This blog was originally started to better help me understand the technologies in the CCIE R&S blueprint; after completing the R&S track I have decided to transition the blog into a technology blog.

CCIE #29033

This blog will continue to include questions, troubleshooting scenarios, and references to existing and new technologies but will grow to include a variety of different platforms and technologies. Currently I have created over 185 questions/answers in regards to the CCIE R&S track!! Note: answers are in the comment field or within "Read More" section.

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Saturday, August 20, 2011

FCoE - Convergance

FCoE (Fibre Channel over Ethernet) allows companies to further converge their infrastructure reducing the complexity and costs.
  • Reduction in Cables and Switches
  • Reduction in Interface Cards
  • Reduction in Power and Cooling
FCoE runs on your data network and removes the need to have a separate Fibre channel infrastructure. FcoE is not routable and will not extend across routed IP networks. FCoE runs on top of Ethernet and enhancements to Ethernet were required in order to prevent frame loss (PFC). The new enhancements to Ethernet are referred to as Lossless Ethernet.
  • Priority Flow Control (802.1Qbb)
Additional enhancements to Ethernet may include (dependent on the vendor)
  • Bandwidth Management (802.1Qaz)
  • Congestion Management (802.1Qau)
  • Shortest Path Bridging (802.1aq)
Servers leverage CNA (Converged Network Adapter) with contains both the NIC (Network Interface Card) and HBA (Host Bus Adapter). CNAs have 1 or more ports.

Note: The diagram below is NOT meant to show redundancy.



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