FTOS Configuration Guide for the C-Series - Force10 Networks

Force10(conf)# protocol spanning-tree pvst
Force10(conf-pvst)# no disable
Context: protocol spanning-tree pvst
Force10(conf-pvst)# vlan 1 hello-time 6
Figure 280 PVST+ Configuration Examples
Configuring the PVST+ refresh interval
Max-age is the length of time the PVST+ bridge maintains configuration information before it refreshes
that information. To change the max-age value in seconds, use the following command in the PVST+
CONFIGURATION mode:
Command Syntax Command Mode Usage
vlan vlan-range max-age
seconds
To configure max-age, use the commands as shown in the example below:
Force10(conf)# protocol spanning-tree pvst
Force10(conf-pvst)# no disable
Context: protocol spanning-tree pvst
Force10(conf-pvst)# vlan 1 max-age 10
Figure 281 PVST+ Configuration Examples
Configuring port cost
conf-pvst Changes the time interval before PVST+
refreshes.
Enter the keyword max-age followed by the time
interval, in seconds, that FTOS waits before refreshing
configuration information.
Range: 6 to 40 seconds
Default: 20 seconds
Force10’s PVST+ implementation uses IEEE MST costs as the default costs. Ensure you use the
appropriate costs in a multi-vendor network as some implementations use IEEE STP costs as the default
costs. The default PVST+ costs are listed below.
Table 41 E-Series Port Cost Values
FTOS Default Port Cost Values (IEEE MST) Values
Range 1 to 200000
100 Mb/s Ethernet interface 200000
1-Gigabit Ethernet interface 20000
10-Gigabit Ethernet interface 2000
FTOS Configuration Guide, version 7.7.1.0 401