Instance – Brocade Network OS Command Reference v4.1.0 User Manual
Page 365
Network OS Command Reference
327
53-1003115-01
instance
2
instance
Maps a VLAN to a Multiple Spanning Tree Protocol (MSTP) instance.
Synopsis
instance instance_id [vlan vlan_id | priority priority_id]
no instance
Operands
instance_id
Specifies the MSTP instance. Valid values range from 1 through 31.
vlan vlan_id
Specifies the VLAN to map an MSTP instance. Refer to the
Usage Guidelines.
priority priority_id Specifies the priority for the specified instance. Valid values range from 0
through 61440. The priority values can be set only in increments of 4096.
Defaults
The priority value is 32768.
Command Modes
Protocol Spanning Tree MSTP configuration mode
Description
Use this command to map a VLAN to an MTSP instance. You can group a set of VLANs to an
instance.
Usage Guidelines
If xSTP is enabled over VCS, this command must be executed on all RBridge nodes.
On the Brocade VDX family of switches, VLANs are treated as interfaces from a configuration point
of view. By default, all the DCB ports are assigned to VLAN 1 (VLAN ID equals 1). Valid VLAN IDs
are as follows:
•
On Brocade VDX 8770 switches: 1 through 4086.for 802.1Q VLANs (VLAN IDs 4087
through 4095 are reserved on these switches).,and 4096 through 8191 for service or
transport VFs in a Virtual Fabrics context.
•
On all other Brocade VDX switches: 1 through 3962 for 802.1Q VLANs (VLAN IDs 3963
through 4095 are reserved on these switches), and 4096 through 8191 for service or
transport VFs in a Virtual Fabrics context.
The following rules apply:
•
VLANs must be created before mapping to instances.
•
VLAN instance mapping is removed from the configuration if the underlying VLANs are
deleted.
Enter no instance to un-map the VLAN from the MSTP instance.
CAUTION
This command can be used only after the VLAN is defined.
Examples
To map a VLAN to an MTSP instance:
switch(conf-mstp)# instance 1 vlan 2,3
switch(conf-mstp)# instance 2 vlan 4-6
switch(conf-mstp)# instance 1 priority 4096
See Also