Cisco 12012 Technical Information PDF herunterladen (Seite 36)

Command Reference

Release 11.2 GS

show context

To display information stored in NVRAM when the router crashes, use the show context EXEC

command.

show context summary

show context {all | slot slot-number [crash-index] [all] [debug]}

Syntax Description

Command Mode

EXEC

Usage Guidelines

This command was modiﬁed in Cisco IOS Release 11.2 GS to add the all, debug, slot, and

summary keywords.

The display from the show context command includes the following information:

• Reason for the system reboot

• Stack trace

• Software version

• The signal number, code, and router uptime information

• All the register contents at the time of the crash

Note This information is of use only to technical support representatives in analyzing crashes in the

ﬁeld. It is included here in case you need to read the displayed statistics to an engineer over the

phone.

summary Displays a summary of all the crashes recorded.

all Displays all crashes for all the slots. When optionally used with the slot

keyword, displays crash information for the speciﬁed slot.

slot slot-number

[crash-index]

Displays information for a particular line card. Slot numbers range from 0

to 11 for the Cisco 12012 and 0 to 7 for the Cisco 12008. Index number

allows you to look at previous crash contexts. Contexts from the last 24

line card crashes are saved on the GRP card. If the GRP reloads, the last 24

line card crash contexts are lost. For example, show context slot 3 2 shows

the second most recent crash for line card in slot 3. Index numbers are

displayed by the show context summary command

debug (Optional) Displays crash information as hex record dump in addition to

one of the options listed above.

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Cisco 12012 Technical Information Seite 36