Cisco UBR-MC28U Modem Card UBR7246VXR

welcome to our cable modem termination system tutorial in this brief tutorial we will describe this three parts of a cmts describe the functions provided by a cmts discuss why CMT SS are often used to shape and limit upstream traffic in a cable network and briefly describe the top three cmts vendors before we get on to our cmts topic let's briefly describe some terminology we'll use throughout this tutorial in a cable system the downstream direction refers to data that originates at the cable head end and heads towards a subscriber in comparison the upstream direction refers to data originating in a subscriber and hitting heading towards a cable head in central office in a cable system downstream data typically is broadcast to all subscribers header information in the packets allows the recipient to intercept the data while allowing all other recipients to ignore the packets meant for o