When someone says "extend the network fabric" are they referring to a protocol or something else?
Hmm "extend the network fabric." Without context it's a little hard to guess. In general this refers to connecting switches together over FC/E-ports. (I'm assuming FC is the network here?). Now, it is possible to do this with network devices that are not switches, for instance a SAN/WAN device could be used that connects to a local switch over an E-port, but then communicates over a metropolitan or wide area link using a TCP/IP network. The remote site could be the same configuration where the SAN/WAN device connects to the MAN or WAN with TCP/IP and connects to the SAN using an E-port connection to the switch.
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