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Example 2
Example 3
1272
|
Rapid Spanning Tree Protocol (RSTP)
Figure 50-5. show spanning-tree rstp with EDS and LBK
FTOS#show spanning-tree rstp br
Executing IEEE compatible Spanning Tree Protocol
Root ID
Priority 32768, Address 0001.e801.6aa8
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID
Priority 32768, Address 0001.e801.6aa8
We are the root
Configured hello time 2, max age 20, forward delay 15
Interface
Name
PortID
Prio Cost
---------- -------- ---- ------- --- ------- -------------------- --------
Gi 0/0
128.257
128
Interface
Name
Role
PortID
---------- ------ -------- ---- ------- --- ------- --------- ----
Gi 0/0
ErrDis 128.257
FTOS#show spanning-tree rstp
Root Identifier has priority 32768, Address 0001.e801.6aa8
Root Bridge hello time 2, max age 20, forward delay 15, max hops 0
Bridge Identifier has priority 32768, Address 0001.e801.6aa8
Configured hello time 2, max age 20, forward delay 15, max hops 0
We are the root
Current root has priority 32768, Address 0001.e801.6aa8
Number of topology changes 1, last change occured 00:00:31 ago on Gi 0/0
Port 257 (GigabitEthernet 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
Figure 50-6. show spanning-tree rstp guard Command Example
FTOS#show spanning-tree rstp guard
Interface
Name
Instance
---------
--------
Gi 0/1
0
Gi 0/2
0
Gi 0/3
0
Table 50-1. show spanning-tree rstp guard Command Information
Field
Description
Interface Name
RSTP interface
Instance
RSTP instance
Sts
Port state: root-inconsistent (INCON Root), forwarding (FWD), listening (LIS),
blocking (BLK), or shut down (EDS Shut)
Guard Type
Type of STP guard configured (Root, Loop, or BPDU guard)
Sts Cost
20000
EDS 0
32768 0001.e801.6aa8 128.257
Prio Cost
Sts Cost
128
20000
EDS 0
Sts
Guard type
---------
----------
INCON(Root)
Rootguard
FWD
Loopguard
BLK
Bpduguard
Designated
Bridge ID
PortID
Link-type Edge
P2P
No
LBK_INC means
Loopback BPDU
Inconsistency
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