Table of Contents
Chapter 5
Configuring Channelized mode for the Cisco PA-MC-2T3+
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Normally the T1 link should be configured to use the line clock recovered from the network. In cases
Note
where the network does not provide the clock, such as two PA-MC-2T3+ port adapters connected
back-to-back, one end of the T1 link must be set to internal clock and the other end to line clock.
Setting the FDL Configuration for a T1 Line
To enable and disable 1-second transmissions of performance reports through the facility data link (per
ANSI T1.403 specification), you must use the following command on both ends of the connection:
t1 t1-line-number fdl ansi
where: t1-line-number is 1–28.
Note
You can use this command only when the T1 framing is ESF. Use the no form of the command to disable
remote performance reports.
Setting Loopbacks on a T1 Line
If you have difficulty with the PA-MC-2T3+ configuration or installation, you can troubleshoot the port
adapter using the loopback command. Specify loopback for a T1 line using the following command:
t1 t1-line-number loopback [local | network | remote]
where: t1-line-number is 1–28.
Note
This command requires that you are in T3 controller mode.
fdl loopback commands are available only for T1 lines configured for ESF framing.
Note
Explanations of specific loopback modes follow:
OL-3526-05
Instruct T1 line 1 to use an internal clock source.
The example that follows is for a port adapter on a VIP in interface processor slot 1:
Router(config)# controller T3 1/0/0
Router(config-controller)# t1 1 clock source internal
The example that follows is for a port adapter in slot 1 of the Cisco 7200 series routers:
Router(config)# controller T3 1/0
Router(config-controller)# t1 1 clock source internal
Instruct T1 line 16 to use a line clock source received from the network.
The example that follows is for a port adapter on a VIP in interface processor slot 1:
Router(config)# controller T3 1/0/0
Router(config-controller)# t1 16 clock source line
The example that follows is for a port adapter in slot 1 of the Cisco 7200 series routers:
Router(config)# controller T3 1/0
Router(config-controller)# t1 16 clock source line
PA-MC-2T3+ Multi-Channel T3 Port Adapter Installation and Configuration
Configuring a Channelized T3 Link
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