Specifications

Glossary
GL-3
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
IISP
Interim Inter-switch Protocol.
ILMI
Integrated Local Management Interface.
IOS
Cisco Internet Operating System.
IP
Internet Protocol.
L
LCN
Each interface card in a switch has a certain number of Logical Connection Numbers. A Logical
Connection Number is used for each cross connect leg through the card in question. “LCN” is often
roughly synonymous with “cross connect leg”. In VSI terminology, and LCN is an example of an Other
End Reference.
LER
Label Edge Router.
LGN
Logical Group Node.
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 Link
Either a physical link or a VPC PVC across another ATM network. Logical links are referred to as
horizontal links (if connecting logical nodes within a pair) or outside links (if connecting peer groups).
LSC
Label Switch Controller.
M
Managed device
A device containing a network management agent implementation.
MBS
Maximum Burst Size.
MIB
Management Information Base, a structured set of data variables, called objects, in which each variable
represents some resource to be managed.
MIB-II
Internet-standard MIB, RFC 1213.
MP
Maintenance Port. The maintenance port is a serial port on a PXM45 UI-S3 back card. This is the port
used for dial-up CLI management.
MPG
Multiple Peer Group.
MPLS
Multiple Protocol Label Switching.