When upgrading to Cisco IOS Release 12.3(21)BC or later from an
earlier release, virtual bundles and bundle members are created and configured
automatically. Standalone cable interfaces must be manually configured to be in
a virtual bundle to operate properly.
When upgrading to Cisco IOS Release 12.3(13a)BC from an earlier
release, it may be necessary to reconfigure all cable interface bundling
information after loading the Cisco IOS software image. In this circumstance,
cable modems do not receive an IP address from the Cisco CMTS until cable
interfaces and cable interface bundling is reconfigured.
To enable virtual
interface bundling, and to reconfigure interface information on the Cisco CMTS
as required, you first configure the virtual interface bundle, then add
additional bundle members for the specified virtual bundle. Perform these steps
on each interface, as needed for all virtual interface bundles.
To remove a
virtual bundle from the interface, use the
bundle command in interface configuration mode,
specifies the bundle identifier:
If you remove a
member from a bundle, the bundle remains on the interface (even if empty) until
the bundle itself is specifically removed.
In releases prior to
Cisco IOS Release 12.3(21)BC, if you remove a bundle from an interface that
still has active members, the bundle is removed.
For more information on configuring IPv6 parameters for bundle
Cable feature guide.