Cisco Systems MC-607 manual Sequence Event Description, MC-628

Configuring Subscriber-End Broadband Access Router Features

Subscriber-End Broadband Access Router Initial Power-Up Sequence

Table 40 Cable Access Router Initialization Sequences and Events (continued)

Sequence	Event	Description
4.	Establish IP connectivity.	After the next MAP message broadcast, the router uses
			a shared require timeslot to invoke DHCP to establish
			IP connectivity with the TCP/IP network at the
			headend.
			The DHCP server sends a response containing the
			router IP address and the IP addresses for the default
			gateway, ToD server, and TFTP server, and the
			DOCSIS configuration file to be downloaded.
			Depending on the particular network configuration,
			other information could be provided, such as the IP
			addresses for a syslog server or security server.
			Note	The DHCP server is typically a dedicated
				server at the headend, but it could also be a
				CMTS such as a Cisco uBR7200 series
				universal broadband router.
			The router configures itself for the specified IP address
			and gets the current date and time from the specified
			ToD server.
5.	Establish the time of day.	The cable access router accesses the ToD server for the
			current date and time, which is used to create time
			stamps for logged events (such as those displayed in
			the MAC log file).
6.	Establish security.		Full Security, a planned enhancement to Baseline
			Privacy, is not fully defined nor currently supported by
			the DOCSIS specification, and is therefore not
			supported by the Cisco uBR900 series.

Cisco IOS Multiservice Applications Configuration Guide

MC-628