Topologies - Dell PowerConnect J-EX4200-24T Software Manual

Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS
710
Figure 12: Traffic Redirected by Fast Failover After SFP Uplink Module
VCP Link Failure
In a ring topology that uses SFP uplink module VCPs, there are four ports per module.
Consecutive pair of ports are automatically configured as backup ports for each other.
For example, if a Virtual Chassis member has an SFP uplink module installed, uplink
module VCPs and
ge-0/1/0
the other port in the pair. Similarly, ports
configured as the backup port for the other port in the pair.
Fast Failover in a Virtual Chassis Configuration Using Multiple Ring Topologies
Fast failover is supported in a Virtual Chassis configuration with a multiple-ring topology,
as shown in Figure 13 on page 711.
are automatically configured as the backup port for
ge-0/1/1
and
ge-0/1/2
are automatically
ge-0/1/3