Manual:Performance Testing with Traffic Generator

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Revision as of 16:54, 11 October 2012 by Marisb (talk | contribs) (RB1100AHx2 Test setup)
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Summary

RouterOS Version 6 introduced new tool "traffic generator", which allows to perform performance testing without expensive testing hardware. Traffic is generated from one more router in the network.

This article shows necessary configuration and hardware to perform the same tests published in www.routerboard.com.

RB1100AHx2 Test setup

First step is to choose which ports we will be using for testing.

RB1100AHx2-diagram-streams.png

If we look at the diagram how ports are connected to CPU, fastest combinations are:

  • port from switch1 to port form switch chip2,
  • ether11 to switch chip,
  • ether12/13 to switch chip or to ether11.


To get the maximum out of RB1100AHx2 we will be running 6 streams in total:

  • from ether1 to ether6
  • from ether1 to ether11
  • from ether6 to ether1
  • from ether6 to ether11
  • from ether11 to ether6
  • from ether11 to ether1


In our test environment one RB1100AHx2 will be device under test (DUT) and other RB1100AHx2 will be Traffic generator device.

Connect ether1 to ether1, ether6 to ether6, ether11 to ether11 and proceed with software configuration. Either it will be routing (layer3) testing or bridging (layer2) testing.


Routing Performance Testing

DUT Config

/ip address
add address=1.1.1.254/24 interface=ether1 network=1.1.1.0
add address=2.2.2.254/24 interface=ether6 network=2.2.2.0
add address=3.3.3.254/24 interface=ether11 network=3.3.3.0


Traffic Generator Config

/ip address
add address=1.1.1.1/24 interface=ether1 network=1.1.1.0
add address=2.2.2.2/24 interface=ether6 network=2.2.2.0
add address=3.3.3.3/24 interface=ether11 network=3.3.3.0

/tool traffic-generator packet-template
add name=r12 header-stack=mac,ip,udp ip-gateway=1.1.1.254 ip-dst=2.2.2.2
add name=r13 header-stack=mac,ip,udp ip-gateway=1.1.1.254 ip-dst=3.3.3.3
add name=r21 header-stack=mac,ip,udp ip-gateway=2.2.2.254 ip-dst=1.1.1.1
add name=r23 header-stack=mac,ip,udp ip-gateway=2.2.2.254 ip-dst=3.3.3.3
add name=r32 header-stack=mac,ip,udp ip-gateway=3.3.3.254 ip-dst=2.2.2.2
add name=r31 header-stack=mac,ip,udp ip-gateway=3.3.3.254 ip-dst=1.1.1.1
Icon-note.png

Note: To force MAC address re-discovery (on device/configuration change, just apply emply "set" command to necessary packet-templates)



Running Tests

/tool traffic-generator
quick tx-template=r12,r13,r21,r23,r31,r32 packet-size=60 mbps=300

We are specifying 60byte packet in traffic generator to get 64 byte packet on ethernet.

Do the same with different packet sizes:

/tool traffic-generator
quick tx-template=r12,r13,r21,r23,r31,r32 packet-size=508 mbps=500
/tool traffic-generator
quick tx-template=r12,r13,r21,r23,r31,r32 packet-size=1514 mbps=500


Icon-note.png

Note: mind that speed in quick mode is specified per stream, so if you have two streams per port, you need to send 1/2 of traffic per stream



Bridging Performance Testing

DUT Config

/interface bridge add
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=ether6
add bridge=bridge1 interface=ether11

Traffic Generator Config

/ip address
add address=1.1.1.1/24 interface=ether1 network=1.1.1.0
add address=2.2.2.2/24 interface=ether6 network=2.2.2.0
add address=3.3.3.3/24 interface=ether11 network=3.3.3.0

/tool traffic-generator packet-template
add header-stack=mac,ip,udp ip-src=1.1.1.1/32 ip-dst=2.2.2.2/32 name=b12
add header-stack=mac,ip,udp ip-src=1.1.1.1/32 ip-dst=3.3.3.3/32 name=b13
add header-stack=mac,ip,udp ip-src=2.2.2.2/32 ip-dst=1.1.1.1/32 name=b21
add header-stack=mac,ip,udp ip-src=2.2.2.2/32 ip-dst=3.3.3.3/32 name=b23
add header-stack=mac,ip,udp ip-src=3.3.3.3/32 ip-dst=1.1.1.1/32 name=b31
add header-stack=mac,ip,udp ip-src=3.3.3.3/32 ip-dst=2.2.2.2/32 name=b32

Running Tests

/tool traffic-generator
quick tx-template=b12,b13,b21,b23,b31,b32 packet-size=60 mbps=200
/tool traffic-generator
quick tx-template=b12,b13,b21,b23,b31,b32 packet-size=508 mbps=500
/tool traffic-generator
quick tx-template=b12,b13,b21,b23,b31,b32 packet-size=1514 mbps=500

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