[mrtg] Re: Kb/s or b/s
kyrre at kyrres.net
Mon Apr 9 04:51:25 MEST 2001
> Great. What did you change?
I had to figure out the "target" I had to gather the data from. Luckely
I allready have some knowledge for the 801, and snmpwalked both the
routers and found out what the differences and right targets where.
Here`s the target:
> What I notice at a first glance is the huge (compared to the
> rest) spike at 19:30. This causes the rest of the traffic to
> become virtually invisible.
Yes. That's right. The reason is (I think) that this network is resident
at our home, and noone was awake in the "invisible" timearea. :)
> Are you sure there isn't any local traffic involved? That
> is, traffic not going through the router?
There is some local traffic involved, but the main parts of the traffic
should come from "out there".
> Try to figure out if
> - there is no traffic that you didn't take into account
Hm. Don't thing so. DHCP, Sendmail, POP, HTTP and the usual ports are
alle routed via the Cisco.
> - the data returned by SNMP is correct (for instance, you
> could roughly compare it to the output of ifconfig or
> other tools)
There it is. I`l keep on looking. Thanks..
> Then compare the log files. If you forget about this spike,
> do they more or less show similar numbers?
Rougly yes. But there is some noticable differences.
> What happens if you start a huge download. Do the two graphs
> show the same after a while?
No. What I cant seem to find out is if it`s k/s *or* kb/s that's the
right numbers for the FreeBSD og for the Cisco. When the traffic
increases on the Cisco, it also increases on the FreeBSD (and vicevera).
There`s only the matter off which of the graphs shows the "right"
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