Originate Make-Before-Break Call Event

LSP Event

Originate make-before-break call

Sample Output

user@R1# run show mpls lsp extensive

Ingress LSP: 3 sessions

10.0.0.3

  From: 10.0.0.1, State: Up, ActiveRoute: 5, LSPname: R1-to-R3

  ActivePath:  (primary)

  LoadBalance: Random

  Metric: 1

  Autobandwidth 

  MinBW: 155Mbps MaxBW: 155Mbps

  AdjustTimer: 300 secs AdjustThreshold: 10%

  Max AvgBW util: 392bps, Bandwidth Adjustment in 101 second(s).

  Encoding type: Packet, Switching type: Packet, GPID: IPv4

 *Primary                    State: Up

    Bandwidth: 140Mbps 

    Computed ERO (S [L] denotes strict [loose] hops): (CSPF metric: 10)

 10.1.13.2 S 

    Received RRO (ProtectionFlag 1=Available 2=InUse 4=B/W 8=Node 
10=SoftPreempt):

          10.1.13.2

   13 Feb 17 21:23:51 Manual Autobw adjustment failed

   12 Feb 17 21:23:51 CSPF failed: no route toward 10.0.0.3

   11 Feb 17 21:16:06 Record Route:  10.1.13.2

   10 Feb 17 21:16:06 Up

    9 Feb 17 21:16:06 Manual Autobw adjustment succeeded

    8 Feb 17 21:16:06 Originate make-before-break call

    7 Feb 17 21:16:06 CSPF: computation result accepted

    6 Feb 17 21:14:51 Selected as active path

    5 Feb 17 21:14:51 Record Route:  10.1.13.2

    4 Feb 17 21:14:51 Up

    3 Feb 17 21:14:51 Originate Call

    2 Feb 17 21:14:51 CSPF: computation result accepted

    1 Feb 17 21:14:22 CSPF failed: no route toward 10.0.0.3[4 times]

[...Output truncated...]

What It Means

This LSP event indicates that a make-before-break operation is in progress, in which the label-switched router (LSR) signals a new path for the LSP and switches over to this path, tearing down the existing path.

Cause

In an adaptive LSP, this LSP event is caused by a change in bandwidth or ERO. For an active LSP path, this LSP is caused by a change in reoptimization or autobandwidth adjustment.

Action

Not applicable.