Hi Experts: Will this topology cause performance issue??We find out tcp out of order retransmission for some client(problemed client change ip address can be fine)For Nexus 7K and Nexus 5K didn't run double-sited vpc will be the reason?? why?? thanks...

Our Switch (3750 & nexus 5000 & nexus 7000) be scan with udp 123 and 161 port open on management interface. I know it's open for NTP and SNMP. But for our Security policy it's not allowed. Any body know how to close it ?? Not only acl block but also ...

My 3750 on Management Server show as below         .1.3.6.1.4.1.9.9.13.1.5.1.3.1034      ==>  1  (NORMAL)        .1.3.6.1.4.1.9.9.13.1.5.1.3.1050      ==>  6  (NOTFUNCTIONING)        .1.3.6.1.4.1.9.9.13.1.5.1.3.2034      ==>  1  (NORMAL)        .1.3....

according your experience, A AP can handle how many clients?In my environment, client will be disconnect when client number reach 20. Is it normal?