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Cisco Broadband Cable Command Reference Guide
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Chapter 2 Cisco CMTS Configuration Commands
cable upstream max-ports
cable upstream max-ports
To configure the maximum number of upstreams on a downstream (MAC domain) on a
Cisco uBR-MC5X20S/U cable interface line card, use the
cable upstream max-ports
command in
cable interface configuration mode. To reset the card to its default value of 4 upstreams per downstream,
use the
no
form of this command.
cable upstream max-ports
n
no cable upstream max-ports
n
Syntax Description
Defaults
4
Command Modes
Interface configuration (cable interface only)
Command History
Usage Guidelines
Use this command to specify how many upstreams a downstream (MAC domain) will support on the
Cisco uBR-MC5X20S card, before using the
cable upstream connector
command to assign upstreams
to physical ports on the card. The downstreams on a card can be configured for different maximum
upstream values.
After using this command, the valid range for upstreams on that cable interface will be from 0 to one
less than the maximum port value. For example, if you use the
cable upstream max-ports 6
command
to specify a maximum of 6 upstreams for the downstream, the valid range for upstreams will be 0 to 5.
Examples
The following example shows how to configure all of the downstreams on a Cisco uBR-MC5X20S card
for a maximum number of 6 upstreams.
Router#
configure terminal
Router(config)#
interface cable c6/1/0
Router(config-if)#
cable upstream max-ports 6
Router(config-if)#
interface cable c6/1/1
Router(config-if)#
cable upstream max-ports 6
Router(config-if)#
interface cable c6/1/2
Router(config-if)#
cable upstream max-ports 6
Router(config-if)#
interface cable c6/1/3
Router(config-if)#
cable upstream max-ports 6
Router(config-if)#
interface cable c6/1/4
Router(config-if)#
cable upstream max-ports 6
n
The valid range is 1 to 8, with a default of 4.
Release
Modification
12.2(15)BC1
This command was introduced to support the Cisco uBR-MC5X20S
cable interface line card.
12.2(15)BC2
Support was added for the Cisco uBR-MC5X20U cable interface line
card.