[c-nsp] Application issue over ISP

masood at nexlinx.net.pk masood at nexlinx.net.pk
Mon Dec 14 06:52:00 EST 2009


have a look at the following URL..

http://www.ciscoblog.com/archives/2008/08/dynamic_failove.html

Kind Regards,
Masood
Blogs: http://weblogs.com.pk/jahil/


> Out of curiosity, what is ping based routing?
>
> 02 PM, jack daniels <jckdaniels12 at gmail.com> wrote:
>
>> Hi ,
>>
>> I can run any protocol , cant run tunnel as other side is client who
>> cant
>> make changes
>>
>>
>>
>>
>> On Sun, Dec 13, 2009 at 10:23 PM, Vincent C Jones <
>> v.jones at networkingunlimited.com> wrote:
>>
>> >  On Sun, 2009-12-13 at 21:06 +0530, jack daniels wrote:
>> > > I have a scenario -
>> > >
>> > > CE -------ISP1
>> > > |
>> > > |
>> > > |
>> > > ISP2
>> > >
>> > > users behind CE connect to remote application ,
>> > > Now issue is if ISP1 LINK or ISP1 goes down I have times less than 4
>> sec
>> > > for application to go via other link so that users are not imacted.
>> > > So can there be any solution for traffic to converge before 2
>> request
>> > > timeouts , so that my application users are not impacted.
>> >
>> > There are a wide variety of solutions, but whether or not they will
>> work
>> > for you depends very much on both the specifics of the application and
>> > how you connect to your ISPs. Classic dual-homed BGP is not one of the
>> > solutions given your timeout requirements. "Ping based routing" may do
>> > the job if your user application can tolerate changing public IP
>> > addresses. If you have a presence at both ends of the public internet
>> > connection, you could also look at tunnel based solutions.
>> >
>> > --
>> > Vincent C. Jones
>> > Networking Unlimited, Inc.
>> > Phone: +1 201 568-7810
>> > V.Jones at NetworkingUnlimited.com
>> >
>> >
>> >
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