Hi,

When I first installed my bridge I got some behaviour like that. Then I
changed the interfaces I was using on the bridge and tried again. Everything
worked fine. It seems that one of the NICs I was using or its driver module,
was slowing down the bridging process.

My suggestion would be, set up your bridge with other ethernet cards and try
again. That worked for me.

Regards,

Edo


----- Mensaje original -----
De: "Juan C. Moreno" <[EMAIL PROTECTED]>
Para: <[EMAIL PROTECTED]>
Enviado: Mi�rcoles, 18 de Diciembre de 2002 10:45
Asunto: [Bridge] newbie question (increase RTT)


Hi All,

I want to control bandwidth usage on my network so I put a Linux box between
my network and my Internet provider, configured the bridge and some qos HTB
rules, everithing is working fine, except that some delays has been added to
my network, examples:

If I ping my neighbor router, _WITHOUT_ the bridge (and without qos HTB
set):

64 bytes from X.X.X.10: icmp_seq=1 ttl=64 time=0.1 ms
64 bytes from X.X.X.10: icmp_seq=2 ttl=64 time=0.1 ms
64 bytes from X.X.X.10: icmp_seq=3 ttl=64 time=0.1 ms
64 bytes from X.X.X.10: icmp_seq=4 ttl=64 time=0.1 ms
64 bytes from X.X.X.10: icmp_seq=5 ttl=64 time=0.1 ms
64 bytes from X.X.X.10: icmp_seq=6 ttl=64 time=0.1 ms
64 bytes from X.X.X.10: icmp_seq=7 ttl=64 time=0.1 ms

and so on, RTT is 0.1 ms

when I ping _WITH_ the bridge stablished (and without qos HTB set):

64 bytes from X.X.X.10: icmp_seq=0 ttl=254 time=5.9 ms
64 bytes from X.X.X.10: icmp_seq=1 ttl=254 time=0.9 ms
64 bytes from X.X.X.10: icmp_seq=2 ttl=254 time=0.8 ms
64 bytes from X.X.X.10: icmp_seq=3 ttl=254 time=3.4 ms
64 bytes from X.X.X.10: icmp_seq=4 ttl=254 time=1.3 ms
64 bytes from X.X.X.10: icmp_seq=5 ttl=254 time=1.5 ms
64 bytes from X.X.X.10: icmp_seq=6 ttl=254 time=7.0 ms
64 bytes from X.X.X.10: icmp_seq=7 ttl=254 time=1.0 ms
64 bytes from X.X.X.10: icmp_seq=8 ttl=254 time=3.4 ms
64 bytes from X.X.X.10: icmp_seq=9 ttl=254 time=3.4 ms
64 bytes from X.X.X.10: icmp_seq=10 ttl=254 time=0.7 ms
64 bytes from X.X.X.10: icmp_seq=11 ttl=254 time=11.7 ms
64 bytes from X.X.X.10: icmp_seq=12 ttl=254 time=1.3 ms

take a look at RTT, why?

and even more extraneous thing, take a look at:
http://www.3konet.com/ping-probe/

Enormous delays on nights when no traffic is sent!!! (the graphs shows min
RTT and average RTT)
(I'm sure this delays are intruduced by the bridge, if I stop the bridge
everithing works fine)

any ideas???

some data:

bridge between 2 ethernet intefaces: OEM i82557/i82558 10/100 Ethernet

brctrl addbr br0
brctrl stp br0 off

# enable bridging in interfaces
brctrl addif br0 eth0
brctrl addif br0 eth1

# setup interfaces
ip link set eth0 up
ip link set eth1 up

# enable bridge
ip link set br0 up


thanks in advanced
(excuse my horrible english) :P

Juan Carlos Moreno.


_______________________________________________
Bridge mailing list
[EMAIL PROTECTED]
http://www.math.leidenuniv.nl/mailman/listinfo/bridge

_______________________________________________
Bridge mailing list
[EMAIL PROTECTED]
http://www.math.leidenuniv.nl/mailman/listinfo/bridge

Reply via email to