Brocade FastIron SX, FCX, and ICX Diagnostic Reference - Manual (Page 17)

Brocade FastIron SX, FCX, and ICX Diagnostic Reference 5
53-1003076-02
Chapter
2
System Level and Layer 1 Diagnostics
This chapter contains the following sections:
• Layer 1 debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
• System debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
• Software licensing debug command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Layer 1 debug commands
The following commands deal with the Layer 1 debugging for the Brocade FastIron platforms. In
general, Layer 1 issues are related to hardware, the most common being physical connectivity
problems.
Hardware backplane debug command
The following command enables the hardware backplane debugging feature in a device.
debug hw
Syntax: [no] debug hw
This command enables the hardware backplane debugging feature. To disable this feature, enter
the no form of the command.
Brocade# debug hw
HW BP: backplane debugging is on
Loop detect debug commands
Brocade Port Loop Detection (PLD) protocol allows the Brocade devices to detect loops and disable
a port that is on the receiving end of a loop. The loop is detected by sending Bridge Packet Data
Unit (BPDU) test packets.
debug loop-detect
Syntax: [no] debug loop-detect
This command initiates debugging the loop detection.
NOTE
Execute the command prior to configuring the modes.
Execute the following command to configure loop detection of a single port in strict mode.
Brocade# debug loop-detect
Configure loop-detection strict mode on port 1/1/25 :