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Implementing Cisco UCS Solutions by Prasenjit Sarkar, Farhan Ahmed Nadeem

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Cabling FI and IOM

UCS is an integrated solution that handles both network traffic and management control. All management and data movement intelligence for chassis components and blade servers is present in the FIs and IOM modules (which are line cards for the FIs). Therefore, proper cabling between FIs and IOM modules is an important design consideration.

IOM – FI cabling topology

IOM modules are used to connect blade server chassis to the FIs and act as line cards to them. It is therefore necessary to maintain proper connectivity between IOMs and FIs. Since an IOM module becomes part of the FI, multiple links from a single IOM can only be connected to a single FI and not across to the other FI. Depending on the IOM model, there can be one, two, ...

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