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I'm seeing a bizarre behavior where one of my switches is showing spanning tree costs much higher than I'd expect. Here's a simple diagram of the network:
The root switch election, root port election, and designated port elections all happen as expe...
I launched an upgrade for a DNA center managed switch which resulted in a failure and this error message:
The switch is a Cisco 9300 with an embedded WLC.
Running Image:
C9800-SW-iosxe-wlc.17.03.03.SPA.bin, cat9k_iosxe.17.03.03.SPA.bin
Golden I...
I'm running an ISE lab for practice. I am failing to register an ISE node:
When I hover over the exclamation point, it says:Registration FailedSync Status: Node Registration or Sync failed. Please de-register and register the node again
On my Seco...
I'm running a home lab for ISE 2.7. I generated some temporary demo licenses through my Cisco account on the Product License Registration page and then imported them to ISE that look like this:
I deleted my evaluation licenses without thinking.. and...
I'm struggling to figure out how I can perform NAT on ingress packets on the Gi0/1 interface of "isp-router". I want to translate the destination address to 23.1.2.100. Keep in mind this is a lab environment.
isp-router Gi0/1: ip nat outside is appli...
I know it's not recommended but in this case, I do not think it's the problem. On the 9500-24Y4C switches running 17.6.5, pathcost long is the default method.
Catalyst 9500-24Y4C's both on 17.6.5 code. I see the same issue on a different switch (Catalyst 9300 on 16 code) having the same issue that I didn't include in this topology. I'm leaning towards something hidden in the configuration that's doing this...
The core is on pathcost method short, because it's an old switch that I'm going to replace. But that technically shouldn't matter.. it appears DC2 is the switch at fault because it's interpreting it's own local interface costs as being insanely high ...
