debug mstp bpdu

Monitors Multiple Spanning Tree Protocol (MSTP) Bridge Packet Data Units (BPDUs).
Syntax
debug mstp bpdu
no debug mstp bpdu
Modes

Privileged EXEC mode

Usage Guidelines

Use this command to record and display information in conjunction with the debug mstp enable and debug mstp events commands.

Examples

If this command is enabled, output similar to the following is displayed.

device# debug mstp bpdu
MSTP Bpdu debugging ON
device# debug mstp enable
device# MSTP[0xeb217]: PRX RECEIVE->RECEIVE - Port 1/1/1
MST 0, Port 1/1/1 - received BPDU
(802.1s) 0000 03 02 7c 80000012f2dbfd80 00000000
					80000012f2dbfd80 00000000 8001 0000 0014 0002 000f 80000012f2dbfd80 14
					{0xac36177f50283cd4b83821d8ab26de62}
MSTP[0xeb217]: PIM CURRENT->RECEIVE - MST 0, Port 1/1/1
MSTP[0xeb217]: PIM RECEIVE->REPEATED_DESIGNATED - MST 0, Port 1/1/1
MSTP: mstp_updtRcvdInfoWhileCist mst=0, Port 1/1/1, rcvdInfoWhile 5->7
MSTP[0xeb217]: PRX RECEIVE->RECEIVE - Port 1/1/2
MST 0, Port 1/1/2 - received BPDU
					[0xeb217] (802.1s) 0000 03 02 3c 80000012f2dbfd80 00000000
					80000012f2dbfd80 00000000 8002 0000 0014 0002 000f 80000012f2dbfd80 14
					{0xac36177f50283cd4b83821d8ab26de62}
MSTP[0xeb217]: PIM CURRENT->RECEIVE - MST 0, Port 1/1/2
MSTP[0xeb217]: PIM RECEIVE->REPEATED_DESIGNATED - MST 0, Port 1/1/2
MSTP: mstp_updtRcvdInfoWhileCist mst=0, Port 1/1/2, rcvdInfoWhile 5->7
MSTP[0xeb21b]: PTX IDLE->TRANSMIT_PERIODIC - Port 1/1/1
MSTP[0xeb21b]: PTX IDLE->TRANSMIT_PERIODIC - Port 1/1/2
MSTP[0xeb22b]: PRX RECEIVE->RECEIVE - Port 1/1/1
MST 0, Port 1/1/1 - received BPDU
				[0xeb22b] (802.1s) 0000 03 02 7c 80000012f2dbfd80 00000000
				80000012f2dbfd80 00000000 8001 0000 0014 0002 000f 80000012f2dbfd80 14
				{0xac36177f50283cd4b83821d8ab26de62}
MSTP[0xeb22b]: PIM CURRENT->RECEIVE - MST 0, Port 1/1/1
MSTP[0xeb22b]: PIM RECEIVE->REPEATED_DESIGNATED - MST 0, Port 1/1/1
MSTP: mstp_updtRcvdInfoWhileCist mst=0, Port 1/1/1, rcvdInfoWhile 5->7
MSTP[0xeb22b]: PRX RECEIVE->RECEIVE - Port 1/1/2
MST 0, Port 1/1/2 - received BPDU
				[0xeb22b] (802.1s) 0000 03 02 3c 80000012f2dbfd80 00000000
				80000012f2dbfd80 00000000 8002 0000 0014 0002 000f 80000012f2dbfd80 14
				{0xac36177f50283cd4b83821d8ab26de62}
MSTP[0xeb22b]: PIM CURRENT->RECEIVE - MST 0, Port 1/1/2
MSTP[0xeb22b]: PIM RECEIVE->REPEATED_DESIGNATED - MST 0, Port 1/1/2
MSTP: mstp_updtRcvdInfoWhileCist mst=0, Port 1/1/2, rcvdInfoWhile 5->7
MSTP[0xeb22f]: PTX IDLE->TRANSMIT_PERIODIC - Port 1/1/1
MSTP[0xeb22f]: PTX IDLE->TRANSMIT_PERIODIC - Port 1/1/2
MSTP[0xeb23f]: PRX RECEIVE->RECEIVE - Port 1/1/1
MST 0, Port 1/1/1 - received BPDU
				[0xeb23f] (802.1s) 0000 03 02 7c 80000012f2dbfd80 00000000
				80000012f2dbfd80 00000000 8001 0000 0014 0002 000f 80000012f2dbfd80 14
				{0xac36177f50283cd4b83821d8ab26de62}
MSTP[0xeb23f]: PIM CURRENT->RECEIVE - MST 0, Port 1/1/1
MSTP[0xeb23f]: PIM RECEIVE->REPEATED_DESIGNATED - MST 0, Port 1/1/1
MSTP: mstp_updtRcvdInfoWhileCist mst=0, Port 1/1/1, rcvdInfoWhile 5->7
MSTP[0xeb23f]: PRX RECEIVE->RECEIVE - Port 1/1/2
MST 0, Port 1/1/2 - received BPDU
				[0xeb23f] (802.1s) 0000 03 02 3c 80000012f2dbfd80 00000000
				80000012f2dbfd80 00000000 8002 0000 0014 0002 000f 80000012f2dbfd80 14
				{0xac36177f50283cd4b83821d8ab26de62}
MSTP[0xeb23f]: PIM CURRENT->RECEIVE - MST 0, Port 1/1/2
MSTP[0xeb23f]: PIM RECEIVE->REPEATED_DESIGNATED - MST 0, Port 1/1/2
MSTP: mstp_updtRcvdInfoWhileCist mst=0, Port 1/1/2, rcvdInfoWhile 5->7
MSTP[0xeb243]: PTX IDLE->TRANSMIT_PERIODIC - Port 1/1/1
MSTP[0xeb243]: PTX IDLE->TRANSMIT_PERIODIC - Port 1/1/2
MSTP[0xeb253]: PRX RECEIVE->RECEIVE - Port 1/1/1
MST 0, Port 1/1/1 - received BPDU
				[0xeb253] (802.1s) 0000 03 02 7c 80000012f2dbfd80 00000000
				80000012f2dbfd80 00000000 8001 0000 0014 0002 000f 80000012f2dbfd80 14
				{0xac36177f50283cd4b83821d8ab26de62}