Spanning-Tree Rstp - Dell Z9500 Command Reference Manual

Port 257 (TenGigabitEthernet 0/0) is LBK_INC Discarding
Port path cost 20000, Port priority 128, Port Identifier
128.257
Designated root has priority 32768, address 0001.e801.6aa8
Designated bridge has priority 32768, address 0001.e801.6aa8
Designated port id is 128.257, designated path cost 0
Number of transitions to forwarding state 1
BPDU : sent 27, received 9
The port is not in the Edge port mode
Example
Dell#show spanning-tree rstp guard
(Guard)
Interface
Name
--------- -------- -------------------
Te 0/1 0
Te 0/2 0
Te 0/3 0

spanning-tree rstp

Configure an RSTP interface with one of these settings: port cost, edge port with optional bridge port
data unit (BPDU) guard, port priority, loop guard, or root guard.
Z9500
Syntax
spanning-tree rstp {cost port-cost | edge-port [bpduguard
[shutdown-on-violation]] | priority priority | {loopguard |
rootguard}}
Parameters
cost port-cost
edge-port
bpduguard
1588
Instance Sts
INCON(Root) Rootguard
FWD
BLK
Enter the keyword cost then the port cost value. The range
is from 1 to 200000. The defaults are:
• 10-Gigabit Ethernet interface = 2000
• Port Channel interface with one 10-Gigabit Ethernet =
2000
• Port Channel with two 10 Gigabit Ethernet = 1800
Enter the keywords edge-port to configure the interface as
a rapid spanning tree edge port.
(OPTIONAL) Enter the keyword portfast to enable Portfast
to move the interface into Forwarding mode immediately
after the root fails.
Enter the keyword bpduguard to disable the port when it
receives a BPDU.
Guard type
Loopguard
Bpduguard
Rapid Spanning Tree Protocol (RSTP)