Cisco Catalyst 4500 Series System Message Guide

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Catalyst 4500 Series Switch Cisco IOS System Message Guide
OL-13091-01
Chapter 2 Messages and Recovery Procedures
REDUNDANCY Messages
Error Message C4K_REDUNDANCY-2-IOS_VERSION_INCOMPATIBLE:[char]
Explanation
The system detected an incompatible redundancy condition. The active supervisor
engine is running Cisco IOS Release 12.2 or later releases and the standby supervisor engine is
running Cisco IOS Release 12.1. The system will reset the standby supervisor engine.
Recommended Action Configure the switch so that the active and standby supervisor engines are
running the same release of Cisco IOS software.
Error Message C4K_REDUNDANCY-2-NON_SYMMETRICAL_REDUNDANT_SYSTEM: [char]
Explanation The active and standby supervisor engine hardware is different. In this condition,
redundancy operations are not guaranteed.
Recommended Action Configure the hardware so that the active and standby supervisor engines are
identical.
Error Message C4K_REDUNDANCY-2-POSTFAIL:POST failure on [char] supervisor detected.
[char]
Explanation The active supervisor engine failed POST. The current standby supervisor engine resets
the current active supervisor engine to standby and attempts to become the active supervisor engine.
If the standby supervisor engine failed POST, then it will suspend at bootup and stay there. During
this time if the active supervisor engine fails, then the standby supervisor engine will also reboot
because it is not a fully functional standby supervisor engine at this point.
Recommended Action Run offline diagnostics on the failed supervisor engine to isolate the problem.
Error Message C4K_REDUNDANCY-2-POSTFAIL_RESET:POST failure on ACTIVE supervisor
detected. [char]
Explanation
The active supervisor engine failed POST but detected the standby supervisor engine at
bootup. The active supervisor engine will reset itself so that the standby supervisor engine can take
over as the new active supervisor engine.
Recommended Action Run offline diagnostics on the failed supervisor engine to isolate the failure.
Immediate action is not needed for the switch to operate, but redundancy will not be available until
there is a second functional supervisor engine.
Error Message C4K_REDUNDANCY-2-SEND_NEGO_FAILED: Redundancy ISSU client failed to
send negotiation message. Error: [dec] ([char])
Explanation
The redundancy ISSU client failed to send a session negotiation message to the peer
device. If a problem occurs with the ISSU session negotiation, the standby device cannot be brought
up properly.
Recommended Action Using the show issu compatibility matrix command, verify that both the
active and standby supervisor engines have software supporting ISSU. Reset the standby supervisor
engine using the redundancy reload peer command. If problems persist, contact a Cisco technical
support representative.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E