NETGEAR M4100, M7100 manual Iscsi, Shows an example of iSCSI implementation

33. iSCSI 33

This chapter includes the following sections:

•Enable iSCSI Awareness with VLAN Priority Tag on page 552

•Enable iSCSI Awareness with DSCP on page 553

•Set the iSCSI Target Port on page 554

•Show iSCSI Sessions on page 555

The iSCSI feature is used in networks containing iSCSI initiators and targets where the administrator desires to protect the iSCSI traffic from interruption by giving the traffic preferential QoS treatment. The 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 transiting the switch. This can avoid session interruptions during times of congestion that would otherwise cause iSCSI packets to be dropped.

The administrator can select VPT (VLAN Priority Tag) or DSCP mapping for the QoS preferential treatment. iSCSI flows are assigned by default to the highest VPT/DSCP queue not used for stack management or voice VLAN. The administrator should also take care of configuring the relevant Class of Service parameters for the queue chosen in order to complete the setting.

Figure 51 shows an example of iSCSI implementation.

Figure 51. Sample iSCSI implementation

Chapter 33. iSCSI 551