Resetting Local Statistics; Example: Configuring Is-Is For Gres With Graceful Restart - Juniper EX9200 Features Manual

High Availability Feature Guide for EX9200 Switches

Resetting Local Statistics

Related
Documentation

Example: Configuring IS-IS for GRES with Graceful Restart

Requirements
20
When you enable graceful Routing Engine switchover, the master Routing Engine
configuration is copied and loaded to the backup Routing Engine. User files, accounting
information, and trace options information are not replicated to the backup Routing
Engine.
When a graceful Routing Engine switchover occurs, local statistics such as process
statistics and networking statistics are displayed as a cumulative value from the time
the process first came online. Because processes on the master Routing Engine can start
at different times from the processes on the backup Routing Engine, the statistics on the
two Routing Engines for the same process might differ. After a graceful Routing Engine
switchover, we recommend that you issue the
command to reset the cumulative values for local statistics. Forwarding statistics
| all)
are not affected by graceful Routing Engine switchover.
For information about how to use the
database information, see the
NOTE: The
clear firewall
filter counters on a backup Routing Engine that is enabled for graceful Routing
Engine switchover.
Understanding Graceful Routing Engine Switchover on page 3
Configuring Graceful Routing Engine Switchover on page 17
This example shows how to configure the Routing Engine's graceful restart protocol
extensions using the intermediate system to intermediate system (IS-IS) interior gateway
protocol (IGP) to successfully enable graceful Routing Engine switchover (GRES) with
graceful restart.
Requirements on page 20
Overview on page 21
Configuration on page 21
Verification on page 22
GRES prevents interruptions in network traffic if the master Routing Engine fails when
combined with either:
Graceful restart
Nonstop active routing (NSR)
clear interface statistics (interface-name
command to clear statistics and protocol
clear
.
CLI Explorer
command cannot be used to clear the Routing Engine
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