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I am seeing a frequent 'spikes' in dns queries/requests during peak business hours and I noticed DNA Center Assurance Client 360 under connectivity has a graph that tracks DNS Requests and Responses. Is there a way I can filter, search and or generat...
I can't find where these mac addresses are coming from. Each time I search for them on the specified port/switch, each end of the link points back to one another. Any tips to finding these? Aug 25 21:35:58 MDT: %SW_MATM-4-MACFLAP_NOTIF: Host 0052....
I am getting no link between a C9500-48Y4C and C3650 (via trunk) when I attempt to use two different optics at either end. Can anyone provide insight on anything that I am missing, because at this point I imagine there may be programming issues on th...
No wireless SSID, and we are using rapid-pvst - I do not see any switchports on vlan 1, 399 or 499 and no open monitor sessions, all cisco switches. No inconsistent ports so far.
I’ll double check infoblox and see. I’ve checked for these MAC addresses in the arp and Mac tables across the whole LAN and they always appear on the trunk interfaces. The actual trunk interfaces we have in use. I don’t see evidence of a hub. Solar w...
399 and 499 are native vlans - not sure why we have 2, at one point this was 2 buildings that become 1. Setting the same native vlan across the LAN is probably the fix. 2xC9606 distribution switches running as an HSRPv2 pair, Dist-1 is Active and R...
Replacing the optics resolved the issue. I did notice you will need to manually set the speed for either 10G or 25G depending on what kinda of link your doing.