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Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide User Manual

Page 296

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FIGURE 59 Beginning of topology change notice

Switch 2 then starts the TCN timer on the Designated ports and sends RST BPDUs that contain the
TCN as follows (

Figure 60

):

• Port5/Switch 2 sends the TCN to Port2/Switch 5
• Port4/Switch 2 sends the TCN to Port4/Switch 6
• Port2/Switch 2 sends the TCN to Port2/Switch 1

Spanning Tree Protocol

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FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide

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