Issu; Unexpected Atm Behavior During Unified Issu; Ilmi Sessions Not Maintained; Oam Cc Effects On Vcc - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SERVICE AVAILABILITY CONFIGURATION GUIDE 2010-10-08 Configuration Manual

JunosE 11.3.x Service Availability Configuration Guide
Unexpected AAA Authentication and Authorization Behavior During Unified ISSU
Related
Documentation

Unexpected ATM Behavior During Unified ISSU

ILMI Sessions Not Maintained

OAM CC Effects on VCC

OAM VC Integrity Verification Cessation

124
Unexpected T3 Behavior During Unified ISSU on page 135
Unexpected Suspension of Subscriber Login and Logouts During Unified ISSU on
page 134
Unavailability of TACACS+ Services During Unified ISSU on page 135
Recommended Settings for Routing Protocol Timers During Unified ISSU on page 138
Authentication and command authorization are temporarily disabled on the serial console
connection during the upgrade phase. You can connect to the serial console and issue
the reload, show issu, and show version commands without the action of authentication
and authorization servers, such as RADIUS or TACACS+.
Application Support for Unified ISSU on page 115
The following aspects of ATM behavior during unified ISSU are different than the behavior
during normal router operations.
The router does not maintain ILMI sessions during a unified in-service software upgrade.
The router terminates all ILMI sessions and restarts them during the upgrade. If the ILMI
protocol is enabled on any port, you are warned during the initialization phase when
unified ISSU is verifying the prerequisites for the upgrade. You can choose to continue
the upgrade—and bring down the sessions—or to halt the unified in-service software
upgrade.
When an ATM VC is configured as an OAM CC source, periodic OAM cells are generated
for about 15 seconds. The device configured as the OAM CC sink is likely to declare the
VCC down during this time. Unified ISSU generates a warning when it detects an OAM
CC source configuration during the initialization phase while unified ISSU is verifying the
prerequisites for the upgrade. You can choose to continue or halt the unified in-service
software upgrade
When an ATM VC is configured as OAM CC sink, it cannot receive OAM CC cells generated
by the source for about 15 seconds. The OAM CC does not time out and the VCC is not
declared down. OAM CC cell generation resumes when the unified ISSU operation is
completed.
During the unified ISSU operation, verification of OAM VC integrity stops. This verification
resumes when the unified ISSU operation is completed.
Copyright © 2010, Juniper Networks, Inc.