Allied Telesis AT-S62 - Manual (Page 261)

AT-S62 Web Browser Interface User’s Guide
Section IV: Spanning Tree Protocols 261
❑ MaxAge must be less than (2 x (ForwardingDelay - 1))
Bridge Max Hops
MSTP regions use this parameter to discard BPDUs. The Max Hop
counter in a BPDU is decremented every time the BPDU crosses an
MSTP region boundary. Once the counter reaches zero, the BPDU
is deleted.
Revision Level
The revision level of an MSTP region. This is an arbitrary number
that you assign to a region. The revision level must be the same on
all bridges in a region. Different regions can have the same
revision level without conflict. The range is 0 (zero) to 255.
CIST Priority
The priority number for the bridge. This number is used in
determining the root bridge of the bridged network. This number
is analogous to the RSTP bridge priority value. The bridge in the
network with the lowest priority number is selected as the root
bridge. If two or more bridges have the same bridge or CIST
priority values, the bridge with the numerically lowest MAC
address becomes the root bridge.
6. Once you have adjusted the parameters, click the Apply button.
7. To permanently save the changes, select the Save Config menu
selection.
Associating
VLANs to MSTIs
This section explains how to create and delete MSTI IDs and how to
associate VLANs to MSTI IDs.
To manage the MSTI ID and VLAN associations, perform the following
procedure:
1. Display the Spanning Tree Expanded Web Page for MSTP by
performing Steps 1 through 4 in the procedure Configuring MSTP and
CIST Parameters on page 258.