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Configuring Switching Information
139
ProSafe M5300 Switch
iSCSI
The Internet Small Computer System Interface (iSCSI) feature helps network administrators
track iSCSI traffic between iSCSI initiators and target systems. This is accomplished by
monitoring, or snooping traffic to detect packets used by iSCSI stations in establishing iSCSI
sessions and connections. Data from these exchanges may optionally be used to create
classification rules to assign the traffic between the stations to a configured traffic class. This
affects how the packets in the flow are queued and scheduled for egress on the destination
port.
In networks containing iSCSI initiators and targets, iSCSI helps to monitor iSCSI sessions or
give iSCSI traffic preferential QoS treatment. Dynamically-generated classifier rules are used
to direct the iSCSI data traffic to queues that can be given the desired preference
characteristics over other data traveling through the switch. This may help to avoid session
interruptions during times of congestion that would otherwise cause iSCSI packets to be
dropped. However, in systems where a large proportion of traffic is iSCSI, it may also
interfere with other network control-plane traffic, such as ARP or LACP.
The preferential treatment of iSCSI traffic needs to be balanced against the needs of other
critical data in the network.
From the iSCSI link, you can access the following pages:
• Basic on page 139
• Advanced on page 141
Basic
From the iSCSI Basic link, you can access the following pages:
• Global Configuration on page 139
• Sessions on page 141
Global Configuration
Use this page to configure the global iSCSI settings on the switch.
To access the iSCSI Global Configuration page, click Switching > iSCSI > Basic > Global
Configuration.