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Hi James., Thank you as usual to respond me quick..! Well I wanted to validate rfc-1662. I see in ppp source deflate, bsd, compression are these covers rfc-1662 if so please provide me further info on this Regs, Arun On Wed, Jun 23, 2010 at 11:09 PM, James Carlson <carlsonj@xxxxxxxxxxxxxxx> wrote: > arun b wrote: >> HI, >> I wanted to know PPP -extension support , compression ... >> does it available in the ppp-2.4.4. ? if so how do we test it.? >> Any info you know to share would be appreciated.. > > Yes, it supports data compression, and it's enabled by default. See the > pppd(1M) man page for details. Note that compression schemes need to be > built into your kernel, so what's _actually_ supported depends on what > kernel modules you have. > > The debug log messages will be helpful here as well, as they indicate > which compression algorithms are being negotiated. > > I'm not sure what sort of testing you want to do with it, though, so > you'll need to be more specific. For what it's worth, I find that > passing large amounts of highly-compressible data (such as the letter > "A" repeated a few million times in a file) is one good stress test, and > passing incompressible data (such as a large bzip2'd file) is another. > Each explores a different end in the usual string-based data compression > algorithm. The Canterbury Corpus is another fairly well-known test, and > is probably a good middle-of-the-road test for passing compressible data. > > But there are other forms of "testing" that are possible here, including > performance and interoperability, and those may require other sorts of > testing schemes and other considerations, so I'm not really sure what it > is you're after. > > -- > James Carlson 42.703N 71.076W <carlsonj@xxxxxxxxxxxxxxx> > -- To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html