Switching

I am setting up a ASA HA active passive implimentation with 4 Nexus 5596 on 2 physical locations for a customer.of the 4 Nexuses, only 1 have SVI's for all VLAN's and is the default gateway for all servers and clients, and no HSRP is configured. (don...

Any Idea What is this error message all about.   M2-CCTV-DS(config)#int port-channel 10int port-channel 10                 ^% Invalid input detected at '^' marker. M2-CCTV-DS(config)#May 23 13:06:13: EthChnl assert failure: ag == NULL: ../switch/pagp...

Platform is a WS-C2960-48TC-L. Began by troubleshooting CRC errors on our COO's drop. Interface configuration is a Fa port that was forced 100 Full. He was still getting errors after I replaced both the drop and patch cord. To rule out premise wiring...

Hey guys, so i have HSRP configured on two routers and its working just fine, the thing is the two routers are connected to a switch and i have two pcs connected (Pcs running PBX) to the switch. I want to configure NAT portforwarding so that when the...

We started using Cisco 3850 switches. We are seeing unknown protocol drops on 10gb and 1gb uplinks. We have 3750x switches that have the same config. The 3750s are not showing these drops. What would cause these unknown protocol drops? It does not ap...

Hello, I have got new 3750 e-series which has universal image installed on it. I need to put this switch in stackwise with non-e-series 3750. The problem is that non-e-series are running IP BASE IOS and I wanted to put the same IOS on 3750 e-series. ...

Greetings all,I'm not so skilled in catos configuration so it would be really great if anybody can write his/her opinion about my configuration as I dont have any oportunity to test it before implementation.My task is to upgrade existing port channel...

 I have some problems about replace linecard on Coreswitch 4507I use WS-X4648-RJ45V+E  beforeand i replace with WS-X4648-RJ45-E.Configuration on this linecard is gone. What happen about this problem.?If anyone ever found this problem.  Please share y...

Hi all Within our network we are seeing unicast flooding for 3 of our devices. based on the topology attached the SNMP server sends a get request to the UPS which has to be routed to VLAN 20. when I run wireshark on my pc in VLAN 20 I am seeing all o...

Hello,I need to upgrade the IOS of my switch Cisco 2950. It's a WS-C2950T-48-SI with the IOS:“c2950-i6q412-mz.121-22.EA8a.bin” and ineed to upgrade at “c2950-i6q4l2-tar.121-22.EA14.tar” but there wrote: “Min Memory: DRAM 16 MB Flash 8 MB”.When I do “...

Could someone explain to me what a nexus switch can do that a 3650 switch cannot? Ex. Features (software, hardware)

Hello,I can ping the dns server ip address from 3750 switch but I cannot ping anything like google.com or yahoo.com, etc. I have ip domain-look up enable and the ip name server commands are configured correctly.  Does not seem no access list is block...