McDATA Eclipse 2640 SAN, Administration And Configuration Manual

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2
Configuring System Basics
2-15
Configuring IP Addresses
Configuring IP Addresses
SAN Routers use the iFCP and iSCSI protocols, which use IP
addresses for all routing and forwarding of storage traffic. Using the
iFCP/iSCSI protocol, all Fibre Channel addresses are mapped to one
or more IP addresses.
You must configure two IP addresses with SAN Routers: the external
iFCP/iSCSI network and the IP network. When sending storage
traffic to the external network, SAN Routers uses the “external” IP
addresses associated with the TCP ports. When sending storage
traffic to the internal network, the SAN Routers use the
inband address
as the source address for the storage traffic.
Figure 2-5 shows external and internal storage networks. Traffic sent
to the “external” network uses TCP ports, while traffic sent to the
“internal” network uses Fibre Channel ports.