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JCS1200 Platform Graceful Routing Engine (GRES) Switchover
Graceful Routing Engine Switchover Overview
Graceful Routing Engine Switchover PIC Support
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Copyright © 2010, Juniper Networks, Inc.
JCS1200 Platform Hardware Components on page 21
Graceful Routing Engine Switchover Overview on page 27
Graceful Routing Engine Switchover PIC Support on page 27
The Graceful Routing Engine switchover (GRES) feature in the Junos OS enables a routing
platform with redundant Routing Engines to continue forwarding packets even if one
Routing Engine fails. GRES preserves interface and kernel information. Traffic is not
interrupted. For more information, on GRES, see the Junos High Availability Configuration
Guide.
To configure GRES on the JCS1200 platform, include the
at the
[edit chassis redundancy routing-engine]
Configure the
graceful-switchover
that include redundant Routing Engines.
Junos OS Release 10.0 or higher supports GRES for PICs running on the JCS1200 platform,
including IQ2 PICs. IQ2 PICs supported on the JCS1200 platform include 1-, 4-, and 8-port
Gigabit Ethernet IQ2 PICs and 1-port 10-Gigabit Ethernet IQ2 PICs.
Junos High Availability Configuration Guide
Configuring a PSD with Redundant Routing Engines on page 89
Chapter 3: JCS1200 Platform Components
graceful-switchover
hierarchy level on the PSD.
statement for all PSDs on the JCS1200 platform
statement
27
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