol up, Eth VLAN 101 up
Destination address: 2.2.2.2, VC ID: 666, VC status: down
Output interface: if-?(0), imposed label stack {}
Preferred path: not configured
Default path: active
Next hop: Invalid MOI
Create time: 00:52:45, last status change time: 00:00:04
Signaling protocol: LDP, peer 2.2.2.2:0 up
MPLS VC labels: local unassigned, remote 18
Group ID: local unknown, remote 0
MTU: local unknown, remote 1500
Remote interface description:
Sequencing: receive disabled, send disabled
VC statistics:
packet totals: receive 0, send 0
byte totals: receive 0, send 0
packet drops: receive 0, send 0
c3750# sh logg
00:54:11: %LDP-5-NBRCHG: LDP Neighbor 2.2.2.2:0 (1) is UP
00:54:17: ATOM: Can not get imposition rewrite string
00:54:33: ATOM: Can not get imposition rewrite string
00:54:36: tagcon: background scan: Start
00:54:36: tagcon: background scan: End
00:54:40: %LDP-5-CLEAR_NBRS: Clear LDP neighbors (*) by vty0 (10.0.0.2)
00:54:40: %LDP-5-NBRCHG: LDP Neighbor 2.2.2.2:0 (1) is DOWN (User cleared session manually)
00:54:40: AToM MGR [2.2.2.2, 666]: Delete remote vc label binding
00:54:40: AToM MGR [2.2.2.2, 666]: Update local vc label binding
00:54:45: %LDP-5-NBRCHG: LDP Neighbor 2.2.2.2:0 (2) is UP
00:54:45: AToM MGR [2.2.2.2, 666]: Advertise local vc label binding
00:54:45: AToM MGR [2.2.2.2, 666]: Remote end up, inst 2
00:54:45: AToM MGR [2.2.2.2, 666]: Validate vc, activating data plane
00:54:45: AToM MGR [2.2.2.2, 666]: Receive SSM dataplane up notification
00:54:45: AToM MGR [2.2.2.2, 666]: Dataplane activated
00:54:45: AToM MGR [2.2.2.2, 666]: Remote end down, vc is down
00:54:45: AToM MGR [2.2.2.2, 666]: Unprovision SSM segment
00:54:45: AToM MGR [2.2.2.2, 666]: Remote end up, inst 2
00:54:45: AToM MGR [2.2.2.2, 666]: Validate vc, activating data plane
00:54:45: AToM MGR [2.2.2.2, 666]: Receive SSM dataplane up notification
00:54:45: AToM MGR [2.2.2.2, 666]: Dataplane activated
00:54:47: ldp: ldp start; tbl 0
00:54:48: ATOM: Can not get imposition rewrite string
00:54:48: AToM MGR [2.2.2.2, 666]: Local end down, vc is down
00:54:48: AToM MGR [2.2.2.2, 666]: Unprovision SSM segment
00:54:48: AToM MGR [2.2.2.2, 666]: Label 18 free for reuse in 201 sec
00:54:48: AToM MGR [2.2.2.2, 666]: Label 18 released while on hold, reduce hold time to 21 sec
c7206#sh mpls l2transport vc det
Local interface: Gi0/2.101 up, line protocol up, Eth VLAN 101 up
Destination address: 1.1.1.1, VC ID: 666, VC status: down
LFIB entry present
Output interface: unknown, imposed label stack {}
Create time: 01:01:06, last status change time: 00:00:09
Signaling protocol: LDP, peer 1.1.1.1:0 up
MPLS VC labels: local 20, remote unassigned
Group ID: local 0, remote unknown
MTU: local 1500, remote unknown
Remote interface description:
Sequencing: receive disabled, send disabled
VC statistics:
packet totals: receive 0, send 0
byte totals: receive 0, send 0
packet drops: receive 0, send 0
c7206#show logg
*Mar 19 21:18:25.303: AToM MGR [1.1.1.1, 666]: Remote end up
*Mar 19 21:18:25.303: AToM MGR [1.1.1.1, 666]: Validate vc, activating data plane
*Mar 19 21:18:25.303: AToM MGR [1.1.1.1, 666]: Remote end down, vc is down
*Mar 19 21:18:25.303: AToM SMGR [1.1.1.1, 666]: Processing imposition update, vc_handle 5297220, update_action 1, remote_vc_label 19
*Mar 19 21:18:25.303: AToM SMGR [1.1.1.1, 666]: Imposition Programmed, Output Interface: Gi0/1.100
*Mar 19 21:18:25.303: AToM SMGR [1.1.1.1, 666]: Processing disposition update, vc_handle 5297220, update_action 1, local_vc_label 20
*Mar 19 21:18:25.303: AToM SMGR [1.1.1.1, 666]: Processing imposition update, vc_handle 5297220, update_action 0, remote_vc_label 19
*Mar 19 21:18:25.303: AToM SMGR [1.1.1.1, 666]: Imposition Disabled
*Mar 19 21:18:25.303: AToM SMGR [1.1.1.1, 666]: Processing disposition update, vc_handle 5297220, update_action 0, local_vc_label 20
*Mar 19 21:18:25.303: AToM SMGR: Processing TFIB event for 1.1.1.1
*Mar 19 21:18:25.303: AToM SMGR: TFIB scan started
*Mar 19 21:18:25.303: AToM SMGR: TFIB scan complete
