Panasonic 15000 manual Connection admission control CAC, Connection bandwidth control CBC

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List of terms

connection admission control (CAC)

A preventative ATM traffic management strategy through which Nortel Multiservice Switch nodes evaluate a connection request based on the traffic characteristics of both established connections and the requested connection. The request is accepted if the new connection does not jeopardize the QOS of established connections.

connection bandwidth control (CBC)

Connection bandwidth control guides the response of ATM connections to changes in bandwidth available over an ATM link.

connection recovery

A process of finding an alternate route for a failed connection that would have been cleared back to the end-user. In connection recovery, the incumbent connection segment is released before the establishment of an alternate connection segment. Connection recovery is also known as hard rerouting and break-before-make rerouting.

connection segment

Aportion of an end-to-end connection or the entire end-to-end connection, spanning a series of intermediate nodes across a PNNI network.

connection scope

The PNNI routing level above which the network cannot route calls.

connection scope selection information element (CSS-IE)

A signaled information element that is used in ATM anycast call requests. CSS-IE in the call setup message permits the calling endstation to constrain

apoint-to-point connection request using the ATM anycast capability to group members within a specified level of routing hierarchy.

connection trace

A control plane mechanism that determines the physical nodes and physical links traversed by existing connections that have already been established.

connectionless routing (CNLS)

Apoint-to-point routing service where a message’s path through the network is not specified during the call establishment phase. Instead, the path for each data unit (a frame or cell) of a message is calculated independently and dynamically. Each path is based on the destination address of the frame, current network topology, and available bandwidth. Connectionless routing features a high degree of robustness and reliability, since data can be easily steered away from failed or heavily congested facilities.

Nortel Multiservice Switch 7400/15000/20000

Terminology

NN10600-005 7.2S1 Standard

PCR7.2 and up March 2006

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