McDATA Eclipse 2640 SAN Technical Information PDF herunterladen (Seite 118)

5-10

Eclipse™ 2640 SAN Router Administration and Configuration Manual

Configuring iSCSI Ports

1. Select the iSCSI tab from the Advanced TCP Configuration dialog

box (refer to

Figure 5-5) to specify the iSCSI parameters:

Figure 5-5 Advanced TCP Configuration iSCSI Parameters

• Selective ACKnowledgement - (SACK) allows acknowledgement

of non-contiguous sequence numbers to reduce the amount of

retransmitted data when packets are lost. Enable this for better

performance in congested networks (assuming the remote

device also supports SACK).

• Large PDU - When enabled, the SAN Router delivers data to

iSCSI end nodes using maximum length iSCSI data PDUs,

independent of how data is received from the FC device. The

maximum length (MaxRecvDataSegmentLength) is

negotiated at login.

• Digest - This adds a digest (extended checksum) to each

payload for end-to-end integrity checking.

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McDATA Eclipse 2640 SAN Technical Information Seite 118