[quagga-dev 7298] Re: BGP_INFO_HISTORY question

Ruichuan Chen rchen at mpi-sws.org
Wed Oct 14 15:20:58 BST 2009


Hi,

Many thanks for the reply.

 I know we can identify the newly received updates in bgp_update_main
(), but is it still possible in bgp_process_main ()? Thanks.

Best regards,
Ruichuan



On Wed, Oct 14, 2009 at 7:11 AM, Balaji G <balajig81 at gmail.com> wrote:
> Hi
>
> You cannot use BGP_INFO_HISTORY because when you enable bgp dampening and
> when the interval gets timed out the route becomes history.
>
> To check whether its a newly received route you could iterate the rib and
> find out whether this route is already installed if not install it. you need
> to check whether the route information is same or not.
>
> I believe this logic is already in place in bgp_update_main. Kindly check
>
> Thanks,
> Cheers,
>  - Balaji
>
>
> On Tue, Oct 13, 2009 at 11:16 PM, Ruichuan Chen <rchen at mpi-sws.org> wrote:
>>
>> Dear developers,
>>
>> We have been implementing a BGP-enhanced protocol for research purpose.
>>
>> I am writing to inquire whether we could use the command "! CHECK_FLAG
>> (ri->flags, BGP_INFO_HISTORY)" in function "bgp_best_selection" to
>> identify whether the bgp_info ri is newly received? And, what is the
>> exact meaning of the BGP_INFO_HISTORY flag?
>>
>> Thanks in advance.
>>
>> Best regards,
>> Ruichuan
>> _______________________________________________
>> Quagga-dev mailing list
>> Quagga-dev at lists.quagga.net
>> http://lists.quagga.net/mailman/listinfo/quagga-dev
>
>



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