Configuration identification and mapping in a frame relay-ATM service interworking-based wide area network

A computer program product for identifying a connection between a destination local area network (LAN) and a local LAN where said LANs are coupled by a Frame Relay (FR)-ATM Service Interworking (SIW)-based wide area network (WAN), wherein each of said LANs includes a router, and wherein said WAN includes an FR switch and an ATM switch, said computer program product comprising:

• a computer usable medium having computer readable program code means embodied in said medium, said computer readable program code means comprising:
• a computer readable first program code means for causing a computer to identify one or more FR or ATM interfaces on each router;
• a computer readable second program code means for causing a computer to retrieve and store an IP address, a subnet mask, a city, a state, a data link connection identifier value for each FR interface, and a virtual circuit identifier value for each ATM interface, thereby identifying a list of entries;
• a computer readable third program code means for causing a computer to use the IP address in conjunction with the subnet mask stored on both the FR and ATM interfaces in the list to derive a destination IP address, thereby identifying a pair of network IP addresses;
• a computer readable fourth program code means for causing a computer to identify a data link connection identifier value and a virtual circuit identifier value associated with the pair of network IP addresses;
• a computer readable fifth program code means for causing a computer to retrieve and prepare WAN configuration data by manipulating the characters and length of the city and state names so as to permit a LAN-to-WAN correlation;
• a computer readable sixth program code means for causing a computer to associate the city, state, data link connection identifier value of the FR interface, and virtual circuit identifier value of the ATM interface on the LANs with the city, state, data link connection identifier value, and virtual circuit identifier values on the WAN;
• and
• a computer readable seventh program code means for causing a computer to retrieve and store the associated configuration information and components of the WAN along with the entries of the list.

An apparatus for identifying a connection between a destination local area network (LAN) and a local LAN where said LANs are coupled by a Frame Relay (FR)-ATM Service Interworking (SIW) based wide area network (WAN), wherein each of said LANs includes a router, and wherein said WAN includes an FR switch and an ATM switch, the apparatus comprising:

• means for identifying one or more FR or ATM interfaces on each router;
• means for retrieving and storing an IP address, a subnet mask, a city, a state, a data link connection identifier value for each FR interface, and a virtual circuit identifier value for each ATM interface, thereby identifying a list of entries;
• means for using the IP address in conjunction with the subnet mask stored on both the FR and ATM interface in the list to derive a destination IP address, thereby identifying a pair of network IP addresses;
• means for identifying a data link connection identifier value and a virtual circuit identifier value associated with the pair of network IP addresses;
• means for retrieving and preparing WAN configuration data by manipulating the characters and length of the city and state names so as to permit a LAN-to-WAN correlation;
• means for associating the city, state, data link connection identifier value on the FR interface, and virtual circuit identifier values of the ATM interfaces on the LANs with the city, state, data link connection identifier value, and virtual circuit identifier values on the WAN;
• and
• means for retrieving and storing the associated configuration information and components of the WAN along with the entries of the list.