User's Manual

PurposeCommand or Action
Enables or disables TCP Receive Offload Checksum
Validation as follows:
Server
/chassis/adapter/host-eth-if/offload #
set tcp-rx-checksum-offload {disable
| enable}
Step 38
• disable —The CPU validates all packet
checksums.
• enable —The CPU sends all packet checksums
to the hardware for validation. This option may
reduce CPU overhead. This is the default.
Enables or disables TCP Transmit Offload Checksum
Validation as follows:
Server
/chassis/adapter/host-eth-if/offload #
set tcp-tx-checksum-offload {disable
| enable}
Step 39
• disable —The CPU validates all packet
checksums.
• enable —The CPU sends all packet checksums
to the hardware for validation. This option may
reduce CPU overhead. This is the default.
Enables or disables TCP Large Packet Receive Offload
as follows:
Server
/chassis/adapter/host-eth-if/offload #
set tcp-large-receive-offload {disable
| enable}
Step 40
• disable —The CPU processes all large packets.
• enable —The hardware reassembles all segmented
packets before sending them to the CPU. This
option may reduce CPU utilization and increase
inbound throughput. This is the default.
Exits to the host Ethernet interface command mode.Server
/chassis/adapter/host-eth-if/offload #
exit
Step 41
Enters Receive-side Scaling (RSS) command mode.Server /chassis/adapter/host-eth-if #
scope rss
Step 42
Enables or disables RSS, which allows the efficient
distribution of network receive processing across
Server /chassis/adapter/host-eth-if/rss #
set rss {disable | enable}
Step 43
multiple CPUs in multiprocessor systems. The default
is enable for the two default vNICs, and disable for
user-created vNICs.
Enables or disables IPv4 RSS. The default is enable.Server /chassis/adapter/host-eth-if/rss #
set rss-hash-ipv4 {disable | enable}
Step 44
Enables or disables TCP/IPv4 RSS. The default is
enable.
Server /chassis/adapter/host-eth-if/rss #
set rss-hash-tcp-ipv4 {disable |
enable}
Step 45
Enables or disables IPv6 RSS. The default is enable.Server /chassis/adapter/host-eth-if/rss #
set rss-hash-ipv6 {disable | enable}
Step 46
Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 1.5
104 OL-28893-01
Managing Network Adapters
Modifying vNIC Properties