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enhanced-convergence

Syntax

Hierarchy Level

Description

Note:

On EX9200 and QFX10000 switches, enhanced convergence is applicable for unicast traffic only—for example, when a MAC address is learned over an MC-AE interface, or an ARP entry is resolved over an MC-AE interface.

Note:

Enhanced convergence is not supported on QFX5100, QFX5110, QFX5120, QFX5200-48Y, QFX5200-32C, and QFX5210-64C switches.

Improves Layer 2 and Layer 3 convergence time when a multichassis aggregated Ethernet (MC-AE) link goes down or comes up in a bridge domain or VLAN. Convergence time is improved because the traffic on the MC-AE interface is switched to the interchassis link (ICL) without waiting for a MAC address update.

If you have configured an IRB interface over an MC-AE interface that has enhanced convergences enabled, then you must configure enhanced convergence on the IRB interface as well. Enhanced convergence must be enabled for both Layer 2 and Layer 3 interfaces.

Traffic convergence for hosts learnt on an IRB interface improves during MAC move or Layer 2 link failure when both enhanced-convergence and enhanced-ip chassis are configured. With the knobs configured, the show arp and show ipv6 neighbors commands do not display the underlying IFL information if the destination interface is an IRB interface.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 15.1R1.