The Source Routing Configuration Window 3-29

Using the TSX-1620 Bridge View
Designated Bridge
Displays the MAC address and priority component of the Bridge ID for the bridge
that is believed to be the Designated Bridge for the network segment associated
with this port.
The Designated Bridge ID, along with the Designated Port and Port Identifier
parameters for the port, is used to determine whether this port should be the
Designated Port for the network segment to which it is attached.
Designated Port
The Port ID of the port on the Designated Bridge for this port’s segment. The
Designated Port is the bridge port that offers the lowest path cost to the Root
Bridge.
Forward Transitions
The number of times this port has moved from the Learning state to the
Forwarding state since the device was started or since it was last reset.

Changing a Port’s STA Parameters

To change a port’s Priority or Path Cost:
1. In the scroll list, click mouse button 1 on the port you want to change (use the
scroll bar if necessary to display the desired port). You can only select one
port at a time. The highlighted port’s Spanning Tree parameters appear in the
boxes below the list.
2. Highlight and edit the Priority and Path Cost boxes as required. After you
type in the new value in a box, press Enter or Return on the keyboard.
The Source Routing Configuration Window
The Source Routing Configuration window allows you to view, set, and change
Source Routing configuration options for ports on the TSX-1620. Using this
window, you can assign logical ring numbers to the TSX-1620’s physical ports via
the Local Segment field. If you assign the same local segment number to multiple
physical ports, the TSX-1620 will treat all segments attached to those ports as if
they were on the same physical ring.
To open the Source Routing Configuration window from the Bridge Traffic View:
1. Display the Device menu by clicking on the Front Panel button.
2. Drag down to SR Configuration.
or
1. In the Bridge Traffic View, click mouse button 3 on a port to display the Port
menu underage down to SR Configuration.