Configuring Portfast - Avaya 2330 Manual

Multiple Spanning Tree Protocol configuration
Table 65: Variable definitions
<slot/port>
priority <value>
Procedure job aid
Path cost on a port is dependent on the bandwidth of the link. In the following figure, Link A
has more bandwidth than Link B. Consequently, Link A is the preferred path. The greater the
bandwidth, the lower the path cost on the port. The port with the least path cost is selected as
the preferred port for traffic transmission.
Similarly, a port can be selected as the preferred path for traffic transmission by changing the
priority on the port to a lower value. The lower the port priority, the greater the chance that the
port is selected for traffic transmission.
You can configure both path cost and priority parameters on a port.
Figure 18: Link bandwidth and priority

Configuring PortFast

Use the procedure in this section to enable and disable rapid transitions.
Enabling rapid transitions with PortFast
Use the procedure in this section to enable rapid transitions.
146 Configuration — Layer 2 Ethernet
Variable
Comments? infodev@avaya.com
Value
The slot and port numbers that identify the
port for which you configure the link priority.
For example, 7/1.
Specifies the link priority that is currently
configured. The default value is 128. Valid
values are 0 to 240.
July 2013