Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
diagnostic fpga soft-error recover
diagnostic fpga soft-error recover
To configure the SEU behavior, use the diagnostic fpga soft-error recover command. To return to the
default setting, use the no form of this command.
diagnostic fpga soft-error recover {conservative | aggressive}
no diagnostic fpga soft-error recover
Syntax Description
Defaults A switch exhibits the default SEU behavior when this command is not configured. On redundant
switches that have reached SSO, the default behavior is aggressive. In all other switches, the default
behavior is conservative.
Command Modes Global config mode
Command History
Usage Guidelines SEU events on the system FPGAs result in a potentially unstable switch. The only recovery is to reload
the affected supervisor engine. However, SEU events may be harmless, so you might want to delay the
reload until a maintenance window, to avoid impacting users. Alternatively, you might want to force an
immediate reload to avoid an instance where the switch crashes or drops traffic because of the SEU.
Examples This example shows how to configure the SEU behavior as conservative:
Switch(config)# diagnostic fpga soft-error recover conservative
This example shows how to revert to the default behavior:
Switch(config)# no diagnositc fpga soft-error recover
conservative Dictates that the supervisor engine does not reload, Rather it issues a console error
message once an hour.
You should reload the supervisor engine at the next maintenance window.
aggressive Dictates that the supervisor engine reloads immediately and automatically. A
crashdump is generated, allowing you to identify the SEU event as the cause of
the reload.
Release Modification
12.2(53)SG3,
12.2(54)SG,
15.0(2)SG
XE 3.1.1SG
Support for this command was provided on the Catalyst 4500 series switch.
12.2(53)SG6
15.0(2)SG2
XE 3.3.0SG
Support for the conservative option was added.

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