John, Yes, and No. We still run IPX over our network (don't ask). JMcL John Brandis wrote: > > Hi Jenny, > > Is your carrier Telstra ? > > Do you use Telstra TPIPS for your cloud/next hop router ? > > John > Sydney, Australia > > -----Original Message----- > From: Jenny McLeod [mailto:nobody@;groupstudy.com] > Sent: Wednesday, October 23, 2002 9:17 AM > To: [EMAIL PROTECTED] > Subject: Re: run VoIP on a frame network at BIR instead of > [7:55833] > > > Depends on the frame switch, I think. > I asked our telco about this as well (quite a while ago), and > they said that > on entry to the "cloud", they automatically reset any DE bits > set. So either > way, your scheme isn't likely to work, but how much of a > negative effect it > has will depend on whether your telco drops entering DE packets > or just > resets the DE bits. > > JMcL > Steven A. Ridder wrote: > > > > This was Cisco's old theory. In theory, it would work, but > in > > reality, if the frame switch saw a packet come into it's > ingress > > interface with the > > packet already marked DE, it will drop it because it was > > unexpected. > > > > I asked the telco's your question last year and that's the > answer they > > gave me. Cisco seems to have abandoned that theory a while > ago, > > which is > > probably why you haven't seen it written anywhere. > > > > > > ""dj"" wrote in message > news:200210171534.PAA26762@;groupstudy.com... > > > Running a VoIP application over a frame-relay network with > > 256k CIR and > > > 512k BIR. From the LLQ docs I reviewed, to guarantee good > > voice > > > quality, traffic shaping all frame traffic to CIR is > > recommended along > > > with LLQ of voice packets. > > > > > > Would like to take advantage of BIR bandwidth and still > > guarantee voice > > > packets are not dropped by the frame relay switch network > when > > > congestion occurs. Here are my thoughts: > > > > > > What if the router were to pre-mark all data packets as > > "Discard > > > Eligible" (DE) on the outbound serial interface connected to > > the frame > > > network. Voice packets would NOT be marked DE. Then run up > > to BIR > > > rates with LLQ prioritization for voice. Would the carrier > > frame network > > > switches drop only the pre-marked DE data packets (by the > > router) when > > > congestion occurred and NOT drop any voice packets? I > > haven't found any > > > Cisco links that addressed QOS in this fashion. Any links > on > > this topic > > > would be greatly appreciated. > > > > > > The objective is to squeeze more bandwidth (BIR vs CIR) out > > of your > > > frame relay network without dropping any voice packets. Why > > would this > > > not work and what are the caveats? > > > > > > regards, > > > dj > ********************************************************************** > > visit http://www.solution6.com > > UK Customers - http://www.solution6.co.uk > > ********************************************************************* > This email message (and attachments) may contain information > that is confidential to Solution 6. If you are not the intended > recipient you cannot use, distribute or copy the message or > attachments. In such a case, please notify the sender by > return email immediately and erase all copies of the message > and attachments. Opinions, conclusions and other information > in this message and attachments that do not relate to the > official business of Solution 6 are neither given nor endorsed > by it. > ********************************************************************* > >
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