This blog was originally started to better help me understand the technologies in the CCIE R&S blueprint; after completing the R&S track I have decided to transition the blog into a technology blog.
CCIE #29033
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What are the spanning-tree phases?
2 comments:
There are five main phases for spanning-tree.
1. Disabled
2. Listening
3. Learning
4. Forwarding
5. Blocking
Blocking — interface does not forward frames.
Listening — After blocking, but does not forward frames.
Learning — After Listening, Learns mac addresses but does not forward frames.
Forwarding — After Learning, forwards frames.
•Disabled— not participating in spanning-tree, ports is shutdown or link is down.
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