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Configuring SVC Parameters
Configuring SVC Port Prefixes
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000 1/19/0517-53
3. See Table 17-12 to configure additional port prefix options.
4. Choose OK to save the port prefix and close the Add SVC Port Prefixes dialog 
box. 
Defining Port Prefix Options
When you add a port prefix, the General tab in the Add SVC Port Prefix dialog box 
contains fields that allow you to enable or disable options, as shown in Figure 17-27.
1. Select the General tab in the Add SVC Port Prefix dialog box.
Figure 17-27. Add SVC Port Prefix: General Tab Fields
2. Complete the fields in the General tab as described in Table 17-12.
Table 17-12. Add SVC Port Prefix: General Tab Fields
Field Action/Description
Source Address Validation Select this check box to validate the calling party address 
against the port prefix associated with the UNI/NNI port 
that received the call setup message. If you clear this 
check box, this port prefix is not used to validate calling 
party addresses.
Route Determination If you select this check box, the OSPF protocol uses this 
port prefix for route determination. If you clear this check 
box, OSPF registration is not used. Enable this option to 
use PVC/permanent virtual path (PVP) termination (see 
page 18-3).
Address Registration If you select this check box, port prefixes are used for 
ILMI address registration if ILMI is enabled on this 
logical port. This option cannot be enabled for AESA port 
prefixes that are not 13 octets long.
CUG Termination Select this check box to use this prefix as part of a CUG. 
Incoming and outgoing calls with a calling or called party 
address that matches this prefix are subject to CUG 
security checks. For more information on CUGs, see 
Chapter 19, “CUGs.”