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List of terms
requested shaping rate (RSR)
One of a set of ATM traffic characterization values used to define traffic characteristics through the traffic descriptor types.
RSR defines the traffic shaping rate that is requested for a connection. This parameter is optional. If defined, the requested rate is used as a basis for determining the actual shaping rate; if not defined, traffic shaping is determined by the PCR and SCR rates defined for the connection through the traffic descriptor type.
RSR is Nortel Multiservice Switch
The five values used in the traffic descriptor parameters are peak cell rate (PCR), sustainable cell rate (SCR), maximum burst size (MBS), cell delay variation tolerance (CDVT), and requested shaping rate (RSR).
rerouting
rerouting node
The node that is responsible for establishing an alternate connection segment (rerouting segment) to a predetermined rendezvous node.
rerouting segment
A connection segment that is used to replace an incumbent connection segment.
reset
An action taken on an entity (either a shelf or a processor card) that causes all software on that entity to first reload and then restart. A reset can be initiated either by an operator or by the system.
resource availability information group
The resource availability information group contains information that the PNNI network nodes use to assign values of topology state parameters against nodes, links, and reachable addresses.
resource management (RM) cell
In ATM networking over ABR connections, a cell that carries congestion information. ABR sources (see source/destination (page 124)) send RM cells into the network. ABR destinations then turn these cell around. During the return trip, ABR nodes deposit congestion information in the RM cells. The source uses the congestion information to influence bandwidth allocation to ABR VCs and call admission control.
Nortel Multiservice Switch 7400/15000/20000
Terminology
PCR7.2 and up March 2006
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