User Manual

Enterasys X-Pedition User Reference Manual 85
Configuring a Port- or Protocol-Based VLAN
Defining the Maximum Age
If a bridge does not hear BPDUs from the root bridge within a specified interval, it assumes that the
network has changed and recomputes the spanning-tree topology.
To change the default interval setting, enter the following command in Configure mode:
Adjusting RSTP parameters
Since 1-second link reconfiguration can happen only on a point-to-point link or an edge port (a port
that is known to be on the edge of a bridged LAN), you may want to define them administratively
using the following:
Configuring a Port- or Protocol-Based VLAN
To create a port or protocol based VLAN, perform the following steps in the Configure mode.
1. Create a port or protocol based VLAN.
2. Add physical ports to a VLAN.
Creating a Port or Protocol-Based VLAN
To create a VLAN, enter the following command in Configure mode.
Change the amount of time a bridge will wait
to hear BPDUs from the root bridge for
default spanning tree.
stp set bridging max-age <num>
Change the amount of time a bridge will wait
to hear BPDUs from the root bridge for a
particular instance of spanning tree.
pvst set bridging spanning-tree <string> max-
age
<num>
Specify a link in the default spanning tree as a
point-to-point link [ForceTrue], a non-point-
to-point link [ForceFalse], or as determined by
the XP
stp set port <port-list> point-to-point
[ForceTrue|ForceFalse|Auto]
Specify a link in a particular spanning tree
instance as a point-to-point link [ForceTrue], a
non-point-to-point link [ForceFalse], or as
determined by the XP
pvst set port <port-list> point-to-point
[ForceTrue|ForceFalse|Auto] spanning-tree
<string>
Create a VLAN. vlan create <vlan-name> <type> id <num>