Chapter 11: Basic Bring-up Procedure for the C4 CMTS
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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Note: Each MAC domain must consist of channels from exactly one 32D CAM and exactly one 24U CAM. In other words,
the MAC domain cannot include ports from more than one 32D CAM or from more than one 24U CAM.
Configure and assign the MAC domain:
configure interface cable-mac 1 description Mac1
configure interface cable-mac 1 cable cm-ip-prov-mode ipv4only
configure interface cable-mac 1 ip address 192.168.180.1 255.255.255.0
configure interface cable-mac 1 cable helper-address 10.43.210.1
configure interface cable-mac 1 no shutdown
CAUTION: If an IPv4 or IPv6 address on a cable interface is changed or removed, or if a subnet mask on a cable interface is
changed, then be well aware that all cable modems and CPEs using addresses on the changed/removed IPv4/IPv6 subnet
will be stranded. They will have no communication with other cable modems or CPEs. The stranded cable modems and
CPEs will remain stranded until they acquire IPv4/IPv6 addresses on a subnet of that interface. Also, CPEs behind a cable
modem that is stranded that attempt to acquire an IP address using DHCP will not have access to the DHCP server. This
modification or removal includes any IPv4/IPv6 address on a cable interface, either primary or secondary. When an IPv4 or
IPv6 address or subnet mask is modified or removed from a cable interface, all IPv4/IPv6 cable modems on that subnet
should be reset.
7. Configure Downstream Parameters
This section configures a single 32D CAM in slot 14. The 32D has the following characteristics:
4 physical connectors: each one can output 8 downstream channels
The downstream channel frequencies are grouped eight per connector. For each connector there is an 80 MHz
frequency range available for those four channels.
DS carriers 0-7 are associated with connector D0
DS carriers 8-15 are associated with connector D1
DS carriers 16-23 are associated with connector D2
DS carriers 24-31 are associated with connector D3
To configure the downstream interfaces, enter:
configure interface cable-downstream 14/0 cable cable-mac 1
configure interface cable-downstream 14/1 cable cable-mac 1