Chapter 1.1.5. Switch port layout for large edge switches
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4 SAN Volume Controller: Best Practices and Performance Guidelines 1.1.4 IBM 2109- M12/ Brocade 12000 in an SVC environment This model of SAN switch is well suited for the edge switch in a core- edge fabric. A fully configured 64- port domain is made up of 16 4- port “ quads”, organized into columns ( line cards) and horizontal rows ( see Figure 1- 1). Each quad is connected via internal 2 Gb links to the other quads in its column and row. The routing between any specific pair of quads always traverses the same links, and this routing is not adjusted for traffic levels or congestion. All if this means that your ISLs ( each of which can be up to a four- port trunk) need to be on separate ...
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