we have a new cisco 6513 with only 10/100 base t connections. We are going to use 3 3Com switches with 100 base fiber coming into each and then one 100 base T port out of each of the 3 Com switches into 3 separate ports on the 6513 and then populate the rest of the ports with end users. Do I need to enable spanning tree on those 3 ports only or what do I need to do to ensure no loops.
You should have spanning tree turned on in most every environment. It is on be default on the 6513. Many turn it off on a lot of gear because they do not understand it. Spanning tree should be enabled on all ports and proactively configured. But don't do it blindly. Sometimes that is worse. Cisco LAN switching by Cisco Press is a great reference.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
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