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>>>>> Nagarjuna G writes:
Nagarjuna> On Sun, May 25, 2008 at 11:48 AM, Raj Mathur <[EMAIL PROTECTED]>
wrote:
>> Hi,
>>
>> Anyone have suggestions for a router that can do the following?
>>
>> - Handle 2 providers: one ADSL and one Cable (Ethernet).
>>
>> - Load balance between the two links.
>>
>> - Periodically check status of links and switch to one line only if the
>> other line goes down.
>>
>> - Internal stuff like DHCP, etc.
>>
>> Specific model numbers and your experience would be useful, thanks!
>>
Nagarjuna> recently we replaced our cisco routers in our LAN with vyatta
which is
Nagarjuna> based on a fork of GNU zebra.
GNU zebra and Quagga are dependent on routing information received from
different routing protocols to update routing table.
Nagarjuna> They have excellent documentation and several kinds of
Nagarjuna> load balancing, as well as many other tricks that can be
Nagarjuna> done with sophisticated routers are possible. Our load
Nagarjuna> balancing is working fine with vyatta. we are the server
Nagarjuna> image provided at their site: http://www.vyatta.org/
I can see from your gnowledge.org's IPv4 address, that it is part of a
/16 allocation to TIFR. So you're probably using your vyatta box as
border router, receiving route updates from the peers.
So I think, a simple script to monitor the connectivity should include
the following:
1. Do a ping to an IP address after every n seconds, from each of the
interfaces, '-I' option of ping, and if exitcode from any ping is
non-zero, it means the link is not working and should not be included in
routes.
2. After you get the list of interfaces, you can create a multipath
route based on them.
HTH
P.S. I've not worked with any vyatta box or GNU zebra/quagga instance.
- --
Ashish Shukla आशीष शुक्ल http://wahjava.wordpress.com/
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