well i wonder really, whats so bad about dsl ? xdsl is not enough specific, ghdsl, sdsl, hdsl .. that are all leased line version of dsl. if that troubles even the SC modem will trouble. i brought my link up .. and it stayed up for years, except as in front of TIX-1 the cables where under water.
using some adsl/vdsl is not so a good idea, as the uplink may be to slow,and the stability of those setup would shure end up in flapping. if the backbone of SC fails CES and even A/V- DSL variants will fail .. So this redundancy is not the right way. btw, about expensive router, i dont think on the client side is an fullfeed needed. an second hand router will lower the bill and doing the job as well. i got asked once from a client to have bgp on his cable connection and an ADSL connection .. the only thing he stopped bothering me was to give him an estimated price for the equipment ;-) using an 2 uplink firewall like the symantec or whatever will do the job better, and an email relay in front on the isp side will send to both ip's. with dyndns services it would even work if both connection are dynamic. positive story, this will lead to loadsharing, negative about that sometimes the way the connection goes is not under controll. Like p2p programms which are open more than one connection to the same destination. but set to failover only will work in any cases. Roger > Lukas Beeler wrote: > > Now, even expensive FB-DIMM memory by vendors like HP and IBM only > > costs around 360 CHF for 4 GB. And even small two way x86 boxes max > > out at around 32 - 48 GB. Even if Cisco and Juniper charge 10x as > > much, that'd still be only 3600 CHF. > > > > I understand that routers use ASICs and probably faster memory than > > servers, but i can't really imagine it to be a problem to pop 4GB > > memory into a router that's connected directly to the internet. > > > > Now, where am i mistaken? > > > > There still a lot of hardware around which is at the memory expansion limit. > And (talking about Cisco) the IOS images don't tend to get smaller... > So finally you end up replacing the whole router or NM-engine for some kilo-$ > instead of a relative cheap memory upgrade... > > I agree with Fredy's concerns about link stability and flapping, especially > for residential services. > BGP on DSL can although be deployed as backup solution or, if you're close > enough to the "BBCS owner", as main link. > The major problem you face there is getting a skilled person when you're in > trouble... > The help-desk guy/girl you get at the phone does usually don't even know how > to spell B-G-P and will ask you why you have 4 of them :-) > > Daniele > > -- > This message has been scanned for viruses and > dangerous content by MailGate, and is > believed to be clean. > > > _______________________________________________ > swinog mailing list > swinog@lists.swinog.ch > http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog > _______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
