02-14-2012 02:17 AM
Dear collegues
We have Cisco 7604 and ASR 9000 connected together via 10GE interface. Our 7604 has ES+ core-facing module and not ES+ on AC side.
We are implementing EoMPLS between them but VC doesn't come up.
Does anyone have some consideration about what the problem is?
We have following connections:
Catalyst 3750 <----> Ge 1/2 Cisco 7604 TE 4/4 <----> Te0/0/0/0 ASR9000 Te0/0/0/1 <----> ME 3600
Here is the output os show ... command
7604#sh module
Mod Ports Card Type Model
--- ----- -------------------------------------- ------------------ -----------
1 2 Route Switch Processor 720 (Active) RSP720-3C-GE
2 4 CEF720 4 port 10-Gigabit Ethernet WS-X6704-10GE
3 24 CEF720 24 port 1000mb SFP WS-X6724-SFP
4 4 7600 ES+T 76-ES+T-4TG
7604# sh mpls l2transport vc 2 detail
Local interface: Gi1/2.528 up, line protocol up, Eth VLAN 528 up
Destination address: 10.1.0.1, VC ID: 2, VC status: down
Output interface: Te4/4, imposed label stack {16002}
Preferred path: not configured
Default path: active
Next hop: 10.1.1.1
Create time: 04:14:29, last status change time: 00:22:04
Signaling protocol: LDP, peer 10.1.0.1:0 up
Targeted Hello: 10.1.0.2(LDP Id) -> 10.1.0.1, LDP is UP
Status TLV support (local/remote) : enabled/supported
LDP route watch : enabled
Label/status state machine : established, LruRrd
Last local dataplane status rcvd: No fault
Last BFD dataplane status rcvd: Not sent
Last local SSS circuit status rcvd: No fault
Last local SSS circuit status sent: DOWN(PW-tx-fault)
Last local LDP TLV status sent: No fault
Last remote LDP TLV status rcvd: DOWN(PW-tx-fault)
Last remote LDP ADJ status rcvd: No fault
MPLS VC labels: local 17, remote 16002
PWID: 20639
Group ID: local 0, remote 67109120
MTU: local 9202, remote 9202
Remote interface description: TenGigE0_0_0_1.100
Sequencing: receive disabled, send disabled
Control Word: On (configured: autosense)
SSO Descriptor: 10.1.0.1/2, local label: 17
SSM segment/switch IDs: 8353/12403 (used), PWID: 20639
VC statistics:
transit packet totals: receive 0, send 2
transit byte totals: receive 0, send 180
transit packet drops: receive 0, seq error 0, send 0
RP/0/RSP0/CPU0:ASR9000#sh l2vpn xconnect detail
Tue Feb 14 08:51:13.163 UTC
Group Backbone1, XC to7604, state is down; Interworking none
AC: TenGigE0/0/0/1.100, state is up
Type VLAN; Num Ranges: 1
VLAN ranges: [100, 100]
MTU 9202; XC ID 0x840001; interworking none
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0
drops: illegal VLAN 0, illegal length 0
PW: neighbor 10.1.0.2, PW ID 2, state is down ( remote standby )
PW class dynamic_mpls, XC ID 0xc0000001
Encapsulation MPLS, protocol LDP
Source address 10.1.0.1
PW type Ethernet VLAN, control word enabled, interworking none
PW backup disable delay 0 sec
Sequencing not set
PW Status TLV in use
MPLS Local Remote
------------ ------------------------------ -----------------------------
Label 16002 17
Group ID 0x4000100 0x0
Interface TenGigE0/0/0/1.100 unknown
MTU 9202 9202
Control word enabled enabled
PW type Ethernet VLAN Ethernet VLAN
VCCV CV type 0x2 0x12
(LSP ping verification) (LSP ping verification)
VCCV CC type 0x7 0x6
(control word)
(router alert label) (router alert label)
(TTL expiry) (TTL expiry)
------------ ------------------------------ -----------------------------
Incoming Status (PW Status TLV):
Status code: 0x0 (Up) in Notification message
Outgoing Status (PW Status TLV):
Status code: 0x10 (PW Down) in Notification message
MIB cpwVcIndex: 3221225473
Create time: 14/02/2012 08:26:46 (00:24:26 ago)
Last time status changed: 14/02/2012 08:27:57 (00:23:15 ago)
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0
02-15-2012 06:38 AM
Yuriy,
In addition to these commands, you should review the MPLS Label (Outer Label) assigned by the MPLS network to the Xconnect to determine if it is using LDP or if is using a TE-Tunnel, MLS CEF (on the 7600) and the output of debug commands for the xconnect.
Note: Depending on the amount of Xconnects in your network, it's recommended to perform conditional debugging to limit the amount of debug data (i.e. debug interface Te4/4, followed by specific debug commands).
On the 7600:
- show mpls forwarding table | i 16002
- show mls cef mpls labels 16002
- show mls cef adjacency entry 16002 detail
- debug interface Te4/4
- debug mpls l2transport vc status event
- debug mpls l2transport vc status fm
Additional details available at :
http://www.cisco.com/en/US/docs/routers/7600/install_config/ES40_config_guide/es40_chap6.html
Let us know if you'd prefer to continue troubleshooting with you.
02-20-2012 03:30 AM
Rurick, thank you for your answer!
We solved the problem.
I used static routing to reach loopbacks, and when I configured OSPF between 7604 and asr9k VC came up.
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