N8406-023 1Gb Intelligent L3 Switch Command Reference Guide (ISCLI) 34
Common Internal Spanning Tree information
The following command displays Common Internal Spanning Tree (CIST) information:
show spanning-tree mstp cist information
Command mode:
All
Mstp Digest: 0xac36177f50283cd4b83821d8ab26de62
Common Internal Spanning Tree:
VLANs: 1 3-4094
Current Root: Path-Cost Port MaxAge FwdDel
8000 00:03:42:fa:3b:80 11 1 20 15
CIST Regional Root: Path-Cost
8000 00:03:42:fa:3b:80 11
Parameters: Priority MaxAge FwdDel Hops
32768 20 15 20
Port Prio Cost State Role Designated Bridge Des Port Hello Type
---- ---- ---- ------ ---- --------------------- -------- ----- ----
1 128 2000 FWD DESG 8000-00:03:42:fa:3b:80 8001 4 P2P,Edge
2 128 2000 FWD DESG 8000-00:03:42:fa:3b:80 8002
3 128 2000 DSB
4 128 2000 DSB
5 128 2000 DSB
6 128 2000 DSB
7 128 2000 DSB
8 128 2000 DSB
9 128 2000 DSB
10 128 0 DSB
11 128 2000 FWD DESG 8000-00:03:42:fa:3b:80
12 128 2000 DSB
In addition to seeing if Common Internal Spanning Tree (CIST) is enabled or disabled, you can view the following
CIST bridge information:
CIST root
CIST regional root
Priority
Maximum age value
Forwarding delay
Hops
You can also refer to the following port-specific CIST information:
Port number and priority
Cost
State
Role
Designated bridge and port
Hello interval
Link type and port type