How Zero-Frame loss is achieved using open source technologies

1. TUNING FOR ZERO-FRAME LOSS
A perfect match between hardware and software
Federico Iezzi
EMEA Telco Architect
23rd November 2017

4. Aug ‘14
Oct ‘14May ‘13
Feb ‘17Apr ‘15Oct ‘10
‘06 ‘15/‘16 Aug ‘17

5. 1 ATCA blade
== 1 VM
== 1 VNFc
1 VNF == N x VNFc
N

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18. #!/bin/bash
_TX_QUEUE_SIZE="tx_queue_size=1024"
_RX_QUEUE_SIZE="rx_queue_size=1024"
i=0
while [ $# -gt 0 ]
do
case "$1" in
-netdev|-device)
args[i]="$1"
(( i++ ))
shift
if [[ "$1" =~ "virtio-net-pci" ]]
then
args[i]=${1},${_RX_QUEUE_SIZE},{_TX_QUEUE_SIZE}
(( i++))
shift
fi
;;
*)
args[i]="$1"
(( i++ ))
shift ;;
esac
done
exec /usr/libexec/qemu-system-x86_64 "${args[@]}"

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testpmd
vhost-user
SR-IOV
VF
bare-metal
--rxq=4VNF

32. THANK YOU
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