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    Static VLAN Subinterfaces Within VLAN Subranges Overview

    You can configure a static VLAN subinterface with a single-tagged VLAN ID or double-tagged S-VLAN ID, or an S-VLAN ID with agent-circuit-identifier information that falls within an existing bulk-configured VLAN subrange. Conversely, you can also create a bulk-configured VLAN subrange that includes the single-tagged VLAN ID or double-tagged S-VLAN ID on a static VLAN subinterface. Configuring static VLAN subinterfaces within VLAN subranges can be useful when you want to create a column statically for users who have difficulty logging on. You might also want to configure static VLAN subinterface within a VLAN subrange as a static column to the DSLAM; the dynamic column can be for subscribers.

    The following rules apply when you configure either a static VLAN subinterface within an existing bulk-configured VLAN subrange or a subrange that includes an existing static VLAN interface:

    • You have no restrictions on how to configure the static VLAN subinterface.
    • Static VLAN interfaces defined within a bulk-configured VLAN subrange are stored in NVS and preserved after a reboot.
    • The base profile associated with the VLAN subrange does not apply to any statically defined VLAN interfaces that fall within the subrange.
    • If a VLAN subrange includes a statically defined VLAN subinterface, overriding profile assignments configured for the same VLAN ID as a statically defined VLAN subinterface become inactive until the static VLAN subinterface is removed. The overriding profile becomes active again when you remove the static VLAN subinterface. You can display the current operational status (active or inactive) of overriding profile assignments by using the show vlan bulk-config command.
    • Operations that add, remove, modify, merge, disable, or enable VLAN subranges within a bulk-configured VLAN range do not affect any static VLAN subinterfaces defined within the VLAN subrange.
    • You cannot create a static VLAN if the single-tagged VLAN ID or double-tagged S-VLAN ID conflicts with an existing VLAN dynamic subinterface column. Such a configuration would disrupt subscribers already connected to the router via the dynamic subinterface.

    Published: 2014-08-14