Understanding Autobandwidth Events

Multiprotocol Label Switching (MPLS) autobandwidth automatically adjusts the bandwidth size of an MPLS traffic-engineered tunnel based on the actual traffic flowing through the tunnel. Autobandwidth success and failure is logged in the output of the show mpls lsp extensive command. For more information on autobandwidth, see the JUNOS MPLS Applications Configuration Guide.

This chapter lists and describes autobandwidth events that occur in the output of the show mpls lsp extensive command, including sample output of the label-switched path (LSP) event, an explanation of what the event means, the possible cause of the event, and any specific actions that you can take to remedy the situation. (See Table 8.)

Table 8: Checklist for Understanding Autobandwidth Events

Understanding Autobandwidth Events Tasks	Possible Action or Command
Displaying Autobandwidth Events	show mpls lsp extensive
Manual Autobandwidth Adjustment
Manual Autobandwidth Adjustment Failed Event	Take the corrective action appropriate to the situation: Verify the MPLS and RSVP configurations on all available paths to the LSP endpoint. Check available bandwidth on alternate paths using the show rsvp interface command.
Manual Autobandwidth Adjustment Succeeded Event	Not applicable.
Automatic Autobandwidth Adjustment
Automatic Autobandwidth Adjustment Failed Event	Take action appropriate to the situation: Verify the MPLS and RSVP configurations on all available paths to the LSP endpoint. Check available bandwidth on alternate paths using the show rsvp interface command.
Automatic Autobandwidth Adjustment Succeeded Event	Not applicable.