Identifying The Cable Interface Line Card - Cisco uBR10012 Software Configuration Manual
Universal broadband router
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- Hardware installation manual (280 pages) ,
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Chapter 2
Configuring the Cable Modem Termination System for the First Time
The MAC addresses are assigned to the slots in sequence. This address scheme allows you to remove
line cards and insert them into other Cisco uBR10012 router without causing the MAC addresses to
move around the network or be assigned to multiple devices.
Storing the MAC addresses for every slot in one central location means that the addresses stay with the
memory device on which they are stored.
Identifying the Cable Interface Line Card
Identifying CM Line Cards
The following Cisco cable interfaces can be installed in a Cisco CMTS:
•
Identifying CM Line Card Slots
On the Cisco uBR10012 router, the cable interface line card is fixed and is always slot 1. To display
information about a specific cable interface slot's downstream channel, use the show interfaces cable
command with the CM card's slot number and downstream port number in the following format:
show interfaces cable slot/downstream-port [downstream]
Use the slot number and downstream port number to display information about a downstream interface.
You can abbreviate the command to sh int c. The following example shows the display for upstream
channel port 0 on a Cisco uBR10012 router:
Router# sh int c 5/0/0
To display information about a specific cable interface slot's upstream channel, use the
show interfaces cable command. Include these CM card parameters:
•
•
•
Use this format:
show interfaces cable slot/downstream-port [upstream] upstream-port
Use the slot number, downstream port number, and upstream port number to display information about
an upstream interface. You can abbreviate the command to sh int c.
The following example shows the display for upstream channel port 0 in cable interface slot 3 of a
Cisco uBR10012 router that is turned up:
Router# sh int c3/0/0 upstream
OL-1520-05
The Cisco uBR10012 router supports one downstream modulator and one upstream demodulator.
The Cisco uBR10012 router supports the following defaults: QAM-256 at 40 MBps
–
downstream, and QAM-16 at 5 Mbps upstream.
The card supports upstream channel widths of 200 kHz, 400 kHz, 800 kHz, 1.6 MHz, and
–
3.2 MHz.
The card outputs +42 dBmV and +/- 2 dBmV.
–
The downstream modulator has both an RF output, using the integrated upconverter, and an
–
intermediate frequency (IF) output, which must be connected to an external upconverter.
Slot number
Downstream port number
Upstream port number
Configuring the Cable Interface with the Extended Setup Facility
Cisco uBR10012 Universal Broadband Router Software Configuration Guide
2-15
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