Is-Is Effects On Graceful Restart And Network Stability During Unified Issu; Configuring Graceful Restart Before Unified Issu Begins - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SERVICE AVAILABILITY CONFIGURATION GUIDE 2010-10-08 Configuration Manual
Software for e series broadband services routers service availability configuration guide
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failed hosts: 0
failed users: 0
Statistics since last system reload:
attempts: 3
failed hosts: 0
failed users: 0
host1#show issu detail
ISSU state:
idle
ISSU description: ISSU is currently idle
criteria met:
No, upgrade error(s) found
running release:
dtnguyen.rel
armed release:
dtnguyen.rel
#
--
------------------------------------------------------------
1
In-Service Software Upgrade ready?
2
High-Availability ready?
3
Line modules ready?
4
Configuration conversion support ready?
5
CLI sessions ready?
6
Routing applications ready?
->
Criteria: FTP file transfer is in progress
Impact: ISSU cannot be performed when file transfer is in pr
ogress
Remedy: Abort transfer with "ftp-server flush" or wait until
transfer is done
Reporting slot: 7
7
Protocol timers ready?
host1#ftp-server flush
This command will terminate all FTP sessions, continue? [confirm]
host1#
Related
Documentation
IS-IS Effects on Graceful Restart and Network Stability During Unified ISSU
Configuring Graceful Restart Before Unified ISSU Begins
Copyright © 2010, Juniper Networks, Inc.
ISSU Criteria Summary
New FTP connections are not allowed and all existing FTP connections are dropped after
the unified ISSU process begins. Also, no remote file operations are allowed while unified
ISSU is in progress. If unified ISSU is aborted, FTP server is returned to the state in which
it was before unified ISSU was started.
Application Support for Unified ISSU on page 115
IS-IS has the following issues to consider before you begin a unified in-service software
upgrade:
Graceful restart—Required
Routing around the upgrading router—Optional
You must configure IS-IS graceful restart on the router and on all IS-IS neighbors before
you begin the unified in-service software upgrade. When the unified ISSU process verifies
Chapter 5: Configuring a Unified In-Service Software Upgrade
Met
-----------
Yes
No
Conditional
Yes
Yes
No
No
Yes
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