Date: Thu, 22 Apr 2010 11:35:07 -0400 From: "Carrick, David" <dcarrick@uniongas.com> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: 3-Line MLPPP DSL on BSD - MTU/MRRU/MRU?? Message-ID: <DFFD45803093584DAAE0B7E16D156BDA32C38DCEF2@CHATEXCHANGE.gtna.gt.ds>
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Hi Guys, I have posted this question in a few different forums but I have not had much luck with a response and I'm hoping someone can help me out. I recently upgraded to a triple-5meg DSL service setup with MLPPP here in Ontario Canada through a provider called Teksavvy. I chose FreeBSD as my o/s of choice and I'm using MPD5.5 to bond the connections. I believe they are using Juniper equipment on their end, not sure if it matters. I have been using Linux for 15 years, and am an AIX Infrastructure Analyst by trade, but I am not very familiar with more advanced networking terms and technologies, and I am pretty new to FreeBSD. I was wondering if someone could help me with the optimal values for my mpd.conf file - Max Transmit units, Max recieve unit, all that stuff. Here is what I've got going so far... Please note I am not on the freebsd-net mailing list so if you could CC me on the responses that would be great! default: load DSL DSL: create bundle static B1 set iface route default set ipcp ranges 0.0.0.0/0 0.0.0.0/0 set ipcp enable req-pri-dns set ipcp enable req-sec-dns set ipcp disable vjcomp set bundle disable round-robin set bundle disable bw-manage set bundle links L1 L2 L3 set iface mtu 1492 set iface disable on-demand set iface enable tcpmssfix create link static L1 pppoe set auth authname xxx@wiredhighspeed.com set auth password xxx set link max-redial 0 set link keep-alive 10 60 set pppoe iface fxp1 set pppoe service "teksavvy" set link enable multilink set link enable shortseq set link disable protocomp set link mrru 1500 # set link mru 1500 set link mtu 1492 set link bandwidth 5056000 set link action bundle B1 open create link static L2 pppoe set auth authname xxx@wiredhighspeed.com set auth password xxx set link max-redial 0 set link keep-alive 10 60 set pppoe iface fxp2 set pppoe service "teksavvy" set link enable multilink set link enable shortseq set link disable protocomp set link mrru 1500 # set link mru 1500 set link mtu 1492 set link bandwidth 5056000 set link action bundle B1 open create link static L3 pppoe set auth authname xxx@wiredhighspeed.com set auth password xxx set link max-redial 0 set link keep-alive 10 60 set pppoe iface fxp3 set pppoe service "teksavvy" set link enable multilink set link enable shortseq set link disable protocomp set link mrru 1500 # set link mru 1500 set link mtu 1492 set link bandwidth 5056000 set link action bundle B1 open ---- I can't really recall why I commented the MRU values - I think they defaulted to 1500 anyway. I adapted the config from a fast 2 Line setup posted in another forum around here. When I tested it as two lines, it was definitely "as fast as it could go". Not as impressed with the 3 line setup. Any advice or direction on this would be greatly appreciated. Thanks David Carrick Senior AIX Infrastructure Analyst AIX Services | Spectra Energy 519.436.4600 x2464 (desk) 800.571.8446 x2464 (toll free) 519.437.7194 (cell) dcarrick@uniongas.com<mailto:dcarrick@uniongas.com> For first call resolution please contact the Spectra Energy Enterprise IT Help Desk @ local 4444 or toll free @ 1-866-252-8881home | help
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