I received some really good questions about FCoE, VN-Tag, FEX, and vPC from a reader named Lucas. Although I had 10 other things to do, I just couldn’t resist highlighting these questions, and my answers, in a new post that I thought my readers would enjoy! Brad, You have amazing information about Nexus and UCS [...]
Cisco UCS Fabric Extender (FEX) QoS
December 8, 2010 By 9 Comments
Cisco UCS Q&A #3 – flexible configuration
October 22, 2010 By 5 Comments
This is a follow-up question from the same reader Geoff who’s original question about traffic steering was discussed here. Geoff responded to my original answer by brining up my Folly in HP vs UCS Tolly article and doubting that Cisco UCS really has active/active fabrics. Follow-up Question: Hi Brad, thank you very much for your [...]
Cisco UCS Q&A #2 – End Host Mode forwarding behavior
October 22, 2010 By 12 Comments
This question comes from a reader named Wei about how Cisco UCS behaves in End Host Mode with respect to MAC learning and flooding. Wei paints a scenario of two servers in the same VLAN, one inside Cisco UCS, the other outside of Cisco UCS. With the Fabric Interconnect in End Host Mode, what happens [...]
Cisco UCS Q&A #1 – traffic steering
October 20, 2010 By 1 Comment
This question about Cisco UCS traffic steering comes from a reader named Geoff: There is one aspect of UCS which I have been trying to understand and have not found a good explanation. Perhaps you can point me in the right direction and maybe if it is of general interest it might form the basis [...]
Data Center Networking Q&A #1 – starring HP, Nexus 1000V, QoS
June 3, 2010 By 9 Comments
I thought it would be fun to pilot a series of posts where I pick out interesting search engine queries that were used to find my blog. Often times these are good questions that deserve a good answer, or other interesting topics that can start a good discussion or fun debate. This particular series will [...]
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