From: gladston@br.ibm.com
Date: Tue Dec 07 2004 - 11:15:55 GMT-3
Hi Ade,
Things to concern:
- Big frames can increase delay of voice packets, so fragmentation is good.
- WFQ is not enough for good voice quality; then, you need to choose a better aproach. LLQ and PQ are options, with the first being prefered.
- You do not want your router throtle back the CIR when BECNs are received; so do not enable it.
Even more, you do not want to send rate above the contract and have frames discarded, so use the same CIR of your service provider.
- You must know how many call will be served, to set the appropriate priority queue. As you know, bandwidth not used by priority queue will be used by data, so it does not hurt set a little more than what you got from the math. (considering you are not worried with data traffic)
- About the signalling? What you like to reserve bandwidth for it? As it is TCP, it can deal with congestion, but would be nice to reserve some bandwidth (no priority, just bandwidth)
- Remember that when you enable FRTS, it is for all PVCs. But fragmentation is enable under frame-relay class; so you need to enable fragmentation on the others VCs separately
- Specifically about Frame Relay, TC, fragmentation and queue for each VC.
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