Lucent Technologies Release 8.2 manual Interserver routing table Glossary, Base address, IP user

interserver routing table Glossary

interserver routing table

A database that keeps track of the interserver routing tables on a multiserver MMCX network. When a server sets up a Point-to-Point Protocol connection with a remote server, the local server looks up the dialed-digit sequences in the interserver routing table. (Calls that involve only one MMCX server are routed using the dial-plan table.)

I/O base address

The place in memory where a given computer peripheral places and picks up messages that travel over a computer’s system bus.

IP

Internet Protocol.

IP (Internet Protocol) address

A 32-bit number that uniquely identifies endpoints on the Internet, commonly specified in the form n1.n2.n3.n4 where each nn is a decimal number between 0 and 255. Part of the IP address represents the address of a local network’s gateway to the Internet and part represents the host-machine address within that local network. The available bits are apportioned to the network address or local address using a system of classes. The Class A addresses used by the largest organizations on the Internet reserve the first 8 bits for the network portion of the address and remaining 24 for the host machine. Class B addresses, the most common class, assign 16 bits to the network and 16 to the host machine. The Class C addresses used by small networks reserve the first 24 bits for the network and the remaining 8 bits for the host.

IP user

An H.323 endpoint on an MMCX network. Such users do not have log ins, so the MMCX server identifies them using an extension number and an IP address.

ISDN

Integrated Services Digital Network, a digital, voice and data service. You get ISDN in either of two forms. Primary Rate Interface (PRI) service has a capacity of 1.544 mbps, divided into 23 or 29 B-channels (23 on a North American T-1 connection, 29 on a European E-1) and 1 D-channel, each with a capacity of 64 kbps. Basic Rate Interface (BRI) service has a capacity of

144kbps, divided into 2 B-channels at 64 kbps each and 1 D-channel at 16 kbps.

ISDN trunk

A trunk administered for use with ISDN-PRI. Also called ISDN facility.

Administration for Network Connectivity
555-233-504 — Issue 1 — April 2000	CID: 77730	477