LSP Event
Autobw adjustment succeeded
Sample Output 1
user@R1> show configuration protocols mpls
statistics {
file auto-bw.log;
interval 5;
auto-bandwidth;
}
label-switched-path R1-to-R6 {
to 10.0.0.6;
auto-bandwidth {
adjust-interval 300;
adjust-threshold 10;
minimum-bandwidth 10m;
maximum-bandwidth 80m;
}
}
Sample Output 2
user@host> show mpls lsp extensive
[...Output truncated...]
Ingress LSP: 1 sessions
10.0.0.6
From: 10.0.0.1, State: Up, ActiveRoute: 0, LSPname: R1-to-R6
ActivePath: (primary)
LoadBalance: Random
Autobandwidth
MinBW: 10Mbps MaxBW: 80Mbps
AdjustTimer: 300 secs AdjustThreshold: 10%
Max AvgBW util: 0bps, Bandwidth Adjustment in 282 second(s).
Encoding type: Packet, Switching type: Packet, GPID: IPv4
*Primary State: Up
Bandwidth: 10Mbps
Computed ERO (S [L] denotes strict [loose] hops): (CSPF metric: 20)
10.1.13.2 S 10.1.36.2 S
Received RRO (ProtectionFlag 1=Available 2=InUse 4=B/W 8=Node 10=SoftPreempt):
10.1.13.2 10.1.36.2
9 Feb 17 14:41:12 Record Route: 10.1.13.2 10.1.36.2
8 Feb 17 14:41:12 Up
7 Feb 17 14:41:12 Autobw adjustment succeeded
6 Feb 17 14:41:12 CSPF: computation result accepted
5 Feb 17 14:36:29 Selected as active path
4 Feb 17 14:36:29 Record Route: 10.1.13.2 10.1.36.2
3 Feb 17 14:36:29 Up
2 Feb 17 14:36:29 Originate Call
1 Feb 17 14:36:29 CSPF: computation result accepted
Created: Thu Feb 17 14:36:29 2005
Total 1 displayed, Up 1, Down 0
[...Output truncated...]
Meaning
This LSP event indicates that a periodic (timer-based) autobandwidth adjustment for the LSP is triggered at the end of the adjust interval. A new path for the LSP, with the adjusted bandwidth, is successfully computed and signaled. The LSP (and traffic) switches over to the new adjusted path.
Cause
At the end of the time interval specified at the [edit protocols mpls label-switched-path auto-bandwidth] hierarchy level, the current maximum average bandwidth usage is compared to the allocated bandwidth for the LSP. If the LSP needs more bandwidth, an attempt is made to set up a new path where bandwidth is equal to the current maximum average usage. If the attempt is successful, the LSP's traffic is routed through the new path and the old path is removed. If the attempt fails, the LSP continues to use its current path.
Action
No action required. Automatic autobandwidth adjustment succeeded.
