NETGEAR M4350-24F4V 24-Port 10G SFP+ Managed AV Network Switch - Manual (Page 274)

Internet Small Computer System
Interface
The Internet Small Computer System Interface (iSCSI) feature can help you to track iSCSI
traffic between iSCSI initiators and target systems, usually storage systems such as
network-attached storage (NAS) and storage area network (SAN) systems.
The switch monitores or snoopes traffic to detect packets used by iSCSI devices in
establishing iSCSI sessions and connections. Data from these exchanges is used to
create classification rules that assign the traffic between the devices to a configured
traffic class. Packets in the flow are queued and scheduled for egress on the destination
port based on these rules.
In a network that includes iSCSI initiators and targets, iSCSI can monitor iSCSI sessions
or give iSCSI traffic preferential Quality of Service (QoS) treatment.
Dynamically-generated classifier rules are used to direct the iSCSI data traffic to queues
that you can assign preference over other data traveling through the switch. This can
prevent 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 might also interfere with other network control-plane traffic, such as ARP or
LACP. That means that you must balance the preferential treatment of iSCSI traffic with
the requirements of other critical data in the network.
You can view and manage iSCSI optimization by giving traffic between an iSCSI initiator
and a target system a special QoS treatment.
In addition, by enabling the remark function, packets can be updated with IEEE 802.1
or IP-DSCP values. Remarking packets with priority data provides special QoS treatment
as the packets travel through the network.
Enable iSCSI and configure the QoS settings
for iSCSI traffic
By default, iSCSI is disabled and the switch does not optimize iSCSI traffic. You can
enable iSCSI and configure the QoS settings for iSCSI traffic.
To enable iSCSI and configure the QoS settings for iSCSI traffic:
1. Launch a web browser.
2. In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see Log in to the main UI with a web
browser on page 27 and the subsections.
Main User Manual 274 Configure Switching Information
Fully Managed Switches M4350 Series Main User Manual