25.
Status Monitoring, Statistics and General Commands
MN700004 Rev 01
301
Example
device-name
#
show web-server
web-server enable
Debug Information
The following debugging commands can be used by support personnel to monitor a session as
it proceeds on the switch.
debug mstp
The
debug mstp
command, in Privileged (Enable) mode, displays the information related to
port roles, handshaking protocol, pim, prt, tcm and MAC address flush debugging in the
Multiple Spanning Tree Protocol (MSTP). Use the
no
form of this command to disable the
display of MSTP ports information.
The MSTP debug commands will not be saved after reload.
Command Syntax
device-name
#
debug mstp
{
roles
|
handshake
|
pim
|
prt
|
tcm
|
flush
}
{
all
| <
instance-id
>}
device-name
#
no debug mstp
{
roles
|
handshake
|
pim
|
prt
|
tcm
|
flush
} {
all
| <
instance-id
>}
device-name#debug mstp bpdu {rx|tx|sanity-check validation}
{all|UU/SS/PP}
device-name#no debug mstp bpdu {rx|tx|sanity-check|instance-
id|validation} {all|UU/SS/PP}
Argument Description
roles
Displays logs of the port roles.
handshake
Displays port handshaking logs.
pim
Displays logs of the port information state machine.
prt
Displays logs of the port role transition state machine.
tcm
Displays logs of the topology change state machine.
flush
Displays logs of the MAC address table flush debugging.
all
Displays logs for all instances
instance-
iddebug mstp
bpdu
The MST instance ID, the range is 0 to 15.Displays logs for thereceived and
transmitted BPDUs. For a detailed description, refer to 'Debugging the MSTP
BPDU'.