User guide

7-6 SUMMIT SWITCH INSTALLATION AND USER GUIDE
S PANNING T REE P ROTOCOL (STP)
Table 7-1 shows the commands used to conÞgure STP.
Table 7-1: STP Configuration Commands
Command Description
create stpd <stpd_name> Creates an STPD. When created, an STPD has
the following default parameters:
■ Bridge priority — 32,768
■ Hello time — 2 seconds
■ Forward delay — 15 seconds
enable stpd [<stpd_name> | all] Enables the STP protocol for one or all STPDs.
The default setting is disabled.
enable stpd port <portlist> Enables the STP protocol on one or more ports.
If STPD is enabled for a port, BPDUs will be
generated on that port if STP is enabled for the
associated STPD. The default setting is enabled.
config stpd <stpd_name> add vlan <name> Adds a VLAN to the STPD.
config stpd <stpd_name> delete vlan
[<name> | all]
Removes one or all VLANs from an STPD. If all
is specified, the association between the STPD
and VLAN is removed, but both are still
instantiated.
config stpd <stpd_name> hellotime <value> Specifies the time delay (in seconds) between
the transmission of BPDUs from this STPD when
it is the Root Bridge.
The range is 1 through 10. The default setting is
2 seconds.
config stpd <stpd_name> forwarddelay
<value>
Specifies the time (in seconds) that the ports in
this STPD spend in the listening and learning
states when the Switch is the Root Bridge.
The range is 4 through 30. The default setting is
15 seconds.
config stpd <stpd_name> maxage <value> Specifies the maximum age of a BPDU in this
STPD.
The range is 6 through 40. The default setting is
20 seconds.
Note that the time must be greater than, or equal
to 2 X (Hello Time + 1) and less than, or equal to
2 X (Forward Delay –1).
SUMMIT.BK Page 6 Thursday, September 25, 1997 12:33 PM