ZyXEL Communications MSC1000G Series, Руководство пользователя

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Chapter 33 switch Commands
Management Switch Card User’s Guide
1016
This command sets the time interval (between 1 and 10 seconds) between BPDU (Bridge Protocol
Data Units) configuration message generations by the root switch.
The following example sets the hello time to 5 seconds.
33.12.6 switch mstp maxage Command
Syntax:
switch mstp maxage < maxage-sec >
This command sets the maximum time (between 6 and 40 seconds) a switch can wait without
receiving a BPDU before attempting to reconfigure.
The following example sets the maximum age to 20 seconds.
33.12.7 switch mstp maxhops Command
Syntax:
switch mstp maxhops < max-hops >
This command sets the number of hops (between 1 and 255) in an MSTP region before the BPDU is
discarded and the port information is aged.
The following example sets the maximum hop count to 20. After 20 hops (or passing through 20
devices), a BPDU is dropped.
33.12.8 switch mstp priority Command
Syntax:
switch mstp priority < mstid > < priority >
where
This command sets the priority of the switch for the specific spanning tree instance. The lower the
number, the more likely the switch will be chosen as the root bridge within the spanning tree
instance.
ras> switch mstp hellotime 5
ras> switch mstp maxage 20
ras> switch mstp maxhops 20
< mstid > =
Index number (between 0-16) to identify a spanning tree instance. For CIST, enter
0. To identify an MSTI, enter a number between 1 and 16.
< priority > =
Priority level (0 ~ 61440) in increments of 4096. The system automatically rounds
the number to the nearest multiples of 4096.