Data Center Architecture with Panduit, Intel, and Cisco

9
AN-02
MoR Architecture
Middle of Row architecture is basically the same as EoR architecture except that the switch cabinets are located in the
middle of the row, with cabling branching to the right and left to each of the server cabinets. The cable lengths are generally
shorter, which can reduce cabling complexity and allows more connectivity options. The shorter runs can use lower cost
copper instead of fiber and allow for single patch fields instead of the dual point patching normally used in EoR. This feature
makes MoR one of the easiest topologies to maintain. However, centralizing the switching cabinets can also cause power
and cooling issues if not properly planned for during the layout phase. The MoR topology is well suited to pod architectures
like the below illustration which provide good redundancy and compartmentalized or/segregated computing commonly
required by co-location sites and larger data centers.
Top view of a typical EoR / MoR layout showing redundant cabling.