Page 1634 of 1814 Virtual Network Services Virtual Directory Number Expansion553-2901-301 Standard 9.00 January 2002For example, a customer may define the following VDNs (In this example,the customer is defining a total of 164 VDNs.)7200-72997320-732573557400-74557676A customer may remove a block of contiguous VDNs, as long as there is noVNS call using a VDN in the block. To remove a block of contiguous VDNs,the block has to be first disabled in Overlay 79 (by entering DIS against theREQ prompt), to prevent new VNS calls from using any of the VDNs in theblock. Once the block has been disabled, the system administrator has to waituntil all the VNS calls, using any of the VDNs in the block, are cleared.After disabling the block, the system administrator can determine the numberof VDNs used by VNS calls by printing VNS information (by using the PRTcommand in response to REQ in Overlay 79). Once all of the VDNs are free,the block may be removed by using the OUT command.Operating parametersThere are no operating parameters specified for this feature.Feature interactionsThere are no feature interactions specified for this feature.Feature packagingThe VNS VDN expansion feature requires the following packages:• Virtual Network Services (VNS) package 183;The following software packages are also required:• Network Alternate Route Selection (NARS) package 58, dependent on:— Basic Routing (BRTE) package 14, and— Network Class of Service (NCOS) package 32;• Integrated Services Digital Network (ISDN) package 145;• ISDN Signaling Link (ISL) package 147;
