Manish Kathuria escreveu:
On 2/8/07, Tom Lobato <tomlobato@xxxxxxxxx> wrote:
Thank you for the script. I'm trying it.
Well, I made a simple modification and would like to hear opnions.
Until now, I just added one more TESTIP, so I'm pinging one IP for
each link.
Also I'm using the IP instead name address, and used the DNS IP of
each provider
for the ping. I made this because the ping to external sites (yahoo,
google) is too slow
here, mainly when the link is under heavy load. So I'm afraid it can
try ping
without success and "think" the link is down.
I just used a popular external site because it may happen that
connectivity from your location to the provider's DNS is there but the
provider's link with the rest of the internet is down so even if you
get a successful ping reply, the link isn't working in the real sense.
ok, I noted here my DNS server block pings (!) so I'm also using a site now.
Also, I preferred using a name instead of IP address because there
could be multiple IP addresses associated with the site name and they
can change too. But I don't see anything wrong in your approach. What
do you mean by slow ? I don't think ping reply time should be an
issue. We are more concerned with the success. Obviously, it should
not time out.
I agree, but here "slow == timeout" =) I'm suspecting the adsl modem is the
problem. I have two dynamic IP links, adsl/pppoe 400kbps and
cable-modem/dhcp 4Mbps.
Anyway, I changed my mind and will connect links directly to linux (no
routers), with
the drawback of not have fixed IP/GW/MASK/NET's, but with advantages of
need no routers,
need no port forwarding in routers, a more auto-sufficient solution.
So, I'm using your script as base (although I had made another, I liked
yours), making scripts
for dhcp and pppoe create files with connection info, from where it
reads data for set LB. If
someone more wants it, tell me and I send a mail.
I know I could apply the patchs and these scripts would too more simple,
but the patch
does not detect fail if it is beyond the gateway.
The ping reply times I get here for sites like www.yahoo.com and
www.google.com are to the tune of 300 ms.
Here, without any internet use from localnet, i get ~150ms for both. So,
really,
it appears I have another problem, not ping delay. Maybe too load on
adsl link, although
I set weights 10 for cable link and 1 for adsl.
Tom Lobato
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