zMonkey is an open-source 200G network impairment emulator tool to emulate the real-world WAN/DC conditions for your applications. it can support 90Mpps packet forwarding with latency, jitter and packet drop simulation.
Latency/Jitter accuracy is around 200 microsecond, packet drop rate accuracy is a round 0.1%
zMonkey is based on DPDK and provide a udp based northbound interface for remote controller change the simulated latency/jitter/loss.
============================================================================================================================================
zMonkey Network Chaos System (by zartbot)
LeftPort-------->>>>>>>>>>--------->>>>>>>>> | <<<<<<<<<--------<<<<<<<<<<---------RightPort
|
Latency : 10000 us | Latency : 0 us
Jitter : 0 us | Jitter : 0 us
Loss : 0 %% | Loss : 0 %%
Duplicate : 0 %% | Duplicate : 0 %%
|
Total RX : 68276668 pps ---> | <--- Total RX : 6176950 pps
Total TX : 6176950 pps <--- | ---> Total TX : 68281475 pps
--------------------------------------------------------------------------------------------------------------------------------------------
Monkey[ 0] 4091413 --> LeftPort --> [Drop 0 -->(Q-Depth 40282|Fail 0)--> DeQ 4092640] --> RightPort --> 4092628
Monkey[ 1] 4084706 --> LeftPort --> [Drop 0 -->(Q-Depth 39992|Fail 0)--> DeQ 4086496] --> RightPort --> 4086483
Monkey[ 2] 4340355 --> LeftPort --> [Drop 0 -->(Q-Depth 42786|Fail 0)--> DeQ 4341760] --> RightPort --> 4341781
Monkey[ 3] 4331071 --> LeftPort --> [Drop 0 -->(Q-Depth 42617|Fail 0)--> DeQ 4330944] --> RightPort --> 4330951
Monkey[ 4] 4318890 --> LeftPort --> [Drop 0 -->(Q-Depth 42145|Fail 0)--> DeQ 4320416] --> RightPort --> 4320417
Monkey[ 5] 4318237 --> LeftPort --> [Drop 0 -->(Q-Depth 44043|Fail 0)--> DeQ 4316896] --> RightPort --> 4316896
Monkey[ 6] 4321452 --> LeftPort --> [Drop 0 -->(Q-Depth 43103|Fail 0)--> DeQ 4319104] --> RightPort --> 4319119
Monkey[ 7] 4332730 --> LeftPort --> [Drop 0 -->(Q-Depth 46148|Fail 0)--> DeQ 4331424] --> RightPort --> 4331417
Monkey[ 8] 4317736 --> LeftPort --> [Drop 0 -->(Q-Depth 43199|Fail 0)--> DeQ 4319424] --> RightPort --> 4319428
Monkey[ 9] 4320157 --> LeftPort --> [Drop 0 -->(Q-Depth 43567|Fail 0)--> DeQ 4322016] --> RightPort --> 4322016
Monkey[ 10] 4332787 --> LeftPort --> [Drop 0 -->(Q-Depth 43934|Fail 0)--> DeQ 4332160] --> RightPort --> 4332139
Monkey[ 11] 4319630 --> LeftPort --> [Drop 0 -->(Q-Depth 43216|Fail 0)--> DeQ 4321536] --> RightPort --> 4321538
Monkey[ 12] 4085023 --> LeftPort --> [Drop 0 -->(Q-Depth 41323|Fail 0)--> DeQ 4085216] --> RightPort --> 4085216
Monkey[ 13] 4091710 --> LeftPort --> [Drop 0 -->(Q-Depth 42466|Fail 0)--> DeQ 4090976] --> RightPort --> 4090975
Monkey[ 14] 4329958 --> LeftPort --> [Drop 0 -->(Q-Depth 42092|Fail 0)--> DeQ 4330176] --> RightPort --> 4330186
Monkey[ 15] 4340813 --> LeftPort --> [Drop 0 -->(Q-Depth 42871|Fail 0)--> DeQ 4340288] --> RightPort --> 4340285
--------------------------------------------------------------------------------------------------------------------------------------------
Monkey[ 0] 384868 <-- LeftPort <-- [DeQ 384868 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 384868
Monkey[ 1] 389342 <-- LeftPort <-- [DeQ 389342 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 389342
Monkey[ 2] 480953 <-- LeftPort <-- [DeQ 480953 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 480953
Monkey[ 3] 389303 <-- LeftPort <-- [DeQ 389303 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 389303
Monkey[ 4] 381398 <-- LeftPort <-- [DeQ 381398 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 381398
Monkey[ 5] 387385 <-- LeftPort <-- [DeQ 387385 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 387385
Monkey[ 6] 286082 <-- LeftPort <-- [DeQ 286082 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 286082
Monkey[ 7] 389327 <-- LeftPort <-- [DeQ 389327 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 389327
Monkey[ 8] 286569 <-- LeftPort <-- [DeQ 286569 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 286569
Monkey[ 9] 387979 <-- LeftPort <-- [DeQ 387979 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 387979
Monkey[ 10] 380284 <-- LeftPort <-- [DeQ 380284 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 380284
Monkey[ 11] 388636 <-- LeftPort <-- [DeQ 388636 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 388636
Monkey[ 12] 476803 <-- LeftPort <-- [DeQ 476803 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 476803
Monkey[ 13] 387778 <-- LeftPort <-- [DeQ 387778 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 387778
Monkey[ 14] 389524 <-- LeftPort <-- [DeQ 389524 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 389524
Monkey[ 15] 390719 <-- LeftPort <-- [DeQ 390719 <--(Q-Depth 0|Fail 0)<-- Drop 0] <-- RightPort <-- 390719
============================================================================================================================================1.support 100Gbps with 100ms latency, you must change the DPDK MBUF limit in the following file and re-compile DPDK.
Modify dpdk-21.08/config/rte_config.h
/* EAL defines */
#define RTE_MAX_HEAPS 32
#define RTE_MAX_MEMSEG_LISTS 512 //128
#define RTE_MAX_MEMSEG_PER_LIST 32768 //8192
#define RTE_MAX_MEM_MB_PER_LIST 131072 //32768
#define RTE_MAX_MEMSEG_PER_TYPE 131072 //32768
#define RTE_MAX_MEM_MB_PER_TYPE 262144 //65536- git clone and build
git clone https://github.com/zartbot/zmonkey
cd zmonkey
build
sudo ./build/zmonkey -- -h
zmonkey [EAL options] -- <Parameters>
-f --first_lcore First lcore used for forwarding thread
-n --core_num Number of lcore used for forwarding
-m --mbuf_size Number of elements in mbuf
-r --ring_size Number of elements in mbuf
-c --control_port Remote control udp port(default:6666)
zMonkey chaos config
-d --l2r_latency Left -> Right Delay time [us]
-D --r2l_latency Right -> Left Delay time [us]
-j --l2r_jitter Left -> Right Jitter time [us]
-J --r2l_jitter Right -> Left Jitter time [us]
-l --l2r_loss Left -> Right Loss rate [%%]
-L --r2l_loss Right -> Left Loss rate [%%]
-u --l2r_dup Left -> Right Duplicate rate [%%]
-U --r2l_dup Right -> Left Duplicate rate [%%]
Example:
8-Thread to handle 100G/100ms latency with 12.34% packet drop_rate
zmonkey -- --first_lcore 24 --core_num 8 --mbuf_size 2097152 --l2r_latency 100000 --l2r_loss 1234
16-Thread with 1M element buffer per thread,first lcore start at core.24
zmonkey -- --first_lcore 24 --core_num 16 --mbuf_size 1048576 --l2r_latency 10000
Short parameters
zmonkey -- -f 24 -n 12 -m 2097152 -d 100000 -D 100000check the example code in control/python
import socket
import random
import time
udpSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
monkeyHost = ('127.0.0.1',6666)
# instr
# 1: config latency
# 2: config jitter in micro seconds
# 3: config packet drop rate in %%(1/10000)
# 4: config packet duplication rate in %%(1/10000)
#
# direction
# 0: left-->right
# 1: right-->left
#
# value uint64_t
instr = 3
direction = 0
value = 1234
sendData = str(instr) +"," + str(direction) +","+ str(value)
udpSocket.sendto(sendData.encode(),monkeyHost)