Switching

Hi everyone I'm having a few problems getting the uplink port on a 3750 to stay up. The port on the router it's connected to keeps going into error disabled mode. Could someone take a look at the switch config and let me know if it looks ok? Uplink ...

hi i have a few 3850-24t-s s and i want to configure private vlan on them and one of the reasons i bought the model was because of private vlan capabilities but now i dont now how to enable it i put vtp on transparent and off mode  but i don't have p...

Hello,  I was working on Cisco 3845 and have NAT setting on a vlan. I had no problem at the beginning and found out DNS is not working today. Symptom is host in the vlan can ping and access to website but not by domain name.  1. Ping and traceroute...

Hello experts, I have some questions, and would appreciate answers. 1- What is the main difference between Base-T and Base-TX in twisted pair cables. Most importantly, how many pairs are used and which is better. 2- In full Duplex, no collision ex...

I need to identify intra-routes and redistribute them into another routing protocol. "Show Ip route" clear distinguishes between Inter-area (IA) and intra-area (O) routes. I can't find anything in a route-map to identify them. The OSPF "distance" com...

I have a pair of Cisco Nexus 9508s running as a VPC pair, I am planning on placing Cisco ISR or ASR routers at my WAN edge to terminate my MPLS connectivity, I am trying to maximize my transit connectivity between the 9Ks and the routers.  Can I conn...

I believe that there needs to be a speed-group applied to one of the six ports QSFP+ ports (49-54), but I have so far been unable to apply a speed-group setting to any of the ports. Looking for some assistance to get this QSA to come up, as right now...

Does someone know how the routing capabilities on the Sup6T relates to the routing capabilities on a ASR 100x-X router For instance I would like to compare Sup6T with AS1001-X with ethernet ports. Things like: Size of the routing table ?  # of routin...

Hello all,  I have a very strange problem. I have 2 Cisco 6500 switches with hsrp . I have created VLAN 400 with no svi . In this switches i also have 2 trunk ports that im connecting a vmware server that has a team interface this 2 trunk ports and ...

Hi folks, I really need help with finding solution to what can be done to back that switch to the working mode ? Only one repeating message at the start on the console - BOOT FAIL. I can't go into rommon, can't do anything, except that error no any ...

Hi I have tried to enable Jumbo frame support on some switches , but cannot seem to get it working . I understand on edge switches I need to enable and on core just need to configure ports ? Can advise if I am doing it right ? , is there an easier wa...