Switching

I had a 6509-E reboot but did not load the startup config.  The config reg is set correctly.  The startup config was present in a show start.  I could not copy the start over to the run.  Could someone give me a reason why this would happen

Hi all, We have the a proposed design of 9x routers in a ring topology.  These routers would be in 9x different data centers spanning a geographical area the size of a large USA state. The design is the same as the design at this link, but instead ...

Is  VSS - vPC-switches  connectivity with single L3-MEC supported? Or I have to do  2 MECs to VSS from vPVC-switches (one from each vPC switch)?

Should the following setup work? I have a 6880 Pair in VSS, with 2 10Gb links going from each of the 6880 boxes to each of my NX5k Cores. I was hoping to be able to put all 4 links in 1 port channel, then VPC them on the NX side. Would STP still try...

Hi Guys, I've come across a strange issue with x2 of my Cisco 887 VA's. I upgraded the IOS this morning to c880data-universalk9-mz.153-3.M8.bin when I reloaded the devices, my routers believes the images to be invalid, error message below. I thought ...

Strange problem on our 3750 stacks - when changing the config on many interfaces, the cpu utilization increases, to the point that sometimes my ssh connection to the switch is dropped, pings fail, etc.  E.g. if we do this command:int range Fa1/0/1-48...

Hello, I have a network where all of the vlan ip address are on the core (6509) switch and VTP replicates the vlans to other switches connected to the core. What I would like to do is move some vlans onto a lab (4506) switch and break VTP into two do...

Suppose I have two nexus switches in downlink which is configured as vPC to connect a server and server is also using nic teaming. Both nexus are also connected to both uplink switches for redundancy. My question is as far as I know for vPC both nexu...

Dear All, We have a 3850 and a bunch of 2960s in our shop. Power here in Africa is terrible. Power is so bad it killed the battery on our big APC UPS. While waiting for the UPS battery to be replaced, our server room has been subject to many transie...

Hi, While upgrading the IOS of a Cisco WS-C6506-E from version 122-33.SXH4 to 122-33.SXJ10. I encountered the following issue: Ports 2/8 and 2/42 are configured in a port-channel which is connected to a cisco WS-CBS3012-IBM-I. The configuration of...

Hi Guys,  i have requirement to be accomplished. i have 2 switches connected and port channeled ,they are L3. i have SVI created on both of them with a subnet 10.1.1.0/24 including hsrp configuration. Switch1: interface Vlan1ip address 10.1.1.3 255....