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Configuring Locality Bias for a Virtual Chassis

Starting in Junos OS Release 14.1, configuring locality bias enables you to conserve Virtual Chassis port bandwidth, reduce infrastructure costs, and reduce network latency in a two-member MX Series Virtual Chassis. Locality bias works by directing unicast traffic for equal-cost multipath (ECMP) groups and aggregated Ethernet bundles to egress links in the same (local) member router in the Virtual Chassis rather than to egress links in the remote member router.

You can enable locality bias by including the locality-bias statement at the [edit virtual-chassis] hierarchy level.

Best Practice:

To avoid possible traffic loss and oversubscription on egress interfaces, make sure you understand the utilization requirements for the local links in your network before changing the locality bias configuration.

To configure locality bias for an MX Series Virtual Chassis:

  1. Specify that you want to enable locality bias in the Virtual Chassis.
  2. Commit the configuration.

Related Documentation

Change History Table

Feature support is determined by the platform and release you are using. Use Feature Explorer to determine if a feature is supported on your platform.

Release
Description
14.1
Starting in Junos OS Release 14.1, configuring locality bias enables you to conserve Virtual Chassis port bandwidth, reduce infrastructure costs, and reduce network latency in a two-member MX Series Virtual Chassis.