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Description
LEFT CLUSTER RIGHT CLUSTER
host1 -- switchL1 ---+ +--- switchR1 -- host3
| \ | | / |
host2 -- switchL2 - switchL3 --bridge1-- switchR3 - switchR2 -- host4
| / | | \ |
switchL4 ---+ +--- switchR4
| |
+---- bridge2 -------+
After STP convergence, bridge1 and bridge2 is disabled, cutting the network into two parts. The left cluster reconverges,
but the right cluster creates a BPDU storm:
~308,000 events in ~1.2 seconds of sim time
Events occur at sub-microsecond intervals (e.g., t=101.002838 to 101.002850 — just 12μs for dozens of BPDU exchanges)
Analysis:
To reproduce:
topic/stp-bpdu-storm branch
tutorials/stp, step9
BPDU storm at ~101s
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