Traffic Engineering Tunnel Setup

From: Ian Blaney (ian.blaney@gmail.com)
Date: Mon Jul 30 2007 - 17:01:02 ART


Hello

Could some please tell me what this message means. I am working on lab1
section 4.4 of the IE SP workbook. I can create a tunnel in one direction
but somehow not in the other direction.

%MPLS_TE-3-CONSISTENCY: Path lookup returned path that didn't pass
verification: -Traceback= 0x60402F18 0x611DA574 0x611DAAA4 0x611E3E90
0x611E4840

I also see show mpls traffic-eng tunnels tunn0 gives me

Last Error: PCALC:: Can't use link 131.1.26.6 on node 131.1.6.6

This is my config

interface Tunnel0
 ip unnumbered Loopback0
 tunnel destination 131.1.4.4
 tunnel mode mpls traffic-eng
 tunnel mpls traffic-eng autoroute announce
 tunnel mpls traffic-eng priority 7 7
 tunnel mpls traffic-eng bandwidth 10000
 tunnel mpls traffic-eng path-option 2 dynamic
 no routing dynamic

interface Ethernet0/1
 bandwidth 45000
 ip address 131.1.26.6 255.255.255.0
 mpls ip
 mpls traffic-eng tunnels
 ip rsvp bandwidth
end

Rack1R6#show mpls forwarding-table 131.1.4.4
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
20 19 131.1.4.4/32 0 Et0/1 131.1.26.2

Rack1R6#show mpls traffic-eng topology path destination 131.1.4.4
Query Parameters:
  Destination: 131.1.4.4
    Bandwidth: 0
   Priorities: 0 (setup), 0 (hold)
     Affinity: 0x0 (value), 0xFFFFFFFF (mask)
Query Results:
  Min Bandwidth Along Path: 33750 (kbps)
  Max Bandwidth Along Path: 33750 (kbps)
  Hop 0: 131.1.26.6 : affinity 00000000, bandwidth 33750 (kbps)
  Hop 1: 131.1.23.2 : affinity 00000000, bandwidth 33750 (kbps)
  Hop 2: 131.1.34.3 : affinity 00000000, bandwidth 33750 (kbps)
  Hop 3: 131.1.34.4 : affinity 00000000, bandwidth 33750 (kbps)
  Hop 4: 131.1.4.4

Rack1R6#trace 131.1.4.4

Type escape sequence to abort.
Tracing the route to 131.1.4.4

  1 131.1.26.2 [MPLS: Label 19 Exp 0] 516 msec 620 msec 548 msec
  2 131.1.23.3 [MPLS: Label 16 Exp 0] 260 msec 520 msec 236 msec
  3 131.1.34.4 324 msec * 384 msec

Rack1R6#

Rack1R6#show mpls traffic-eng tunnels tunn0

Name: Rack1R6_t0 (Tunnel0) Destination: 131.1.3.3
  Status:
    Admin: up Oper: down Path: not valid Signalling: Down
    path option 2, type dynamic

  Config Parameters:
    Bandwidth: 10000 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
    Metric Type: TE (default)
    AutoRoute: enabled LockDown: disabled Loadshare: 10000 bw-based
    auto-bw: disabled

  Shortest Unconstrained Path Info:
    Path Weight: 4 (TE)
    Explicit Route: 131.1.26.6 131.1.23.3 131.1.3.3
  History:
    Tunnel:
      Time since created: 31 minutes, 14 seconds
    Path Option 2:
      Last Error: PCALC:: Can't use link 131.1.26.6 on node 131.1.6.6

Thanks
Ian Blaney



This archive was generated by hypermail 2.1.4 : Sat Aug 18 2007 - 08:17:42 ART