March 2018
Intermediate to advanced
626 pages
17h 32m
English
book
Network Analysis Using Wireshark 2 Cookbook - Second Edition
by Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss
Content preview from Network Analysis Using Wireshark 2 Cookbook - Second Edition
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Are there too many topology changes?
When you monitor STP operations, you may be concerned by many topology changes. Topology changes are normal in STP, but too many of them can have an impact on the network's performance as it may cause MAC address aging, which results in unknown unicast flooding.
A topology change happens when a new device is connected to or disconnected from the network. You can see a topology change in the following screenshot:
Figure 8.6: STP: topology change
When you see too many topology changes, the LAN switch ports that are connected to hosts that do not support STP (typically, end stations that users frequently power ...
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