You can set multiple parallel routes installed in the IP routing table. During packet switching, load balancing is performed among the multiple paths. A maximum of 32 paths is supported. By default, 8 paths are installed to the IP routing table.
During load balancing, a source/destination pair always uses the same path. Use the no option to reset the number of parallel paths to 8.
Use the maximum-paths command in IS-IS configuration command mode to configure the maximum number of multiple parallel routes.