Cisco BPX 8650, Installation And Configuration Manual

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Glossary
GL-14
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
logical interface
Each physical interface and every virtual trunk endpoint on a platform is represented to the VSI
controllers as a different logical interface with partitions, and other VSI configuration. Logical
Interface numbers are 32-bit with a format which is, in general, known only to the platform.
logical port
A frame relay circuit consisting of either 1, 6, 24 (T1,) or 31 (E1) contiguous DSO's on a T1 or E1
physical port.
LSR
label switching router.
An MPLS (Multiprotocol Label Switching) router.
M
major alarm
A local or remote failure that is affecting operation of the network.
maximum burst size
See MBS.
MBS
maximum burst size.
Maximum number of cells which may burst at the PCR but still be compliant.
MCR
minimum cell rate.
The minimum cell rate that is supported by an ATM connection for an ABR connection.
minimum cell rate
See MCR.
minimum
information rate
See MIR.
minor alarm
A local or remote failure that is not affecting operation of the network, but nonetheless should be
investigated.
MIR
minimum information rate.
MIR is supported by a frame relay connection.
N
n+1 redundancy
A redundancy method in which a group of cards share the same standby redundant card.
network-to-network
interface
See NNI.
network processor
module
See NPM.
network trunk
module
See NTM.
NNI
network-to-network interface.
The protocol at a frame relay port that serves as a bidirectional interface between a local Cisco WAN
switching network and a separate and independent “other” network.