Nokia ESB26 User Manual page 182

14.
Example
device-name#debug mstp bpdu rx
MstPRX: 1970/01/01 02:11:46 : Rcvd Mstp bpdu on port 1/2/2
tMstPRX: 1970/01/01 02:11:46 : -------------------------------
tMstPRX: 1970/01/01 02:11:47 : BPDU Protocol = 0
tMstPRX: 1970/01/01 02:11:47 : BPDU Version = 3
tMstPRX: 1970/01/01 02:11:47 : BPDU Type = 2
tMstPRX: 1970/01/01 02:11:47 :
tMstPRX: 1970/01/01 02:11:47 : BPDU Flags = 0x6c
Multiple Spanning Tree Protocol (MSTP)
tMstPRX: 1970/01/01 02:11:47 : BPDU TcAck = 0
tMstPRX: 1970/01/01 02:11:47 : BPDU Agree = 1
tMstPRX: 1970/01/01 02:11:47 : BPDU Frwrd = 1
tMstPRX: 1970/01/01 02:11:48 : BPDU Learn = 0
tMstPRX: 1970/01/01 02:11:48 : BPDU Role = Designated(3)
tMstPRX: 1970/01/01 02:11:48 : BPDU Prop = 0
tMstPRX: 1970/01/01 02:11:48 : BPDU Tc = 0
tMstPRX: 1970/01/01 02:11:48 :
tMstPRX: 1970/01/01 02:11:48 : BPDU Root Id = 0xa071c41880330e12
Debugging the MSTP PRTM
The debug mstp prt command, in Privileged (Enable) mode, displays logs of the Port Role
Transition state Machine in the Multiple Spanning Tree Protocol (MSTP) for a specified port
range. Use the no form of this command to disable the MSTP PRTM debugging.
The debug mstp prt command will not be saved after reload.
By default, MSTP PRTM debugging is disabled.
Command Syntax
device-name#debug mstp prt {all|flags|events|stats} from <P
device-name#no debug mstp prt {all|flags|events|stats}
Argument Description
all Displays logs of all three PRTM options (flags, events, stats) for the specified port range.
flags Displays only the PRTM flags logs for the specified port range.
events Displays only the PRTM events logs for the specified port range.
stats Displays only the PRTM stats logs for the specified port range.
<P > Number of the first port specifying the port range. The number must be in logical port
a
number format.
<P > Number of the last port specifying the port range. The number must be in logical port
z
number format.
Example
device-name# debug mstp prt all from 1 to 20
tMstPRT: 1970/01/01 01:28:27 : PRT eve E_mstAgreed port 20 mst 0
tMstPRT: 1970/01/01 01:28:27 : PRT ACTIVE_PORT -> ROOT port 20 mst 0
tMstPRT: 1970/01/01 01:28:27 : PRT ROOT -> ACTIVE_PORT port 20 mst 0t
MN700004 Rev 01
Multiple Spanning Tree Protocol (MSTP)
171
> to <P >
a z