User Manual

TRex 103 / 113

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7.9 Cisco VIC support

• Supported from TRex version v2.12.

• Since version 2.21, all VIC card types supported by DPDK are supported by TRex, using “--software” command line argument.

Notice that if using “--software”, no HW assist is used, causing supported packet rate to be much lower. Since we do not have

all cards in our lab, we could not test all of them. Will be glad for feedback on this (good or bad).

• If not using “--software”, following limitations apply:

– Only 1300 series Cisco adapter supported.

– Must have VIC ﬁrmware version 2.0(13) for UCS C-series servers. Will be GA in Febuary 2017.

– Must have VIC ﬁrmware version 3.1(2) for blade servers (which supports more ﬁltering capabilities).

– The feature can be enabled via Cisco CIMC or USCM with the advanced ﬁlters radio button. When enabled, these additional

ﬂow director modes are available: RTE_ETH_FLOW_NONFRAG_IPV4_OTHER RTE_ETH_FLOW_NONFRAG_IPV4_SCTP

RTE_ETH_FLOW_NONFRAG_IPV6_UDP RTE_ETH_FLOW_NONFRAG_IPV6_TCP RTE_ETH_FLOW_NONFRAG_IPV6_SCTP

RTE_ETH_FLOW_NONFRAG_IPV6_OTHER

7.9.1 vNIC Conﬁguration Parameters

Number of Queues

The maximum number of receive queues (RQs), work queues (WQs) and completion queues (CQs) are conﬁgurable on a

per vNIC basis through the Cisco UCS Manager (CIMC or UCSM). These values should be conﬁgured as follows:

• The number of WQs should be greater or equal to the number of threads (-c value) plus 1

• The number of RQs should be greater than 5

• The number of CQs should set to WQs + RQs

• Unless there is a lack of resources due to creating many vNICs, it is recommended that the WQ and RQ sizes be set to

the maximum.

Advanced ﬁlters

advanced ﬁlter should be enabled

MTU

set the MTU to maximum 9000-9190 (Depends on the FW version)

more information could be found here enic DPDK