Game On Old Friend It’s hard to believe that it’s been almost 2 years since I passed the R/S lab and my digits (40755) were assigned. I remember the numbers just passed 40k and I was so hoping to get 40007. This way I could be 007. <GRIN> Now I’m ready for the next challenge. My motivation for CCIE DC was simple. First I wanted to challenge myself yet again. Second, I feel strongly that a deep understanding of UCS…
CCIE Data Center Lab Blueprint 1.1c Implementing Port Channels ConfigBytes #2 Port Channels A port channel bundles physical links into a channel group to create a single logical link that provides the aggregate bandwidth of up to 16 physical links. If a member port within a port channel fails, the traffic previously carried over the failed link switches to the remaining member ports within the port channel. F and M series line card port members cannot be mixed into…
Hi Cisco friends! I had a great question from a customer today regarding failure scenarios and vPC. On the surface, I thought this is an easy one. However, when I really gave it deep thought it really depends on the type of failure. Was the failure on the peer-link, peer keepalive, vPC member port, or the worst case dual active/double failure? Let’s go through some of the failure examples. vPC Member Port Failure If one vPC member port goes down – for…