Common Internal Spanning Tree informationCommand: /info/l2/cistMstp Digest: 0xac36177f50283cd4b83821d8ab26de62Common 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 StateRole Designated BridgeDes 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:

Status of Uplink Fast (upfast)

CIST rootCIST regional rootPriority

Maximum age value

Forwarding delay

HopsYou 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 typeThe following table describes the CIST parameters.Table 24 Common Internal Spanning Tree parameter descriptions

Parameter

Description

 

 

 

CIST Root

Shows information about the root bridge for the Common Internal Spanning Tree

 

(CIST). Values on this row of information refer to the CIST root.

 

 

 

CIST Regional Root

Shows information about the root bridge for this MSTP region. Values on this row of

 

information refer to the regional root.

 

 

 

Priority (bridge)

The bridge priority parameter controls which bridge on the network will become the

 

STP root bridge.

 

 

 

 

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