3Com 5500G-EI Command Reference Guide - Page 319

To display a brief STP summary for the Switch, enter the following

Page 319 highlights

RSTP Configuration Commands 323 Maximum transmission limit is 3 Packets / hello time Times: Hello Time 2 sec, Max Age 20 sec Forward Delay 15 sec, Message Age 0 BPDU sent: 0 TCN: 0, RST: 0, Config BPDU: 0 BPDU received: 0 TCN: 0, RST: 0, Config BPDU: 0 Table 50 Display information Field Description Protocol mode Current Switch is executing RSTP. The bridge ID (Pri.MAC): 32768.00e0-fc00-5600 The bridge times: Hello Time 2 sec, Max Age 20 sec, Forward Delay 15 sec Root bridge ID(Pri.MAC): 32768.00e0-fc00-5600 The RSTP configuration of the Switch, including priority and MAC address of local bridge, Configured time parameter (Hello Time, Max Age, Forward Delay), priority and MAC address of root bridge, the path cost from this Switch to the root path cost mode, timeout time. Root path cost: 0 Bridge bpdu-protection: disabled Default path cost standard is dot1t Timeout factor: 3 Port 2 (GigabitEthernet1/0/2) of bridge is DOWN Port spanning tree protocol: enabled Port role: Disabled Port Port path cost: 200000 Port priority: 128 Designated bridge ID(Pri.MAC): 32768.00e0-fc00-5600 The Port is a non-edged port Connected to a non-point-to-point LAN segment The RSTP configuration of port 2, including the port's status is down, the port RSTP is enabled, this port is Disabled Port, the cost to root of this port , the priority of this port, the priority and MAC address of Designated bridge, this port is configured as a non-edge port, the link of this port is non-point-to-point, Maximum transmission limit is 3 BPDUs per hello time, configured RSTP time parameters(Hello Time, Max Age, Forward Delay, Message Age), the statistics of BPDU (TCN specifies the number of topology-change-notify datagram, RST specifies the number of RSTP datagram, Config BPDU specifies the number of STP datagram) Maximum transmission limit is 3 Packets / hello time Times: Hello Time 2 sec, Max Age 20 sec Forward Delay 15 sec, Message Age 0 BPDU sent: 0 TCN: 0, RST: 0, Config BPDU: 0 BPDU received: 0 TCN: 0, RST: 0, Config BPDU: 0 To display a brief STP summary for the Switch, enter the following: display stp brief The summary is displayed as shown in the following example. unitID 2 Port Ethernet2/0/6 Role STP State Protection PA DISA FORWARDING NONE NONE

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RSTP Configuration Commands
323
Maximum transmission limit is 3
Packets / hello time
Times: Hello Time 2 sec,
Max Age 20 sec
Forward Delay 15 sec, Message Age 0
BPDU sent:
0
TCN: 0, RST: 0, Config BPDU: 0
BPDU received: 0
TCN: 0, RST: 0, Config BPDU: 0
To display a brief STP summary for the Switch, enter the following:
<SW5500>
display stp brief
The summary is displayed as shown in the following example.
unitID
Port
Role
STP State
Protection
PA
2
Ethernet2/0/6
DISA
FORWARDING
NONE
NONE
Table 50
Display information
Field
Description
Protocol mode
Current Switch is executing RSTP.
The bridge ID (Pri.MAC):
32768.00e0-fc00-
5600
The bridge times: Hello Time 2 sec, Max
Age 20 sec, Forward Delay 15 sec
Root bridge ID(Pri.MAC):
32768.00e0-fc00-
5600
Root path cost: 0
Bridge bpdu-protection: disabled
Default path cost standard is dot1t
Timeout factor: 3
The RSTP configuration of the Switch, including
priority and MAC address of local bridge, Configured
time parameter (Hello Time, Max Age, Forward
Delay), priority and MAC address of root bridge, the
path cost from this Switch to the root path cost
mode, timeout time.
Port 2 (GigabitEthernet1/0/2) of bridge
is DOWN
Port spanning tree protocol: enabled
Port role: Disabled Port
Port path cost: 200000
Port priority:
128
Designated bridge ID(Pri.MAC):
32768.00e0-fc00-
5600
The Port is a non-edged port
Connected to a non-point-to-point LAN
segment
Maximum transmission limit is 3
Packets / hello time
Times: Hello Time 2 sec,
Max Age 20
sec
Forward Delay 15 sec, Message Age 0
BPDU sent:
0
TCN: 0, RST: 0, Config BPDU: 0
BPDU received: 0
TCN: 0, RST: 0, Config BPDU: 0
The RSTP configuration of port 2, including the
port’s status is down, the port RSTP is enabled, this
port is Disabled Port, the cost to root of this port ,
the priority of this port, the priority and MAC address
of Designated bridge, this port is configured as a
non-edge port, the link of this port is
non-point-to-point, Maximum transmission limit is 3
BPDUs per hello time, configured RSTP time
parameters(Hello Time, Max Age, Forward Delay,
Message Age), the statistics of BPDU (TCN specifies
the number of topology-change-notify datagram,
RST specifies the number of RSTP datagram, Config
BPDU specifies the number of STP datagram)