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Queue size for 500Mbit/s

Mon Dec 09, 2013 2:43 pm

Guys is there a table available for best practice queue size for various speeds?
For example I need to limit the WAN interface on my RouterOS 6.7 which is 1Gbit to 500Mbit/sec and I'm puzzled over which queue size would be best for this scenario. 50 packets would be too little, 500 probably too high (will introduce much latency). Maybe someone can provide any input...
Frequent Visitor
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Posts: 77
Joined: Sun Apr 26, 2009 8:52 pm

Re: Queue size for 500Mbit/s

Thu Dec 19, 2013 9:26 am

I use 4x2048 packet RED queues for 400mbit - there's no visible latency.
Latency can appear when queue is full(but it's better to have 1-2ms latency than drops due congestion).
You can test it yourself to pick best settings for your case.
Commonly I don't use queues less than 512 packets(I used less on my old router, but CCR1036-12G4S is working really good with big queues).
CCR1036-12G-4S +6x100Mbit ^_^

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