Netgear Switch M4100-12G-POE+ User Manual Page 495

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Quality of Service (QoS) Commands
495
ProSafe M4100 and M7100 Managed Switches
Detecting the establishment and termination of iSCSI sessions and connections by
snooping packets used in the iSCSI protocol.
Maintaining a database of currently active iSCSI sessions and connections to store data
about the participants.
This allows the formulation of classifier rules giving the data
packets for the session the desired QoS treatment.
Installing and removing classifier rule sets as needed for the iSCSI session traf
fic.
Monitoring activity in the iSCSI sessions to allow for aging out session entries if the
session termination packets are not received.
The means of detecting the establishment and termination of iSCSI sessions is
accomplished by installing classifier rules to trap iSCSI protocol packets to the CPU for
examination.
This protocol uses well-known TCP ports for initiators to contact targets with
3260 and 860. Additional port numbers or “port number/target IP address” can also be
configured for monitoring if an installation uses ports other than the well-known ports. The
well-known ports are configured as part of the default configuration of the component and
can be removed if desired by the user.
iscsi enable
The iscsi enable Global Configuration mode command globally enables iSCSI awareness.
Format iscsi enable
Mode
Default
no iscsi enable
This command is to disable iSCSI awareness use the no form of this command. When User
uses this command, iSCSI resources will be released.
Format no iscsi enable
Mode
Default
iscsi target port
This command configures iSCSI port/s, target addresses, and names.
Note: When working with private iSCSI ports (not IANA assigned iSCSI
ports 3260/860), it is recommended to specify the target IP address
as well, so the switch will only snoop frames with which the TCP
destination port is one of the configured TCP ports, and the
destination IP is the target’s IP address. This way the CPU is not to
be falsely loaded by non-iSCSI flows (if by chance other applications
Global Config
Disabled
Global Config
Disabled
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