Cisco VGD-1T3, Руководство по настройке программного обеспечения

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Basic Configuration Using the Command-Line Interface on the Cisco VGD 1T3 Voice Gateway
Configuring a Channelized T3 Feature Card
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Cisco VGD 1T3 Voice Gateway Software Configuration Guide
This step verifies that you have IP connectivity with another device on the subnet. If the ping to the
default gateway succeeds, try pinging the DNS server in your backbone. Make sure that the backbone
routers are configured to get to the gateway; otherwise, the ping does not work. Configure the backbone
routers to support the routes to the networks you are using.
Note An 80 percent ping-success rate is normal for the first time you ping an external device. The
Cisco VGD 1T3 voice gateway does not have an Address Resolution Protocol (ARP) entry for the
external device. A 100 percent success rate is achieved the next time you ping the device.
Configuring a Channelized T3 Feature Card
The Cisco VGD 1T3 voice gateway supports the channelized T3 (CT3) feature card only. The CT3 card
offers 28 individual T1 channels (bundled in the T3 line) for serial transmission of data. The channelized
T3 link supports the maintenance data link channel in C-Bit parity mode and also payload and network
loopbacks. The T1 channels multiplexed in the channelized T3 link support facilities data link (FDL) in
extended super frame (ESF) framing.
Controller Numbering
The channelized T3 controller numbering convention is slot/ds3 port in CLI commands. Feature card
slot numbering starts from the motherboard and works up from left to right. Slot 0 is reserved for the
motherboard. Feature card slots are numbered sequentially from 1 to 7. Port number value is always 0.
Under the channelized T3, the T1 channel numbering convention is slot/ds3 port:ds1 port in CLI
commands. The port number is always 0 for the CT3 card. The DS1 port numbering values range from
1 to 28.
Command Purpose
Step 1
Router> enable
Enters privileged EXEC mode.
Step 2
Router# configure terminal Enters global configuration mode. You are in
global configuration mode when the prompt
changes to
Router(config)#.
Step 3
Router(config)# controller t3 1/0
Enters controller configuration mode to configure
your T3 controller for slot 1 port 0. Slot values
range from 1 to 7. Port number is always 0.
Step 4
Router(config-controller)# framing c-bit
Enters the telco framing type: c-bit or m23.
Step 5
Router(config-controller)# clock source
line
Enters line clock source: internal or line.
Step 6
Router(config-controller)#
cablelength 450
Enters the cable length: values range from 0 to
450 feet.