Dell PowerEdge FX2 Dell PowerEdge FN I/O Aggregator Configuration Guide 9.6(0 - Page 113
Monitoring iSCSI Traffic Flows, iSCSI Optimization Example - enclosure
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• iSCSI DCBx TLVs are supported. The following figure shows iSCSI optimization between servers in a server enclosure and a storage array in which an Aggregator connects installed servers (iSCSI initiators) to a storage array (iSCSI targets) in a SAN network. iSCSI optimization running on the Aggregator is configured to use dot1p priority-queue assignments to ensure that iSCSI traffic in these sessions receives priority treatment when forwarded on Aggregator hardware. Figure 16. iSCSI Optimization Example Monitoring iSCSI Traffic Flows The switch snoops iSCSI session-establishment and termination packets by installing classifier rules that trap iSCSI protocol packets to the CPU for examination. Devices that initiate iSCSI sessions usually use well-known TCP ports 3260 or 860 to contact targets. When you enable iSCSI optimization, by default the switch identifies IP packets to or from these ports as iSCSI traffic. iSCSI Optimization 113
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