Hi All,
I have a strange issue where my MPLS pseudo-wire is not using my preferred TE path in one direction.
The TE tunnel is up and valid from what I can see in both directions.
R1
Local interface: Te4/2.3560 up, line protocol up, Eth VLAN 3560 up
Interworking type is Ethernet
Destination address: x.x.x.5, VC ID: 133, VC status: up
Output interface: Vl279, imposed label stack {313}
Preferred path: Tunnel133, no route
Default path: active
Next hop: x.x.x.214
Load Balance: none
Flow Label: Disabled
Create time: 12w5d, last status change time: 12w5d
Signaling protocol: LDP, peer x.x.x.5:0 up
Targeted Hello: x.x.x.16(LDP Id) -> x.x.x.5
Status TLV support (local/remote) : enabled/supported
Label/status state machine : established, LruRru
Last local dataplane status rcvd: no fault
Last local SSS circuit status rcvd: no fault
Last local SSS circuit status sent: no fault
Last local LDP TLV status sent: no fault
Last remote LDP TLV status rcvd: no fault
MPLS VC labels: local 89, remote 313
Group ID: local 0, remote 0
MTU: local 9216, remote 9216
Remote interface description: CC VLAN 3560
Sequencing: receive disabled, send disabled
SSO Descriptor: x.x.x.5/133, local label: 89
SSM segment/switch IDs: 16387/12290 (used), PWID: 12290
VC statistics:
packet totals: receive 1520332890679, send 471021710277
byte totals: receive 2017804409049313, send 121551579560568
packet drops: receive 0, seq error 0, send 17
Name: X (Tunnel133) Destination: x.x.x.5
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type explicit path1 (Basis for Setup, path weight 1)
Config Parameters:
Bandwidth: 50000 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute announce: disabled LockDown: disabled Loadshare: 50000 [40000] bw-based
auto-bw: disabled
Active Path Option Parameters:
State: explicit path option 10 is active
BandwidthOverride: disabled LockDown: disabled Verbatim: disabled
InLabel : -
OutLabel : Vlan279, implicit-null
Next Hop : x.x.x.214
RSVP Signalling Info:
Src x.x.x.16, Dst x.x.x.5, Tun_Id 133, Tun_Instance 2276
RSVP Path Info:
My Address: x.x.x.215
Explicit Route: x.x.x.214 x.x.x.5
Record Route: NONE
Tspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
Shortest Unconstrained Path Info:
Path Weight: 1 (TE)
Explicit Route: x.x.x.214 x.x.x.5
History:
Tunnel:
Time since created: 89 days, 19 hours, 37 minutes
Time since path change: 1 days, 12 hours, 20 minutes
Number of LSP IDs (Tun_Instances) used: 2276
Current LSP: [ID: 2276]
Uptime: 1 days, 12 hours, 20 minutes
Prior LSP: [ID: 107]
ID: path option unknown
Removal Trigger: path error
R2
Local interface: Te3/4.3560 up, line protocol up, Eth VLAN 3560 up
Interworking type is Ethernet
Destination address: x.x.x.16, VC ID: 133, VC status: up
Output interface: Tu133, imposed label stack {89}
Preferred path: Tunnel133, active
Default path: ready
Next hop: point2point
Create time: 12w5d, last status change time: 12w5d
Signaling protocol: LDP, peer x.x.x.16:0 up
Targeted Hello: x.x.x.5(LDP Id) -> x.x.x.16, LDP is UP
Status TLV support (local/remote) : enabled/supported
LDP route watch : enabled
Label/status state machine : established, LruRru
Last local dataplane status rcvd: No fault
Last local SSS circuit status rcvd: No fault
Last local SSS circuit status sent: No fault
Last local LDP TLV status sent: No fault
Last remote LDP TLV status rcvd: No fault
Last remote LDP ADJ status rcvd: No fault
MPLS VC labels: local 313, remote 89
Group ID: local 0, remote 0
MTU: local 9216, remote 9216
Remote interface description: CC VLAN 3560
Sequencing: receive disabled, send disabled
Control Word: Off (configured: autosense)
SSO Descriptor: x.x.x.16/133, local label: 313
SSM segment/switch IDs: 32792/16390 (used), PWID: 8210
VC statistics:
transit packet totals: receive 938605284634, send 1516903341177
transit byte totals: receive 255381364776766, send 2013576720136283
transit packet drops: receive 0, seq error 0, send 0
Name: X (Tunnel133) Destination: x.x.x.16
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type explicit path1 (Basis for Setup, path weight 1)
Config Parameters:
Bandwidth: 50000 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute announce: disabled LockDown: disabled Loadshare: 50000 bw-based
auto-bw: disabled
Active Path Option Parameters:
State: explicit path option 10 is active
BandwidthOverride: disabled LockDown: disabled Verbatim: disabled
InLabel : -
OutLabel : Vlan279, implicit-null
Next Hop : x.x.x.215
RSVP Signalling Info:
Src x.x.x.5, Dst x.x.x.16, Tun_Id 133, Tun_Instance 2279
RSVP Path Info:
My Address: x.x.x.214
Explicit Route: x.x.x.215 x.x.x.16
Record Route: NONE
Tspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
Shortest Unconstrained Path Info:
Path Weight: 1 (TE)
Explicit Route: x.x.x.215 x.x.x.16
History:
Tunnel:
Time since created: 89 days, 19 hours, 34 minutes
Time since path change: 1 days, 12 hours, 22 minutes
Number of LSP IDs (Tun_Instances) used: 2279
Current LSP: [ID: 2279]
Uptime: 1 days, 12 hours, 22 minutes
Prior LSP: [ID: 108]
ID: path option unknown
Removal Trigger: path verification failed
Does anyone have an idea why this may be?
We did have a failure in the explicit path the other day but the link has since been resolved. I want to apply the "disable-fallback" option to the "preferred-path" statement under the "pseudowire-class" configuration but have noticied this issue first.
Kind Regards
