My friend Josh over at blindhog.net has found a collection of cheat sheet gems for the network dude(tte). There’s sheets on BGP, OSPF, Subnetting, QoS, connector types, and more. Check it out. Cheat Sheets – Packetlife.net Aaron ConawayI like to lean my head to the left, hit it with the palm of my right...
Posts Tagged ‘ qos ’
Qos Priority
We just talked about tagging traffic and policing traffic, but we haven’t talked about prioritizing traffic. Tagging just sets a value in the header. Policing sets a “bandwidth ceiling” that can’t be crossed. Prioritization guarantees a certain amount of bandwidth for a flow/app/etc. no matter what’s going on. Prioritization offers you a certain amount...
QoS Policing
We covered QoS tagging the other day, but that just marks packets. I think you’re old enough now that we should actually do some policing. Policing is where you restrict the amount of bandwidth that a flow or set of flows can use. For example, say you have a site that serves webpages to...
Qos Tagging
I’ve been trying to get some experience on Cisco VOIP, and, as you probably know, Quality of Service (QoS) is quite important in that realm. Since VOIP is very time-sensitive, you have to be sure your gear delivers the voice packets first. A packet in an HTTP transaction can wait another 200ms without any...
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