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C H A P T E R 9 Spanning Tree Protocol (STP)
129
Configuring STP
We recommend that you do not configure STP parameters unless
you have considerable knowledge and experience with STP. The
default STP parameters are adequate for most networks.
To configure STP:
STPD, VLAN, and QoS
profile names must be
unique. For example, a
name used to identify a
VLAN cannot be used for
an STPD or a QoS profile.
1. Create one or more STP domains using this command:
create stpd <stpd_name>
2. Add one or more VLANs to the STPD using this command:
configure stpd <stpd_name> add vlan <name>
3. Enable STP for one or more STP domains using this command:
enable stpd {<stpd_name>}
All VLANs belong to an STPD. If you do not want to run STP on a
VLAN, you must add the VLAN to an STPD that is disabled.
After you create the STPD, you can optionally configure STP
parameters for the STPD.
You can configure these parameters on each STPD:
• Hello time (default value 2 seconds)
• Forward delay (default value 15 seconds)
• Max age (default value 20 seconds)
• Bridge priority (default value 32768)
You can configure these parameters on each port:
• Path cost
• Port priority
The device supports the RFC 1493 Bridge MIB. You can only
access the parameters of the s0 default STPD through this MIB.
Table 9.3 lists the commands used to configure STP. Press the Tab
key in the command line interface for further command options.