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Failover in Case of a Routing Engine Failure
Graceful Routing Engine switchover (GRES) is supported in case
of a Routing Engine failure. A failure of the Routing Engine stops
the PGCP process. When the JUNOS software high-availability framework
detects the Routing Engine failure, it switches control of the packet
gateway to the PGCP process on the backup Routing Engine. The PGCP
process stores completed H.248 states, and these states survive a
restart or a switchover. After the restart or switchover is completed,
the PGCP process reapplies the states.
Related Topics
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Part 3, Graceful Routing Engine Switchover in JUNOS High Availability Configuration Guide
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Chapter 27, Summary of Packet Gateway Configuration
Statements in JUNOS Services Interfaces
Configuration Guide
-
Chapter 25, Packet Gateway Control Protocol
Operational Mode Commands in JUNOS
System Basics and Services Command Reference
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