Hello, I have in my site a L2 connection to the POP for the internet access, we will add a second L2 link to avoid the outage in case on down of the first L2 link. My questions are: 1) is better to use the second L2 link as backup ? 2) is better t...
Forum Posts
As the title says, a switch is receiving pause frames, but the ASA is still getting overrun errors. We have played with the settings for flowcontrol, but nothing seems to stop these errors. I have performed troubleshooting as per this document: h...
Hello all (first time post), I need to rearrange the FlexStack-Plus cables on the back of my 6 member stack of Catalyst 2960-x switches. I am rearranging to spread the members across our power failure domains so the stack will not split if we lose 1-...
Hi, I am trying to enable the monitoring on a cisco 2950-24 switch but when run the command monitor session 1 source ......get the message invalid in put. is this means I cannot enable the SPAN on this switch? Thanks
We have a Point-to-Point E-line between to local branches and I was wondering if it is possible to link two switches together over it? No available ports on the router at the remote branch. One switch is a Cisco 3750 and the other is a Cisco 2960X. ...
According to the vxlan config guide, vpc between two vteps is not supported: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/vxlan/configuration/guide/b_NX-OS_VXLAN_Configuration_Guide/configuring_vxlan_flood_and_learn.html Physic...
I am attempting to get my syslog messages to contain my hostname. Below is my current config as well as a copy of the logging in the router. Can someone explain what I am doing wrong? I have also included my version of IOS in case that is a factor...
I have uploaded a packet tracer file that I need some help in. I would like to know how can I set up subnetting in this network. From my limited knowledge in packet tracer, I know that I have to set an IP address on the router, and then set the defau...
Dynamic or static Routing over vPC supported? Need to configure it in order to support NSX.
I'm a little confused about mac flooding attacks and VLANs. It would seem to me that flooding attacks should only be able to turn a vlan into a hub rather than the entire switch. Even if you cause the CAM table to fill up with fake mac addresses sh...
Hello, I'm trying to get access to the Switch Catalyst Express 500 (CE500) PID WS-CE500-24TT V01and followed one of the links discussed in this forum see below, the link within the forum is invalid and just put back to the main page of Cisco's websi...
Hi , Why do i need or in which senarios i need preempt to be configured on both routers. Preempt allows the router with it configured to take over the active role if it has a higher priority than the other router. I heard it is requried when we are...
I have a 3750X stack that is running on ver, 15.2(1)E2 that recently showed signs of rejecting port-channel configuration. Has anyone seen this same issue? If so did you resolve and what version did you move to to resolve. Thanks for any assistance!
I have 4 stacks switch WS-C2960X connected to N5K-C5672 through VPC.and from 2960X side use LACP portchannel.CRC keeps increasing, only on connection to Nexus02, no CRC connection to Nexus01.I've tried changing SFPs, changing Ports, changing Cables. ...
Hello, Flapping ports in my experience is normally to do with a loop or dodgy cable. Can someone back sense of this flap and why so many ports/mac addresses? This is from a 3750 the root switch which has a trunk to a 2960 on 2/0/11 and I see this fro...
