Set Optional IP Parameters

Activate IP Multicast Echo

You can activate upstream IP multicast echo so that the Cisco uBR7246 can echo multicast packets. The default is “on” (IP multicast echo is activated). To activate IP multicast echo, use the following command in cable interface configuration mode:

Command

Purpose

cable ip-multicast-echo

Enable IP multicast echo.

 

 

Validation Tips

To verify if IP multicast echo has been activated or deactivated, enter the command more system:running-configand look for the cable interface configuration information. If IP multicast echo has been activated, it does not appear in this output. If IP multicast echo has been deactivated, it appears in this output as no cable ip-multicast-echo as shown in the command output excerpt below:

router# more system:running-config

Building configuration...

Current configuration:

!

interface Cable6/0

ip address 1.1.1.1 255.255.255.0 no keepalive

no cable ip-multicast-echo cable insertion-interval 150000 cable downstream annex B

cable downstream modulation 64qam cable downstream interleave-depth 32 cable downstream symbol-rate 5056941 cable upstream 0 frequency 15008000 cable upstream 0 fec

cable upstream 0 scrambler no cable upstream 0 shutdown

!

Troubleshooting Tips

If you are having trouble, make sure that you have entered the correct slot and port numbers when you entered cable interface configuration mode.

Activate IP Broadcast Echo

You can activate upstream IP broadcast echo so that the Cisco uBR7246 can echo broadcast packets. The default value is “off” (IP broadcast echo is not activated). To activate IP broadcast echo, use the following command in cable interface configuration mode:

Command

Purpose

cable ip-broadcast-echo

Enable IP broadcast echo.

 

 

VC-156Voice, Video, and Home Applications Configuration Guide

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Cisco Systems uBR7246 manual Activate IP Multicast Echo, Activate IP Broadcast Echo

uBR7246 specifications

The Cisco uBR7246 is a versatile edge router designed primarily for cable operators wishing to deliver high-speed Internet, telephony, and video services over hybrid fiber-coaxial (HFC) networks. This router is part of Cisco's extensive line of broadband access solutions, addressing the increasing demand for bandwidth among consumers and businesses alike.

One of the uBR7246's main features is its ability to support a wide range of broadband technologies including DOCSIS (Data Over Cable Service Interface Specification) and EuroDOCSIS. The router is designed to facilitate the delivery of high-speed data services while allowing for flexible configurations that adapt to evolving network technologies. This is crucial for operators looking to maximize their network efficiency and future-proof their infrastructure.

The uBR7246 is equipped with multiple modular slots, enabling service providers to customize the router according to their specific needs. High-capacity interface cards can be added to support various types of connections, such as Ethernet and TDM (Time Division Multiplexing), thus offering scalability. With support for both DOCSIS 1.0 and advanced versions like DOCSIS 3.0 and 3.1, the router can handle increased data rates and offer maximum efficiency in terms of bandwidth utilization.

Security features are integral to the uBR7246, as it employs advanced measures such as encryption and robust authentication protocols to ensure that subscriber data remains secure. This is particularly vital in an era where cyber threats are pervasive, and customer trust is essential.

In terms of performance, the uBR7246 offers exceptional throughput, capable of efficiently managing vast amounts of traffic without degradation of service. Advanced Quality of Service (QoS) mechanisms help prioritize traffic, ensuring that high-demand applications like video streaming and VoIP receive the necessary bandwidth they require for optimal performance.

The router is also designed with operational ease in mind, offering centralized management capabilities through Cisco's suite of management tools. This allows operators to monitor performance, manage configurations, and troubleshoot issues more efficiently, reducing downtime and enhancing service reliability.

In summary, the Cisco uBR7246 is a powerful and flexible solution that meets the demands of modern broadband delivery. Its advanced technologies, modular design, high-level security features, and robust performance make it an ideal choice for cable operators aiming to provide high-quality services to their subscribers while staying ahead of the competition.