Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 448)

418 Multi-Service IronWare Switching Configuration Guide
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State machines
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• Proposing and Proposed – The Designated port on the new root bridge (Port4/Switch 60)
sends an RST BPDU that contains a proposing signal to Port4/Switch 200 to inform the port
that it is ready to put itself in a forwarding state (
Figure 80 ). RSTP algorithm determines that
the RST BPDU that Port4/Switch 200 received is superior to what it can generate, so
Port4/Switch 200 assumes a Root port role.
FIGURE 80 New root bridge sending a proposal flag