Re: Need a Traffic Shaping Crash Course Please

[Scarletdown <gsutton9503@wavecable.com>]

For some reason, this isn't showing up on lists.debian.user, so I will 
go ahead and repost it here...


David Purton wrote:

> On Sun, Jul 18, 2004 at 04:29:06PM -0700, Scarletdown wrote:
>
> > -bash-2.05b# ifup eth1
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > RTNETLINK answers: Invalid argument
> > Failed to bring up eth1.
>
>
> Chances are, you're missing kernel modules
>
> This is some relavant bits from my 2.4 kernel config
>
>
> You need the QoS stuff:
>
> #
> # QoS and/or fair queueing
> #
> CONFIG_NET_SCHED=y
> CONFIG_NET_SCH_CBQ=m
> CONFIG_NET_SCH_HTB=m
> CONFIG_NET_SCH_CSZ=m
> # CONFIG_NET_SCH_HFSC is not set
> CONFIG_NET_SCH_PRIO=m
> CONFIG_NET_SCH_RED=m
> CONFIG_NET_SCH_SFQ=m
> CONFIG_NET_SCH_TEQL=m
> CONFIG_NET_SCH_TBF=m
> CONFIG_NET_SCH_GRED=m
> # CONFIG_NET_SCH_DELAY is not set
> CONFIG_NET_SCH_DSMARK=m
> CONFIG_NET_SCH_INGRESS=m
> CONFIG_NET_QOS=y
> CONFIG_NET_ESTIMATOR=y
> CONFIG_NET_CLS=y
> CONFIG_NET_CLS_TCINDEX=m
> CONFIG_NET_CLS_ROUTE4=m
> CONFIG_NET_CLS_ROUTE=y
> CONFIG_NET_CLS_FW=m
> CONFIG_NET_CLS_U32=m
> CONFIG_NET_CLS_RSVP=m
> CONFIG_NET_CLS_RSVP6=m
> CONFIG_NET_CLS_POLICE=y
>
>
>
> I've also including advanced routing stuff in the kernel gives better
> results:
>
> CONFIG_IP_ADVANCED_ROUTER=y
> CONFIG_IP_MULTIPLE_TABLES=y
> CONFIG_IP_ROUTE_FWMARK=y
> CONFIG_IP_ROUTE_NAT=y
> CONFIG_IP_ROUTE_MULTIPATH=y
> CONFIG_IP_ROUTE_TOS=y
> CONFIG_IP_ROUTE_VERBOSE=y


How do I get that stuff into the kernel?  I'm assuming that it is going 
to require compiling a new one, which is something I dread having to do. 
The one time I attempted to compile a new kernel, the process failed 
miserably, resulting in an unbootable system (I guess I must have missed 
a step along the way.)  That was on a testing system fortunately, so 
there was no harm done and I simply did a complete Linux reinstall.

This time, however, it will need to be done on two fully operational 
systems, so a failure will be more "catastrophic".  Therefore, I will 
need precise step by step instructions on how to do this.  And if things 
do still go wrong, instructions on how to recover using something like 
Knoppix (which is actually how I did my Linux install in the first 
place) or Mepis.

At least, once this is done, I should have another useful geekly skill 
under my belt.  :D