Gigabit Ethernet Interface Overview - HP StorageWorks SR2122 User Manual

Gigabit Ethernet Interface Overview

Each of the two 1-Gigabit Ethernet interfaces on the SR2122-2 (GE 1 and GE 2)
provide the following capabilities:
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IP Storage Router SR2122-2 User Guide
Multiple IP addresses per SCSI routing instance—allows IP hosts to connect
to SCSI routing instances via one or more IP addresses. Each Gigabit Ethernet
interface can be configured with up to 12 unique IP addresses which provides
a maximum of 24 unique IP addresses per SR2122-2 Storage Router. If
VLAN access is used, the maximum number of unique IP addresses per
Gigabit Ethernet interface increases to 16. This provides a maximum of 32
unique IP addresses per SR2122-2 Storage Router when configured with
VLAN.
Assignment of a secondary interface per SCSI routing instance—allows the
same IP address to be assigned to each Gigabit Ethernet interface; one
interface is assigned as primary and one interface is assigned as secondary. If
the primary Gigabit Ethernet interface loses connection to the host and if the
secondary connection is assigned and still connected, the IP address moves to
the secondary Gigabit Ethernet interface which then becomes active.
Assignment as an interface to an FCIP peer—allows assignment of an IP
address as a primary Gigabit Ethernet interface between an FCIP instance and
an FCIP peer. Each SR2122-2 can be configured with up to two FCIP
instances, and each FCIP instance can be configured with one peer for a
maximum of two FCIP peers per SR2122-2 Storage Router when configured
for FCIP.
Assignment of a secondary interface per FCIP instance—allows the same IP
address to be assigned to each Gigabit Ethernet interface configured for an
FCIP instance; one interface is assigned as primary and one interface is
assigned as secondary. If the primary interface loses connection to the
network and remains down for two seconds, the IP address moves to the
secondary Gigabit Ethernet interface, which then becomes active.
Assignment as a management IP address—allows each Gigabit Ethernet
interface to have one IP address assigned per logical interface, as a
management interface. This IP address is in addition to any multiple IP
address(es) per SCSI routing instance or FCIP instance assigned.
Assignment of a secondary management IP address—allows the same IP
address to be assigned to each Gigabit Ethernet interface configured as a
management interface; one interface is assigned as primary and one interface
is assigned as secondary. If connection to the primary Gigabit Ethernet
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