Developers Guide

Table Of Contents
Table 47. iSCSI Optimization Defaults (continued)
Parameter Default Value
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 4 ipv4acl 4 ipv6acl 0 ipv4qos 2 l2qos 1 l2pt 0 ipmacacl 0 vman-qos 0
fcoeacl 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 this information the show iscsi command displays this information.
2. For a non-DCB environment: Enable iSCSI.
CONFIGURATION mode
iscsi enable
3. For a DCB environment: Configure DCB and iSCSI.
4. Save the configuration on the switch.
EXEC Privilege mode
write memory
5. Reload the switch.
EXEC Privilege mode
reload
After the switch is reloaded, DCB/ DCBx and iSCSI monitoring are enabled.
6. (Optional) Configure the iSCSI target ports and optionally the IP addresses on which iSCSI communication is monitored.
CONFIGURATION mode
[no] iscsi target port tcp-port-1 [tcp-port-2...tcp-port-16] [ip-address address]
tcp-port-n is the TCP port number or a list of TCP port numbers on which the iSCSI target listens to requests. You
can configure up to 16 target TCP ports on the switch in one command or multiple commands. The default is 860, 3260.
Separate port numbers with a comma. If multiple IP addresses are mapped to a single TCP port, use the no iscsi
target port tcp-port-n command to remove all IP addresses assigned to the TCP number.
iSCSI Optimization
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