3–Viewing Router InformationiSCSI Ports3-22 ISR645610-00 B Enable Data Digest enables or disables support for iSCSI data digest.Data digest is an ISCSI feature that adds a validity check to iSCSI datato verify that no corruption has occurred during transmission of thedata. The iSR6152 router supports data digest in its hardware tomaximize performance.Select the check box to enable this option; clear the check box todisable it. CHAP Settings include the following: Enable CHAP enables or disables CHAP support. Select the checkbox to enable this option; clear the check box to disable it. CHAP Secret lets you define the CHAP secret used for authenticatingan iSCSI client. The box is available only when the Enable CHAPcheck box is selected. The CHAP secret can contain any ASCIIcharacters, and should be at least 16 characters in length.StatisticsThe Statistics page for the selected iSCSI port contains a scrollable table ofparameters and values, as shown in Figure 3-13. The table is divided into twosections: the upper section contains statistics that are port specific, and the lowersection contains shared statistics (common to all iSCSI ports).NOTE:Enabling either the Header Digest or Data Digest slows performance,especially on 10Gb iSCSI ports.
