Switch User's Manual

60 P
prefix
A group of contiguous bits, from 0 to 32 bits in
length, that defines a set of addresses.
primary rate interface (PRI)
An integrated service digital network (ISDN)
interface standard designed in North America as
having 23 circuit-switched B channels and one D
channel, which operate at 64 kbit/s.
private virtual circuit (PVC)
An ATM channel connection or path connection
configured at the network management interface.
Provider Edge (PE) device
A device owned and operated by the service
provider. It maintains knowledge of VPN
information and enforces service level
agreements. The PE hosts the UNIs that supply
VPN services to customers and is logically
adjacent to the CE.
Protocol Data Units (PDUs)
A unit of data that is specified in a protocol of a
given layer and that consists of protocol-control
information of the given layer and possibly user
data of that layer.
programmable I/O module (PIM)
A Field Programmable Gate Array (FPGA)
device on the R module.
Protocol Independent Multicast multicast border router
(PIM MBR)
Connects PIM domains to other multicast routing
domains and to the Internet.
Protocol Independent Multicast, Source Specific
(PIM-SSM)
Uses only shortest-path trees to provide
multicast services based on subscription to a
particular (source, group) channel.
Nortel Ethernet Routing Switch 8600
Terminology
NN46205-102 01.01 Standard
30 May 2008
Copyright © 2008 Nortel Networks
.