On Sun, Mar 06, 2005 at 11:58:11AM +0200, jarmo wrote: > Withs kernel 2.6.11 ax25 t1_timeout is working badly... > Expl. I have set t1_timeout to 10s (10000).Now testing.. > Taking radio of,set connection to somewhere,first try then > 10s time second try...But then 20s and try next 30s and try... > So t1_timeout is increasing?In 2.6.10 timeout is 10 and > it does not increase...Possible bug?
No, pilot error ;-) Linux supports three different backoff types which can be configured via /proc or sysctl. This is how to display the backoff type of interface sp0, for example: [EMAIL PROTECTED] sysctl net.ax25.sp0.backoff_type net.ax25.sp0.backoff_type = 1 [EMAIL PROTECTED] 1 in this example stands for linear backoff which is the default and what you've been observing. 0 would be no backoff which generally in a shared RF environment is probably unfriendly and can mathematically be shown to cause network meltdowns. Finally 2 would means exponential backoff, which would use t1, 2*t1, 4*t1, 8*t1 for the waiting time, but never goes worse than 8 * t1. You can change the value with sysctl also but generally linear backoff is quite reasonable. 73 de DL5RB op Ralf -- Loc. JN47BS / CQ 14 / ITU 28 / DOK A21 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
