Extreme Networks Summit WM3000 Series Reference Manual page 222

Network Setup
The Bridge Instance tab displays the following:
ID
Bridge Priority
Bridge ID
Designated Root
Internal Root Cost
Root Port
Master Port
VLANs
3 Select an ID and click the Edit button to revise its attributes.
4 Select an ID and click the Delete button to remove from the list.
5 Select either the Add VLANs or Delete VLANs buttons to add or remove the VLANs used with this
MSTP instance.
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Displays the ID of the MSTP instance.
Displays the bridge priority for the associated instance.
The Bridge Priority is assigned to an individual bridge based on whether
it is selected as the root bridge. The lower the priority, the greater
likelihood the bridge becoming the root for this instance.
Bridge ID Displays the bridge id of the bridge for this instance.
Displays the ID of the root bridge that sent the BPDU received on this
port.
Displays the configured path cost on a link connected to this port within
the internal MSTP region.
Root Port Displays the Port ID of the root port for this instance.
Master Port Displays the Port ID of the master port, if any, for this
instance.
VLANs Displays the list of VLANs included in this MSTP instance.
Summit WM3000 Series Controller System Reference Guide