Administrator Guide

Table Of Contents
Default iSCSI Optimization Values
The following table lists the default values for the iSCSI optimization feature.
Table 47. iSCSI Optimization Defaults
Parameter Default Value
iSCSI Optimization global setting Disabled.
iSCSI CoS mode (802.1p priority queue mapping) dot1p priority 4 without the remark setting when you enable
iSCSI. If you do not enable iSCSI, this feature is disabled.
iSCSI CoS Packet classification When you enable iSCSI, iSCSI packets are queued based on
dot1p, instead of DSCP values.
VLAN priority tag iSCSI flows are assigned by default to dot1p priority 4 without
the remark setting.
DSCP None: user-configurable.
Remark Not configured.
iSCSI session aging time 10 minutes
iSCSI optimization target ports iSCSI well-known ports 3260 and 860 are configured as
default (with no IP address or name) but can be removed as
any other configured target.
iSCSI session monitoring Disabled. The CAM allocation for iSCSI is set to zero (0).
iSCSI Optimization Prerequisites
The following are iSCSI optimization prerequisites.
iSCSI optimization requires LLDP on the switch. LLDP is enabled by default (refer to Link Layer Discovery Protocol (LLDP)).
iSCSI optimization requires configuring two ingress ACL groups The ACL groups are allocated after iSCSI Optimization is
configured.
Configuring iSCSI Optimization
To configure iSCSI optimization, use the following commands.
1. For a non-DCB environment: Enable session monitoring.
CONFIGURATION mode
cam-acl l2acl 3 ipv4acl 4 ipv6acl 0 ipv4qos 2 l2qos 1 l2pt 0 ipmacacl 0 vman-qos 0
ecfmacl 0 iscsioptacl 2
NOTE:
Content addressable memory (CAM) allocation is optional. If CAM is not allocated, the following features are
disabled:
session monitoring
aging
class of service
You can enable iSCSI even when allocated with zero (0) CAM blocks. However, if no CAM blocks are allocated, session
monitoring is disabled and the show iscsi command displays this information.
2. For a non-DCB environment: Enable iSCSI.
CONFIGURATION mode
iscsi enable
3. Configure DCB and iSCSI.
4. Save the configuration on the switch.
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iSCSI Optimization