3Com 3C780 User Guide - Page 32

Features and Functions - router

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1-6 Overview NOTE: In contrast to the PMD protocol, the PHY and MAC protocols are media-independent; that is, the same protocols function regardless of the medium being used (fiber, STP, or UTP). Station Management (SMT) Protocol The Station Management protocol is involved in network management and monitoring for all layers of the FDDI stack. Every node on an FDDI ring participates in the management of the ring. As such, all nodes exchange SMT information to control network operation. SMT specifies the following: s Status of links between nodes s Error detection and fault isolation algorithms s Monitoring of all ring and station activities s Ring maintenance s Ring initialization, control, and performance Features and Functions The LinkBuilder FDDI Workgroup Hub performs the following tasks in an FDDI network: s Connects end stations, bridges, routers, and other FDDI devices as well as additional hubs to the network s Isolates segment breaks through an attachment configuration called dual homing and dual attachment s Bypasses nodes that have been turned off or are experiencing problems s Extends the network's geographical diameter by regenerating all received signals when repeating them onto the network

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1-6
Overview
NOTE:
In contrast to the PMD protocol, the PHY and MAC protocols are
media-independent; that is, the same protocols function regardless of the
medium being used (fiber, STP, or UTP).
Station Management (SMT) Protocol
The Station Management protocol is involved in network management and
monitoring for all layers of the FDDI stack.
Every node on an FDDI ring
participates in the management of the ring.
As such, all nodes exchange SMT
information to control network operation.
SMT specifies the following:
■
Status of links between nodes
■
Error detection and fault isolation algorithms
■
Monitoring of all ring and station activities
■
Ring maintenance
■
Ring initialization, control, and performance
Features and Functions
The LinkBuilder FDDI Workgroup Hub performs the following tasks in an
FDDI network:
■
Connects end stations, bridges, routers, and other FDDI devices as well as
additional hubs to the network
■
Isolates segment breaks through an attachment configuration called dual
homing and dual attachment
■
Bypasses nodes that have been turned off or are experiencing problems
■
Extends the network’s geographical diameter by regenerating all received
signals when repeating them onto the network