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Configuring E3 UNI
Modules
STX Timing Source—The timing sent to the STX card: PLCP Clock or DS3 Rx
Clock. This is the clock the system will use if you select the DS3 card as the
timing source from the Priority Clock Configuration menu, shown earlier in
Figure 75,
Number of VPI for VCC—The number of distinct VPIs that can be used for
VCCs on this card: 1..256. Any VPIs not currently in use by VCCs are available
for VPCs.
c Select [12] Previous Menu to return to the DS3 Configuration menu.
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 84.
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.
Configuring an E3 UNI module involves the following tasks:
Configuring the card
n
Configuring the virtual interfaces
n
To configure an 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 DS3 UNI Configuration menu
shown earlier in Figure 92. 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,
shown in Figure 94. The E3 UNI Card Configuration menu 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 S700. It allows you and your service
provider to traffic shape all connections to an optimum rate, assigned as part
of the ATM service contract.
Configuring E3 UNI Modules
133
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