Cisco Systems 3130 Using the crashinfo Files

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Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide

OL-13270-01

Chapter47 Troubleshooting

Using the crashinfo Files

This is an example of the output when the packet comin g in o n po rt 1 in VLAN 5 has a de stinatio n MAC

address set to the router MAC address in VLAN 5 and the destination IP address set to an IP address that

is in the IP routing table. It should be forwarded as specified in the routing table.

Switch# show platform forward gigabitethernet1/0/1 vlan 5 1.1.1 03.e319.ee44 ip 110.1.5.5

16.1.10.5

Global Port Number:24, Asic Number:5

Src Real Vlan Id:5, Mapped Vlan Id:5

Ingress:

Lookup Key-Used Index-Hit A-Data

InptACL 40_10010A05_0A010505-00_41000014_000A0000 01FFA 03000000

L3Local 00_00000000_00000000-90_00001400_10010A05 010F0 01880290

L3Scndr 12_10010A05_0A010505-00_40000014_000A0000 01D28 30090001_00000000

Lookup Used:Secondary

Station Descriptor:F0070007, DestIndex:F007, RewriteIndex:0007

==========================================

Egress:Asic 3, switch 1

Output Packets:

------------------------------------------

Packet 1

Lookup Key-Used Index-Hit A-Data

OutptACL 50_10010A05_0A010505-00_40000014_000A0000 01FFE 03000000

Port Vlan SrcMac DstMac Cos Dscpv

Gi1/0/2 0007 XXXX.XXXX.0246 0009.43A8.0147

Using the crashinfo Files

The crashinfo files save information that helps Cisco technical support representatives to debug

problems that caused the Cisco IOS image to fail (crash). The switch writes the cra sh in for matio n to th e

console at the time of the failure. The switch creates two types of c ras hinf o files:

•Basic crashinfo file—The switch automatically creates this file the next time you boot up the Cisco

IOS image after the failure.

•Extended crashinfo file—The switch automatically creates this file when the system is failing.

The information in the basic file includes the Cisco IOS image name and version t hat failed, a list of the

processor registers, and a stack trace. You can provide this information to the Cisco technical support

representative by using the show tech-support privileged EXEC command.

Basic crashinfo files are kept in this directory on the flash file sy stem :

flash:/crashinfo/.

The filenames are crashinfo_n where n is a sequence nu mb er.

Each new crashinfo file that is created uses a sequence number that is larger than any previously existing

sequence number, so the file with the largest sequence number describes the most recent failure. Version

numbers are used instead of a timestamp because the switches do not include a real-time clock. You

cannot change the name of the file that the system will use when it creates the file. However, after the