Hey all, We're setting up our monitoring system and on-boarding their network equipment. We're using SNMP v2. Our monitoring system will use SNMP Walk to gather all the information about the device. All the devices that we've on-boarded successfully and working except our Cisco Nexus 5548UP data centre switches (core switches).  The first thing we noticed is that the issue was intermittent. But after doing some deeper analysis, we found that we can consistently pinpoint exactly when it's going to work and when it's not, almost down to the second. This is the pattern I've seen: 15 seconds before the 5 minute mark, the SNMP will work for 1 minute. After that, it will stop working for around 4 minutes, then will work again for 1 minute, then stop working again for 4 minutes, then repeat and repeat. Here's the details with timestamps of the pattern: 04:04:00 - SNMP Walk is not working 04:04:45 - SNMP Walk is successful 04:05:45 - SNMP Walk stops working 04:09:45 - SNMP Walk is successful 04:10:45 - SNMP Walk stops working 04:14:45 - SNMP Walk is successful 04:15:45  - SNMP Walk stops working and so on.... I've already ensured that the SNMP host server configured using the VRF Default.  The version of NX-OS we're running is 5.2(1)N1(4) I am thinking this is a bug because I've read so much about issues with SNMP and NX-OS. However I haven't been able to find one that matches this behaviour.  Just wondering if anyone has come across this before and can offer some input. I will be opening a TAC case.  Thanks, John ... View more

Hey all, I have a question about feature licensing for Cisco ISR 1800, 2800, 3800, 2900 series. I know there are differences between all of the series. My main question which applies for all the Cisco ISR series is this: "If I want to upgrade the IOS to a newer version and upgrade from the basic feature set, do I need to get a license from Cisco? " If yes: And if so, how do I go about purchasing a license? Is a support contract needed?   Again, I need to know for each Cisco ISR series. I'd appreciate any help on this.  Thanks, John ... View more

Hey Community, Is there a "ip tcp adjust-mss" equivalent command for the NX-OS? We have a few GRE tunnels and best-practice is to configure this command on both ends but the command is not there.  Please help! Thanks, John ... View more