Juniper JUNOS OS 10.3 - SOFTWARE Manual page 1034

Complete Software Guide for Junos
938
®
OS for EX Series Ethernet Switches, Release 10.3
Figure 12: Traffic Redirected by Fast Failover After Dedicated VCP Link
Failure
When the failed link is restored, the Virtual Chassis reconfigures the topology to the
topology's original state.
Fast Failover in a Ring Topology Using Uplink Module VCPs
In a ring topology that uses uplink module VCPs, each uplink module VCP is automatically
configured with a backup uplink module VCP. If an uplink module VCP fails, its backup
port is used to send traffic. Figure 13 on page 939 shows normal traffic flow in a ring topology
using SFP uplink module VCPs. Normal traffic flow in a ring topology using XFP uplink
module VCPs is the same.
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