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Checklist for Configuring CSPF Tracing

The checklist provides links and command to configure Multiprotocol Label Switching (MPLS) Constrained Shortest Path First (CSPF) tracing. With each flag that you configure, more granular information about CSPF calculations is provided by the CSPF log file output.

Table 1 provides commands for configuring CSPF tracing.

Table 1: Checklist for Configuring CSPF Tracing

Tasks

Possible Action or Command

Understanding CSPF 
Configuring CSPF Tracing

[edit]
edit protocols mpls

[edit protocols mpls]
set traceoptions file filename
set traceoptions flag cspf
set traceoptions flag cspf-link
set traceoptions flag cspf-node

show
commit

Examining the CSPF Log File 
  1. Trace Only CSPF Computations

[edit protocols mpls]
run monitor start filename
run show log filename

  1. Trace Nodes Visited During CSPF Computations

[edit protocols mpls]
run monitor start filename
run show log filename

  1. Trace Links Visited During CSPF Computations

[edit protocols mpls]
run monitor start filename
run show log filename
show ted database


Published: 2010-01-30

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