14.
Multiple Spanning Tree Protocol (MSTP)
MN700004 Rev 01
170
By default, MSTP PIM debugging is disabled.
Command Syntax
device-name
#
debug mstp pim
{
all
|
flags
|
events
|
stats
}
from
<P
a
>
to
<P
z
>
device-name
#
no
debug mstp pim
{
all
|
flags
|
events
|
stats
}
Argument Description
all
Displays logs of all three PIM options (flags, events, stats) for the specified port range.
flags
Displays only the PIM flags logs for the specified port range.
events
Displays only the PIM events logs for the specified port range.
stats
Displays only the PIM stats logs for the specified port range.
<P
a
>
Number of the first port specifying the port range. The number must be in logical port
number format.
<P
z
>
Number of the last port specifying the port range. The number must be in logical port
number format.
Example
device-name
#
debug mstp pim all from 19 to 20
tMstPIM: 1970/01/01 01:25:35 : PIM CURRENT -> RECEIVE port 20 mst 0
tMstPIM: 1970/01/01 01:25:35 : PIM RECEIVE -> REPEATED_DESIG port 20 mst 0
tMstPIM: 1970/01/01 01:25:35 : PIM REPEATED_DESIG->CURRENT port 20 mst 0
Debugging the MSTP BPDU
The
debug mstp bpdu
command, in Privileged (Enable) mode, displays information about
the received and transmitted BPDUs packet in the Multiple Spanning Tree Protocol (MSTP).
The
no
form of this command disables the display of the MSTP BPDU information.
The MSTP debug commands will not be saved after reload.
By default, the MSTP BPDU debugging is disabled.
Command Syntax
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
rx
Indicates receive BPDUs.
tx
Indicates transmit BPDUs.
instance-id
The MST instance ID; the range is 0 to 15.
sanity-check
Debugs messages about the sanity checks of the packets.
validation
Debugs the validation of timer values contained in the BPDU.
all
Debugs the BPDUs for all interfaces.
UU/SS/PP
Debugs the BPDUs for the specified interface.