Configuring CSPF Tie Breaking

When selecting a path for an LSP, CSPF uses a tie-breaking process if there are several equal-cost paths. For information about how CSPF selects a path, see How CSPF Selects a Path.

You can configure one of the following statements (you can only configure one of these statements at a time) to alter the behavior of CSPF tie-breaking:

• To configure a random tie-breaking rule for CSPF to use to choose among equal-cost paths, include the random statement:

random;

• To prefer the path with the least-utilized links, include the least-fill statement:

least-fill; 

• To prefer the path with the most-utilized links, include the most-fill statement:

most-fill;

You can include each of these statements at the following hierarchy levels:

• [edit protocols mpls label-switched-path lsp-path-name]
• [edit logical-routers logical-router-name protocols mpls label-switched-path lsp-path-name]