Blade ICE G8000 manual Port Type and Link Type, RSTP configuration guidelines, Edge Port

RackSwitch G8000 Application Guide

Port Type and Link Type

Spanning Tree configuration includes the following parameters to support RSTP and MSTP: edge port and link type.

Edge Port

A port that does not connect to a bridge is called an edge port. Edge ports can start forwarding as soon as the link is up.

Edge ports do not take part in Spanning Tree, and should not receive BPDUs. A port with Edge enabled is intended to be connected directly to a host. If a port with edge enabled does receive a BPDU, it immediately begins working as a normal port, and participates in Spanning Tree.

Link Type

The link type determines how the port behaves in regard to Rapid Spanning Tree. The link type corresponds to the duplex mode of the port. A full-duplex link is point-to-point (p2p), while a half-duplex link should be configured as shared. If you select auto as the link type, the port dynamically configures the link type.

RSTP configuration guidelines

This section provides important information about configuring Rapid Spanning Tree Groups:

„When RSTP is turned on, STP parameters apply only to STP Group 1.

„When RSTP is turned on, STG 2-128 are turned off.

„When RSTP is turned on, all VLANs are moved to Spanning Tree Group 1.

BMD00041, November 2008 Chapter 5: Spanning Tree „ 81