Filter
Top Products
Configuring the Port Adapter Ports
29
Cisco Communication Media Module for Catalyst 6500 Series Switch and Cisco 7600 Series Router Installation and Verification Note
Configuring the Port Adapter Ports
Configuring the module interfaces is similar to configuring the voice interfaces on other Cisco products.
module interface configuration requirements are dependent on your AVVID network requirements.
Note The module requires a static IP address. Obtaining an IP address through a DHCP server is not
supported. You assign an IP address to the module Gigabit Ethernet backplane interface through the CLI
by using the interface GigabitEthernet1/0 command.
Configuring the Port Adapter Clock Source
The module T1/E1 port adapter clock configuration is the same as the configuration on many other Cisco
gateways. The CLI commands that are used for configuring the clock are identical to other gateways. To
set clocking for individual T1 or E1 ports, enter the clock source command in controller configuration
mode as follows:
clock source {line [primary | secondary {1..17}] | internal}
To return to the default configuration, use the no clock source command.
Note We do not recommend that you use the clock source line command. You must enter either the clock
source line primary command or the clock source line secondary command.
If you configure the clock source for a port adapter port as primary, the Rx clock that is received from
the remote end is used to supply the clock for all module T1/E1 ports that are configured for the internal
clock on that module. Only one port adapter port can be configured as the primary clock source on a
module. If you do not configure any of the port adapter ports as the primary clock source, the internal
TDM system clock uses the free running clock on one of the port adapters.
If you configure the clock source for a port adapter port as secondary, you must also specify the priority
preference level of the source. The system automatically switches among the secondary sources to use
the highest level of preference that has the Rx clock available when the specified primary clock source
is absent.
If you configure the clock source for a port adapter port as internal, the port uses the clock that is
provided by the system. This system clock could be a module internal clock or the Rx clock from the
port that is configured as the primary clock source.