Convergence In A Simple Topology - Dell PowerConnect B-RX Configuration Manual

Bigiron rx series supporting multi-service ironware v02.7.03

Hide thumbs Also See for PowerConnect B-RX:

Table of Contents

Recall that Switch 200 sent the agreed flag to Port4/Switch 60 and not to Port1/Switch 100 (the

port that connects Switch 100 to Switch 200). Therefore, Port1/Switch 100 does not go into

forwarding state instantly. It waits until two instances of the forward delay timer expires on the port

before it goes into forwarding state.

At this point the handshake between the Switch 60 and Switch 200 is complete.

The remaining bridges (Switch 300 and Switch 400) may have to go through the reroot handshake

if a new Root port needs to be assigned.

Convergence in a simple topology

The examples in this section illustrate how RSTP convergence occurs in a simple Layer 2 topology

at start-up.

The remaining examples assume that the appropriate handshake mechanisms occur as port roles

and states change.

BigIron RX Series Configuration Guide

53-1001986-01

Handshake completed after election of new root port

Convergence in a simple topology

Alternate port

Designated port

Table of Contents

Bigiron rx series