Hello All,=20

I'm new to QoS under Linux so please be indulgent=20
with the following question.

I try to run tc under Linux 2.4.20, my kernel has the
following options:

CONFIG_PACKET=3Dy
# CONFIG_PACKET_MMAP is not set=20
CONFIG_NETLINK=3Dy
CONFIG_NETLINK_DEV=3Dy
CONFIG_NETFILTER=3Dy
# CONFIG_NETFILTER_DEBUG is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=3Dy
CONFIG_INET=3Dy
CONFIG_IP_MULTICAST=3Dy
CONFIG_IP_ADVANCED_ROUTER=3Dy
# CONFIG_IP_PNP is not set  =20
CONFIG_NET_IPIP=3Dm
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_INET_ECN is not set
CONFIG_SYN_COOKIES=3Dy
[...]
# QoS and/or fair queueing
#
CONFIG_NET_SCHED=3Dy
CONFIG_NET_SCH_CBQ=3Dy
CONFIG_NET_SCH_HTB=3Dy
CONFIG_NET_SCH_CSZ=3Dy
CONFIG_NET_SCH_PRIO=3Dy
CONFIG_NET_SCH_RED=3Dy
CONFIG_NET_SCH_SFQ=3Dy
CONFIG_NET_SCH_TEQL=3Dy
CONFIG_NET_SCH_TBF=3Dy
CONFIG_NET_SCH_GRED=3Dy
CONFIG_NET_SCH_DSMARK=3Dy
CONFIG_NET_SCH_INGRESS=3Dy
CONFIG_NET_QOS=3Dy
CONFIG_NET_ESTIMATOR=3Dy
# CONFIG_NET_CLS is not set

but when I try to do:

[root@mysystem]# tc qdisc add dev ppp0 root tbf rate 128kbit latency =
50ms burst 1540

I get this:
RTNETLINK answers: Invalid argument

syslog says:
modprobe: Can't locate module sch_tbf

if I compile it as a module, the module fails to load anyway (some =
unresolved symbols)...

Do I miss an option that should be set in the kernel .config file ?

Thanks for your help,
Mathieu.

On Thursday 29 May 2003 22:12, Mathieu MALAISE wrote:
> Hello All,
>
> I'm new to QoS under Linux so please be indulgent
> with the following question.
>
> I try to run tc under Linux 2.4.20, my kernel has the
> following options:
>
> CONFIG_PACKET=y
> # CONFIG_PACKET_MMAP is not set
> CONFIG_NETLINK=y
> CONFIG_NETLINK_DEV=y
> CONFIG_NETFILTER=y
> # CONFIG_NETFILTER_DEBUG is not set
> # CONFIG_FILTER is not set
> CONFIG_UNIX=y
> CONFIG_INET=y
> CONFIG_IP_MULTICAST=y
> CONFIG_IP_ADVANCED_ROUTER=y
> # CONFIG_IP_PNP is not set
> CONFIG_NET_IPIP=m
> # CONFIG_NET_IPGRE is not set
> # CONFIG_IP_MROUTE is not set
> # CONFIG_INET_ECN is not set
> CONFIG_SYN_COOKIES=y
> [...]
> # QoS and/or fair queueing
> #
> CONFIG_NET_SCHED=y
> CONFIG_NET_SCH_CBQ=y
> CONFIG_NET_SCH_HTB=y
> CONFIG_NET_SCH_CSZ=y
> CONFIG_NET_SCH_PRIO=y
> CONFIG_NET_SCH_RED=y
> CONFIG_NET_SCH_SFQ=y
> CONFIG_NET_SCH_TEQL=y
> CONFIG_NET_SCH_TBF=y
> CONFIG_NET_SCH_GRED=y
> CONFIG_NET_SCH_DSMARK=y
> CONFIG_NET_SCH_INGRESS=y
> CONFIG_NET_QOS=y
> CONFIG_NET_ESTIMATOR=y
> # CONFIG_NET_CLS is not set
>
> but when I try to do:
>
> [root@mysystem]# tc qdisc add dev ppp0 root tbf rate 128kbit latency 50ms
> burst 1540
>
> I get this:
> RTNETLINK answers: Invalid argument
>
> syslog says:
> modprobe: Can't locate module sch_tbf
>
> if I compile it as a module, the module fails to load anyway (some
> unresolved symbols)...
Have you booted from your recompiled kernel?
If not, you are trying to load to module in the wrong kernel and that's why
you get the inresovled symboles problem.

Stef

--

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
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