https://community.extremenetworks.com/t5/extremecloud-iq-site-engine/summit-x460-slow-snmp-v3-requests/m-p/37448#M4424 When you use snmpv3 with encryption the CPU needs to encrypt the snmp packet and this needs more CPU, hence it is slower. If you use snmpv3 without encryption it might go quicker.<BR /> <BR /> Do you have the latest bootrom, if your bootrom version (show version) is lower than 2.0.1.7 I would suggest to upgrade first the bootrom. Mon, 20 Jun 2016 16:11:00 GMT OscarK 2016-06-20T16:11:00Z https://community.extremenetworks.com/t5/extremecloud-iq-site-engine/summit-x460-slow-snmp-v3-requests/m-p/37447#M4423 I've noticed that when refreshing port list [by nagios] on x460 switch with snmp v3 it's very very slow - 17sec. This is not a case with snmpv2 when whole process is about 1-2 sec.<BR /> Do you have any advices ?<BR /> <BR /> Mon, 20 Jun 2016 16:02:00 GMT https://community.extremenetworks.com/t5/extremecloud-iq-site-engine/summit-x460-slow-snmp-v3-requests/m-p/37447#M4423 Tomasz_Lubas 2016-06-20T16:02:00Z https://community.extremenetworks.com/t5/extremecloud-iq-site-engine/summit-x460-slow-snmp-v3-requests/m-p/37448#M4424 When you use snmpv3 with encryption the CPU needs to encrypt the snmp packet and this needs more CPU, hence it is slower. If you use snmpv3 without encryption it might go quicker.<BR /> <BR /> Do you have the latest bootrom, if your bootrom version (show version) is lower than 2.0.1.7 I would suggest to upgrade first the bootrom. Mon, 20 Jun 2016 16:11:00 GMT https://community.extremenetworks.com/t5/extremecloud-iq-site-engine/summit-x460-slow-snmp-v3-requests/m-p/37448#M4424 OscarK 2016-06-20T16:11:00Z