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Troubleshooting Link Protection for Multiple Bypass LSPs Checklist

Problem

This checklist provides steps and command to troubleshoot a network problem with link protection for multiple bypass paths for Resource Reservation Protocol (RSVP)-signaled LSPs (LSPs). The checklist includes links to a brief summary of link protection, an example network scenario, and more detailed information about the commands to troubleshoot and resolve the problem.

The troubleshooting process described in this case study should not be followed rigidly; it is a basis from which you can develop your own process to suit your particular situation. (See Table 12.

Solution

Table 12: Troubleshooting Link Protection for Multiple Bypass LSPs Checklist

Tasks	Command or Action
Troubleshooting Link Protection for Multiple Bypass LSPs
Symptom	One bypass LSP is pre-signaled instead of two. show mpls lsp bypass
Cause	The bandwidth reserved on the primary LSP is served by only one bypass path.
Troubleshooting Commands	show mpls lsp show mpls lsp bypass extensive show rsvp session ingress detail show rsvp interface show rsvp interface type-fpc/pic/port extensive show configuration statement-path
	show configuration statement-path show mpls lsp bypass show mpls lsp bypass extensive
Conclusion	Multiple bypass paths are pre-signaled when the bandwidth values in the configuration require multiple bypass paths.
Router Configurations	show configuration \| no-more

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