Configuring The E3 Uni Module - 3Com 3C63100-AC-C - PathBuilder S600 Bridge/router Reference Manual

Configuring the E3
UNI Module
3 Configure virtual interfaces for the DS3 UNI card.
a Select [2] Virtual Interfaces to open the DS3 UNI Virtual Interfaces
Configuration menu. This menu is the same as the MCPU Virtual Interfaces
menu, shown earlier in Figure 83.
b Configure virtual interfaces as described under "Configuring Virtual Interfaces"
earlier in this chapter. You configure virtual interfaces for the DS3 UNI card in
the same way that you configure virtual interfaces for the MCPU card, except
that you can configure 24 VIs total for the DS3 UNI card, as opposed to 2 for
the MCPU card.
Configuring the E3 UNI module involves the following tasks:
Configuring the card
n
Configuring the virtual interfaces
n
To configure the E3 UNI module, follow these steps:
1 From the List Card menu, select the slot number corresponding to the E3 UNI
module to display the E3 UNI Configuration menu.
The E3 UNI Configuration menu is the same as the OC3/STM-1 UNI Configuration
menu shown earlier in Figure 88. The options on this menu allow you to access
other menus from which you can configure either card configuration information
or virtual interfaces.
2 Configure the E3 UNI card.
a Select [1] Card Information to display the E3 UNI Card Configuration menu.
The E3 UNI Card Configuration menu is similar to the OC3/STM-1 UNI Card
Configuration menu shown earlier in Figure 89. It displays the current
configuration for the E3 UNI module and provides options for changing certain
parameters.
b Set the following parameters as desired:
Admin Status—Administrative Status: In Service or Out of Service.
ATM Cell Mapping—How the carrier will provision the E3 UNI service from
the carrier ATM switch: Clear (HEC).
ATM Payload Scramble—Enables (yes) or disables (No) payload scrambling
for the E3 port. Payload scrambling scrambles the 48-byte payload in outgoing
cells in a defined manner and unscrambles the payload in incoming cells. It is a
technique used to avoid certain transmission equipment behaviors (for
example, erroneous alarm conditions) that are caused by sensitivity to certain
bit patterns in the ATM payload.
Peak Rate—The peak E3 payload Mbps: 5 to 34. This parameter is a feature
specifically designed for the PathBuilder S600. It allows you and your service
provider to traffic shape all connections to an optimum rate, assigned as part
of the ATM service contract.
E3 Timing Source—The timing source for the E3 transmit clock: system or
loop. If you set the E3 Timing Source to system at one end of the E3 trunk, you
must set it to loop at the other end.
System—Configures the port interface to use the system reference clock
within the shelf as a reference for transmitting.
Configuring the E3 UNI Module 127