A few years ago I had a TAC case open with Cisco.  The case was centered around an unusually high CPU condition on a Cisco 3800ISR series router.  This router was only routing traffic between the Ethernet interfaces, doing some SNAT (stateful NAT), and basic BGP routing – so the CPU should not have been…

Configuring DHCP on routers is not something that is normally done in a production network.  Typically in a production network DHCP servers are either Windows, Linux, or some other vendors implementation.  Occasionally you will need to configure a Cisco device to provided DHCP for initial purposes – say a new location build-out, a lab network,…

Well, finally had a chance to take a Cisco CCIE Service Provider class last week – and I am very glad I did.  I know I was not ready for the lab when I took it the other month, and it was my hope that this class would help me fill in the pieces.  I…