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Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
OL-2239-05
Chapter1 Overview of Cisco uBR7200 Series Software
cops tcp window-size
The cable intercept command can be used to comply with the United States Federal Communications
Assistance for Law Enforcement Act (CALEA) and other law enforcement wiretap requirements for
voice communications.
Syntax Description
For additional command information, refer to the Cisco Broadband Cable Command Reference Guide.
Cable Interface Bundling and Cable Subinterfaces
Support for cable interface bundling on the Cisco uBR7200 series commences with Cisco IOS Release
12.2(4)XF1 and continues with later Cisco 12.2 BC releases.
To reduce the number of subnets consumed per Cisco CMTS, cable interface bundling is used. Multiple
cable interfaces can share a single IP subnet. An IP subnet is required for each bundle. You can bundle
all cable interfaces on a Cisco CMTS into a single bundle.
Note Cable interface bundling is applicable only in two-way cable configurations. It is not supported in
telco-return configurations.
Using the CLI, first configure a master interface for a cable interface bundle. The master interface has
an IP address assigned and is visible for IP routing functionality. After you configure the master
interface, add additional cable interfaces to the same interface bundle. Those interfaces must not have
an IP address assigned. You can also configure multiple bundle interfaces.
Use the following commands to configure and view cable interface bundles:
[no] cable bundle n master
show cable bundle
Up to four interface bundles can be configured. In each bundle, specify exactly one interface as the
master interface, using the "master" keyword. In the case of a subinterface over a cable bundle, `x' is the
interface number of the bundle master [1]. The subinterface number starts from 1.
Caution Configure an IP address on the master interface only. An attempt to add an interface to a bundle will be
rejected if an IP address is configured and the interface is not specified as a master interface.
When bundling cable interfaces, only the interface configured to be the bundle master is allowed to have
subinterfaces. An interface that has subinterface(s) defined over it will not be allowed to be part of a
bundle. MIB objects on cable interface bundles are not supported as of the date of this publication.
For more information on cable bundling, refer to these documents on Cisco.com:
• Cable Interface Bundling for the Cisco uBR7200 Series Cable Router feature module:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/
120limit/120xr/bundling.htm
• Bundling Cable Interfaces Sample Configuration and Verification, TAC Document ID 44122
http://www.cisco.com/en/US/products/hw/cable/ps2217/
products_configuration_example09186a00801ae255.shtml
mac-address Specifies the MAC address to be intercepted.
ip-address Specifies the IP address for the destination data collector.
udp-port Specifies the destination UDP port number for the intercept stream at the
data collector. Valid range is 0 to 65535.