Configure I-SIDs for Private VLANs

Before you begin

  • A private VLAN must be created. For more information about creating private VLANs, see Create a Private VLAN.

About this task

Assign one I-SID for each private VLAN.

Procedure

  1. Enter Global Configuration mode:

    enable

    configure terminal

  2. Assign the I-SID to the primary and secondary VLAN.

    vlan i—sid <1-4059> <0-16777215> [force]

Example

Switch:1>enable
Switch:1#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Switch:1(config)#vlan i-sid 5 75
Switch:1(config)#show vlan private-vlan
========================================================================
        PRIVATE VLAN 
========================================================================
Primary              Primary              Secondary            Secondary
VLAN                 ISID                 VLAN                 ISID
------------------------------------------------------------------------
5                    75                    6                    75

Variable Definitions

The following table defines parameters for the vlan i-sid command.

Variable

Value

<1-4059>

Specifies the VLAN ID.

Specifies the VLAN ID in the range of 1 to 4059. By default, VLAN IDs 1 to 4059 are configurable and the system reserves VLAN IDs 4060 to 4094 for internal use. On switches that support the vrf-scaling and spbm-config-mode boot configuration flags, if you enable these flags, the system also reserves VLAN IDs 3500 to 3998. VLAN ID 1 is the default VLAN and you cannot create or delete VLAN ID 1.

<0-16777215>

Specifies the service instance identifier (I-SID). You cannot use I-SID 0x00ffffff. The system reserves this I-SID to advertise the virtual BMAC in an SMLT dual-homing environment.

This value is the same for the primary and secondary VLANs.

force

Specifies the software must replace the existing VLAN-to-I-SID mapping, if one exists.