Re: [c-nsp] Bonded T3 Bandwidth issue
Keep in mind the Windows TCP scaling limitations, with default window sizes an RTT of 10ms gives you a maximum of 52Mbps. http://cisconet.com/traffic-analysis/throughput/104-tcp-throughput-calculati on-formula.html I am seeing a lot of this as customer bandwidth demands increase, this is the reason for the very expensive layer 7 acceleration devices like Cisco WAAS. Stevan -Original Message- From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Lawrence Sent: Wednesday, February 23, 2011 10:40 PM To: cisco-nsp@puck.nether.net Subject: [c-nsp] Bonded T3 Bandwidth issue I have a bonded T3 that I have never been able to get over 45mbs. I have been on the phone with my ISP and they are able to verify that both circuits work and they feel bonded circuits are working fine and that any problem is on my side Does anybody know what could cause a bonded T3 not to be able to deliver bandwith over 45 mbs? o I am testing this circuit with a udp client/server transfer program with the server on an att circuit that can more than handle 100 mbs. o I have tied to hit the bonded t3 with muliple isps just incase it is an isp to isp thing. The t3's never go over 45 mbs. o I have run mutiple speed test.net benchmarks and that never show any speed faster that 45mbs (They work with my att circuit when leads me to belive that that are semi reliable) Any help is appreciated! ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Q-in-Q frame sent into Q-in-Q tunnel
Hello, As long as you adjust your switching MTU for 4 dot1q tags, things should work fine. We have a customer who is doing Q-in-Q on in our Q-in-Q already. I believe (but don't quote me on this!) you can have up to 8 layer 2 dot1q tags at once. Stevan Zupanic -Original Message- From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Jeff Fitzwater Sent: Thursday, February 10, 2011 3:01 PM To: cisco-nsp@puck.nether.net Subject: [c-nsp] Q-in-Q frame sent into Q-in-Q tunnel I have an external customer which I need to tunnel across our network, but the traffic they are sending is QinQ already; Can I QinQ the traffic again so that I can control the VLAN ID ? Is my only concern the additional 4 bytes that I have to add to the MTU size in all the switches it propagates through? Thanks for any help. Jeff Fitzwater OIT Network Systems Princeton University ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
