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debug gsr mbus

Cisco 12000 Series Gigabit Switch Routers 67

Debug Commands

This section documents the following new debug commands. All other debug commands used with

this feature are documented in the Cisco IOS Release 11.2 Debug Command Reference.

• debug gsr mbus

• debug ipc errors

• debug mbus system

debug gsr mbus

To enable the display of MBus messages if a line card fails to come up properly, use the debug gsr

mbus EXEC command. Use the no form of the command to disable debugging output.

[no] debug gsr mbus

Usage Guidelines

This command ﬁrst appeared in Cisco IOS Release 11.2 GS.

Use the the debug gsr mbus command if the line card fails to come up (that is, does not reach the

“Line Card Enabled” state when using the show gsr command). Reload the line card and review the

output that provides a chronology of the boot process. If a lot of MBus errors are being generated,

enable the debug gsr mbus command. Additional information can be obtained with the show mbus

counters and show mbus can-error commands.

Sample Display

Figure 1 shows sample output from the debug gsr mbus command when microcode is reloaded on

the line card in slot 4.

Figure 1 Sample Debug GSR MBus Output

router# debug gsr mbus

Removed slot 4 for config

Enabling line card 242 on fabric

Added slot 4 for config

Enabling line card 252 on fabric

Launching fab down loader in slot 4

with Switch Cards 1F and

primary_clk CSC_1

Removed slot 4 for config

Enabling line card 242 on fabric

REQ_CONFIG_FIA from slot = 4

config send: code 3 primary 2 switch 1F csc_mode 2

CONFIG_FIA_OVER from slot 4

Added slot 4 for config

Enabling line card 252 on fabric

Table 7 describes the messages generated by this command in the sample output.

1 2 ... 50 51 52 53 54 55 56 57 58 59 60

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Cisco 12012 Technical Information Page 55