Switching

Hello,After upgrading all 2960 switches and 3560 (inter-vlan routing) to latest software version I more problems than I was hopping to fix. It appears that after upgrading configuration was changed on the switches. I manged to clean up most of it. On...

Hello Guys, What are the Cisco Switch Series that supports G.8032(ERPS) . My findings are ME 3600 and 3800. Any idea about 3750 ?

I am experiencing some really odd behavior when I add another VLAN to the switch, and I am hoping someone can tell me if I am doing anything wrong or what may cause this problem. Here's the topology on how the router and switches connected and everyt...

Hi, We are trying to setup GLBP and my standby router is "unknown." Below is our config, any ideas? The virtual IP is indeed working, we are sending traffic to it now.  R1 Device: 2901IOS: c2900-universalk9-mz.SPA.151-4.M3.bin!R2 Device: 2911IOS: fla...

Here's my network setup:2x Nexus 7710 at the spine with HSRP (routing at the spine layer)2x Nexus 6001 running VPC+ (leaf layer 2 only)Fabricpath between the 6K and 7KTraffic to a vPC connected host on the N6K is load-balanced 50/50 between both Nexu...

Hello,Is it possilbe to ping a network address to find out if that network address exist on the network or it has been advertise from any router or switch.  Also, what is the easiest way to determine what subnets have not been created and advertise o...

I'm not quite sure how to ask my question so I hope I don't ramble too much.  I am building a proof-of-concept design in our rack to simulate dual WAN connections.  In my attached drawing I am focusing on the LAN piece of the network.  The WAN portio...

I am using Cisco Nexus 7K as NTP server but not sure which protocol version is being used. Is there any way we can find the NTP protocol version in Nexus 7K? As we can see in other routers with below command we can get the information, but this comma...

Hi to all,I'm trying to open some ports for a new video recorder and is not working.....I have tried with the command "ip nat source inside static", with a "router-map", associating this translation to an access-list, and always is the same, doesn't ...

Hello, We have a 3750 stack with the default route connected to the MPLS of the customer. We have to move a connexion to a partner from the MPLS to a new VPN. I just add a static route of the IP address of the partner to the firewall VPN. then the VP...

Hello,I have read the REP white paper, but i have still no answer if the following topologies are supported: * Multiple REP segments inside a single ring, merged together with RapidSTP:     SW1 --- REP Seg 1 -- SW2 -- REP Seg 1 -- SW3 --- Rapid STP -...