Cabletron Systems STS16-20R User Manual
10
SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide
Introduction
Features and Specifications
This section lists important switch features as well as technical specifications.
Features
Performance and Advanced Features
•
Three switching modes:
— Low latency cut through
— Store and corward
— Auto (Adaptive cut-through)
•
Enhanced bridging modes:
— Transparent bridging
— Source route switching
— Source route bridging (SRB)
— Source route transparent bridging (SRT)
•
Support for duplicate MAC address schemes
•
Automatic port sensing of operating mode and media speed
•
Multiple Token Ring port operation modes:
— Half-duplex concentrator and station
— Full-duplex concentrator and station (Dedicated Token Ring)
— RI/RO-like connection (SmartStack STS16-20R only)
•
Spanning tree protocol support on SmartStack STS16-20D for the designated
network ports 17–20 and on SmartStack STS16-20R for all the ports 1–20:
network ports 17–20 and on SmartStack STS16-20R for all the ports 1–20:
— IEEE 802.1D
— IBM Spanning Tree Protocol
On SmartStack STS16-20D the workstation ports 1–16 will always be in
forwarding state. They are not affected by the spanning tree protocol.
forwarding state. They are not affected by the spanning tree protocol.
•
CrossLink high-speed inter-switch connection
— On SmartStack STS16-20D up to 128 Mbps using the network ports 17–
20. On SmartStack STS16-20D the workstation ports 1–16 do not support
CrossLinks.
CrossLinks.