Chapter 3 - Configuring the REX2

Viewing Spanning Tree Status

Access the Spanning Tree Status screen to view the configured parameters as well as information about both the bridge Line and the LAN ports. From the Bridge Configuration screen (page 3-32), type 2 then press ENTER to access the Spanning Tree Configuration screen. Item 10 which allows you to view Spanning Tree Status is available only when Spanning Tree Protocol is enabled.

1To view Spanning Tree status, from the Spanning Tree Configuration screen type 1 + 0 then press ENTER .

Jul 07, 2003

ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34

Local Unit ID:

 

 

 

Local I/F: REX2

Remote Unit ID:

 

 

 

Remote I/F: REX2

Circuit ID:

 

 

 

 

 

 

SPANNING TREE STATUS

 

Root Bridge:

 

 

00:20:A7:01:02:08 (this unit)

Root Port:

 

 

0

 

Root Bridge Priority:

 

32768

 

Root Path Cost:

 

0

 

Root Max Age (sec):

 

20

 

Root Hello Time (sec):

 

2

 

Root Forward Delay (sec):

15

 

Time since last Topology Change (sec):

25883

 

Number of Topology Changes:

4

 

 

 

LAN

 

LINE

Port State:

 

listening

 

listening

Designated Bridge:

00:20:A7:01:02:08

00:20:A7:01:02:08

Designated Port ID:

1

 

2

Designated Port Cost:

0

 

0

 

 

(R)eturn (M)ain

Menu

 

ENTER CHOICE>

 

 

 

 

This screen displays configured parameters and statistics for Spanning Tree Protocol. Spanning Tree Status indicates the following:

Root Bridge indicates the MAC address of the root bridge. You are notified when the Campus-REX2 is designated the root bridge.

Root Port, Root Bridge Priority, and Root Path Cost indicates the calculated values for each of these functions for the Campus-REX2 after the resolution of Spanning Tree (resolves network topology).

Root Max Age indicates the reported maximum age for Spanning Tree information before it is discarded.

Root Hello Time is the reported time interval in seconds when the Campus-REX2 sends Spanning Tree Protocol packets (BPDUs).

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Campus-REX2 RS Interface Card User Manual