3Com 9000 manual Software LED, Application LMA

446GLOSSARY

daughter card Can be either OC-3c, OC-3c Single Mode Long Reach, OC-12c, Single Mode or Multi-Mode or 155 Mbps-over-UTP5. These cards are attached to the ATM Interface Carrier Module to make the Interface Module complete.

Early Packet Discard A procedure for discarding cells related to one user frame to minimize (EPD) the impact of congestion.

EFCI Explicit Forward Congestion Indication. A 1-bit field in the PTI that contains information about whether congestion at an intermediate node has been experienced.

E-IISPExtended Interim Interswitch Protocol. A signaling protocol that uses network-to-network (NNI-based) signaling for communication.

Enterprise Engine The management engine for the CoreBuilder 9000 ATM Enterprise (EME) Switch.

Enterprise Network A network structure that is similar to a campus network.

Flash/Operational An LED that indicates in which software unit the error occurred.

Software LED

Framer An ATM Interface Module component that processes the SONET/SDH frames, extracts the ATM cells from the incoming serial data, verifies cell header validity and transfers cells to the ATM Layer Processor.

IISP (Interim A signaling protocol that uses user-to-network (UNI)-based signaling for Interswitch Protocol) switch-to-switch communication.

Local Management The graphic interface used to manage the Enterprise Switch locally.

Application (LMA)

loopback test A test used to diagnose faulty cables as well as faults in the framer or other components of a daughter card.

LAN Local Area Network. A data communications network spanning a limited geographical area, such as a single building or campus. It provides communication between computers and peripherals. LANs are distinguished by their small geographical size, high data rate, and low error rate.

loopback test The loopback test is used to diagnose faulty cables as well as faults in

the framer or other components of a daughter card.