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List of terms

Internet control message protocol (ICMP)

A collection of error conditions and control messages exchanged by IP modules in both hosts and gateways. Examples consist of echo requests and replies and notification of discarded datagrams.

Internet group management protocol (IGMP)

A protocol that is used between routers and locally attached hosts to communicate multicast group membership information.

Internet protocol (IP)

A protocol suite that operates within the Internet as defined by the requests for comment (RFC). This term can also refer to the network-layer (level 3) of this protocol stack-the layer concerned with routing datagrams from network to network.

Internet protocol interface over frame relay (IPIFR)

Allows a Nortel Multiservice Data Manager workstation to communicate with Nortel Multiservice Switch nodes over frame relay. Once the connection between a workstation and a node has been established, Multiservice Data Manager can connect to the node over frame relay and exchange IP datagrams.

Internet protocol interface over virtual circuit (IPIVC)

In Nortel Multiservice Switch device’s initial releases, FTP, Telnet, Ssh, and FMIP protocols are implemented over TCP/IP protocols using the IPIVC system. This system allows Nortel Multiservice Data Manager workstations to communicate with Multiservice Switch nodes by way of X.25 on DPN-100. Once the connection between a workstation and a DPN-100 module has been established, Multiservice Data Manager can connect to the node over the X.25 virtual circuit and exchange IP datagrams. The ftp connections can be either secure or non-secure as described in the Multiservice Data Manager Security User Guide.

inter-region Multiservice Switch trunk

A Nortel Multiservice Switch trunk that is a link between two border nodes in different topology regions.

interrupting mode

See frame-cell trunk (page 54).

intra-domain link

A PNNI link that connects two nodes that are in the same local rerouting domain.

Nortel Multiservice Switch 7400/15000/20000

Terminology

NN10600-005 7.2S1 Standard

PCR7.2 and up March 2006

Copyright © 2006, Nortel

Nortel Confidential

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Panasonic 15000 Internet control message protocol Icmp, Internet group management protocol Igmp, Internet protocol IP