Allied Telesis AT-S60 - Manual (Page 510)

AT-S60 Management Software User’s Guide
Section IV: Web Browser Management 509
Note
This procedure explains the Configure MSTP Parameters section of
the page. The CIST/MSTI Table is explained in Adding, Removing,
or Modifying VLAN Associations to MSTIs on page 513. The
graphic image of the switch is described in Configuring MSTP Port
Parameters on page 515.
5. In the Configure MSTP Parameters section, adjust the parameters as
needed. The parameters are described below.
Force Version
This selection determines whether the bridge operates with MSTP
or in an STP-compatible mode. If you select MSTP, the bridge
operates all ports in MSTP, except those ports that receive STP or
RSTP BPDU packets. If you select Force STP Compatible, the
bridge uses its MSTP parameter settings, but sends only STP BPDU
packets from the ports. The default is MSTP.
Bridge Hello Time
The time interval between generating and sending configuration
messages by the bridge. This parameter can be from 1 to 10
seconds. The default is 2 seconds. This value is active only if the
bridge is selected as the root bridge of the network.
Bridge Forwarding
The waiting period before a bridge changes to a new state, for
example, becomes the new root bridge after the topology
changes. If the bridge transitions too soon, not all of the links may
have adapted to the change, possibly resulting in a network loop.
The range is from 4 to 30 seconds. The default is 15 seconds. This
setting applies only to ports running in the STP-compatible mode.
Configuration Name
The name of the MSTP region. The range is 0 (zero) to 32
alphanumeric characters in length. The name, which is case-
sensitive, must be the same on all bridges in a region. Examples of
a configuration name include Sales Region and Production
Region.
Bridge Max Age
The length of time after which stored bridge protocol data units
(BPDUs) are deleted by the bridge. This parameter applies only if
the bridged network contains an STP or RSTP single-instance
spanning tree. Otherwise, the bridges use the Max Hop counter to
delete BPDUs.