Switching

Hello and sorry for my english,I have all switch connect to Cisco 3850. I have also physicals servers and Wmware.When i ping from servers, physical or not the gateway who is on C3850, the latency is very high, it can be 1ms and next 50ms, next 100ms,...

I have two 9500's in virtual stackwise setup. Stackwise links are twe1/0/27 and 28. When I plug the 40Gb cable into 1/0/27 on switch 1, I get the following errors from console: Jun 20 16:18:58.480: %NIF_MGR-6-PORT_CONNECTION_STATUS_CHANGE: Chassis 1 ...

Hello,I have N5K-C5548P and configured keepalive link between 2 SWs ,, as L3 then I got an issue,, after troubleshooting and search, the solution was either install LAN_BASE_SERVICES_PKG license or L2 Interface mit int vlan ,,, I did the second optio...

Hi everyone. i have 6 VLANs and VLAN 15 i used for management  i faced issue with telnet and ssh from switch to switch telnet is working but when i try telnet from Window PC ( vlan 16 and other VLANs ) telnet session open with blank screen,  i opened...

Can anyone advise the best way to upgrade a quad supervisor 9600 chassis?I've used ISSU sucessfully once following cisco documentation, but that was as soon as the chassis was put into production as a test and it worked perfectly, the 2nd time 18 mon...

I have 3 3750 switch working in stacki have connected one uplink which came from Unifi switchmy uplink port gone err-disabled after every 10 to 15 hours and reason show loopback.can you please help to resolve this issue.

Hi we just RMA'd a nexus 9k, the old device was converted to smart licensing during a firmware upgrade, the new device we put directly on the new firmware (10.4) so our usual process of conversion doesn't work on this smart license only firmware, wha...

I am trying to recover the admin password using a console cable.   I connect to my SG350-10MP and when I restart, I only get garbage characters across the screen during the boot process.  Is there some special setting needed in Putty to translate?

Hi,I am moving config from old switch to new switches which are runing IOSXE.I tried copy the config below from old switch to new switch but it did not work. Could you help to explain?mls qosmls qos srr-queue output dscp-map queue 1 threshold 3 56mls...

Hi Experts,I want to understand regarding RSTP convergence times. Need some reference form standard/ benchmark to know estimated convergence times. In all posts/websites i was seeing some random values only.. please share any reference to understand....

Good morning,I am a computer scientist, I changed several months ago all the computer equipment of my company. That’s 20 Catalyst C1000 switches.For two days now I see that my heart of the network 3 Switch Catalyst C1000 in H-stack falls at 8H interv...

Hello everyone,I have a Catalyst 2960 series PoE-48 switch that was exposed to water during a rainstorm. The switch was located in a cross-connect cabinet under an open window, and several security cameras were connected to it. Since the incident, th...