Dell Force10 MXL Blade - Page 380

380 | Multiple Spanning Tree Protocol (MSTP)
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Example 2
Figure 20-6. show spanning-tree msti Command Example with EDS and LBK
Example 3
Figure 20-7. show spanning-tree msti guard Command Example
FTOS#show spanning-tree msti 0 brief
MSTI 0 VLANs mapped 1-4094
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, max hops 20
Bridge ID Priority 32768, Address 0001.e801.6aa8
We are the root of MSTI 0 (CIST)
Configured hello time 2, max age 20, forward delay 15, max hops 20
CIST regional root ID Priority 32768, Address 0001.e801.6aa8
CIST external path cost 0
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID PortID
---------- -------- ---- ------- --- ------- -------------------- --------
TenGig 0/0 128.257 128 20000 EDS 0 32768 0001.e801.6aa8 128.257
Interface
Name Role PortID Prio Cost Sts Cost Link-type Edge Boundary
---------- ------ -------- ---- ------- --- ------- --------- ---- --------
TenGig 0/0 ErrDis 128.257 128 20000 EDS 0 P2P No No
FTOS#show spanning-tree msti 0
MSTI 0 VLANs mapped 1-4094
Root Identifier has priority 32768, Address 0001.e801.6aa8
Root Bridge hello time 2, max age 20, forward delay 15, max hops 20
Bridge Identifier has priority 32768, Address 0001.e801.6aa8
Configured hello time 2, max age 20, forward delay 15, max hops 20
We are the root of MSTI 0 (CIST)
Current root has priority 32768, Address 0001.e801.6aa8
CIST regional root ID Priority 32768, Address 0001.e801.6aa8
CIST external path cost 0
Number of topology changes 1, last change occured 00:00:15 ago on Te 0/0
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 (MRecords): sent 21, received 9
The port is not in the Edge port mode
Loopback BPDU
Inconsistency
(LBK_INC)
Table 20-1. show spanning-tree msti guard Command Information
Field Description
Interface Name MSTP interface
Instance MSTP instance
FTOS#show spanning-tree msti 0 guard
Executing IEEE compatible Spanning Tree Protocol
Bpdu filter disabled globally
Interface
Name Instance Sts Guard type Bpdu Filter
--------- -------- --------- ---------- -----------
Te 0/41 0 FWD None No
Te 0/42 0 FWD None No
Te 0/43 0 FWD None No