187To do… Use the command… RemarksStep 2 Enter IS-IS view isis [ process-id ] [ vpn-instance vpn-instance-name ] ––Step 3 Specify a priority for IS-IS preference { route-policy route-policy-name | preference } *Required15 by defaultConfiguring the maximum number of equal-cost routesIf there are multiple equal-cost routes to the same destination, the traffic can be load balanced toenhance efficiency.To do… Use the command… RemarksStep 1 Enter system view system-view ––Step 2 Enter IS-IS view isis [ process-id ] [ vpn-instance vpn-instance-name ] ––Step 3 Specify the maximum numberof equal-cost routes for loadbalancingmaximum load-balancing numberRequiredBy default, themaximumnumber ofequal-cost routesfor loadbalancing iseight.Configuring IS-IS route summarizationThis task is to configure a summary route so routes falling into the network range of the summaryroute are summarized into one route for advertisement. Doing so can reduce the size of routingtables, as well as the scale of LSP and LSDB. Both IS-IS routes and redistributed routes can besummarized.To do… Use the command... RemarksStep 1 Enter system view system-view —Step 2 Enter IS-IS view isis [ process-id ] [ vpn-instance vpn-instance-name ] ––Step 3 Configure IS-IS routesummarizationsummary ip-address { mask | mask-length } [avoid-feedback | generate_null0_route |tag tag | [ level-1 | level-1-2 | level-2 ] ]*RequiredNo routesummarization isconfigured bydefault.
