Configuring Fast Failover In A Virtual Chassis Configuration - Dell PowerConnect J-EX4200-24T Software Manual

Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS
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Configuring Fast Failover in a Virtual Chassis Configuration

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798
Configuring a Virtual Chassis (CLI Procedure) on page 781
Configuring a Virtual Chassis (J-Web Procedure) on page 784
Understanding Virtual Chassis Components on page 694
The Virtual Chassis fast failover feature is a hardware-assisted failover mechanism that
automatically reroutes traffic and reduces traffic loss in the event of a link or switch
failure. If a link between two members fails, traffic flow between those members must
be rerouted quickly so that there is minimal traffic loss.
While fast failover is enabled by default on dedicated Virtual Chassis ports (VCPs), you
must manually enable fast failover on uplink module ports that have been configured
as VCPs.
Before you begin configuring fast failover, ensure that the dedicated VCPs or uplink
module VCPs are connected in a ring topology.
To reenable the fast failover feature on all dedicated VCPs in a ring:
[edit]
user@switch# delete virtual-chassis fast-failover vcp disable
To configure the fast failover feature on all SFP uplink module VCPs in a ring:
[edit]
user@switch# set virtual-chassis fast-failover ge
Example: Configuring Fast Failover on Uplink Module VCPs to Reroute Traffic When a
Virtual Chassis Member Switch or Inter-Member Link Fails on page 763
Disabling Fast Failover in a Virtual Chassis Configuration on page 799
Setting an Uplink Module Port as a Virtual Chassis Port (CLI Procedure) on page 792
Configuring a Virtual Chassis (CLI Procedure) on page 781
Configuring a Virtual Chassis (J-Web Procedure) on page 784
Understanding Fast Failover in a Virtual Chassis Configuration on page 706