[alcatel-nsp] bgp min-route-advertisement

[Thedin Guruge]

Hi,

wrt network convergence times, wouldn't that be heavily dependent on your
IGP's convergence?specially when bgp-vpns are used. So having the IGP well
tuned for optimisation would will help achieve better failover times.

Cheers,

Thedin

On Tue, Jun 7, 2011 at 6:18 PM, Alexander Saveliev
<saveliev at mostelekom.net>wrote:

>
> Hello,
>
> This is true, especially for address-family with full view.
> But also true is that in bgp/mpls vpns often there are no many peering
> points and no full view of internet routes. 30sec restriction significantly
> reduces convergence time in this networks, especially in redundant
> topologies.
> So it is common practice, from "another vendor" for example, to set default
> time for eBGP sessions in GRT equal to 30 secs, but to set it equal to zero
> secs for iBGP and for PE-CE sessions in VPNs.
>
> Ok. My main question is- may be somebody know something important about ALU
> routers that can have a serious negative impact when setting advertisement
> equal to 1 sec?
>
> Thanks,
> Alexander
>
> 07.06.2011 01:03, Thedin Guruge пишет:
>
> Hi Alexander,
>
>  As depicted by the config itself, it determines the interval at which
> routes are advertised to peers, having it at 1 sec will set BGP to be more
> chatty..which isn't a common desire.
>
>  Regards,
>
>  Thedin
>
> On Mon, Jun 6, 2011 at 6:26 PM, Alexander Saveliev <
> saveliev at mostelekom.net> wrote:
>
>> Hello,
>>
>> Does anybody know what's the point for choosing
>> min-route-advertisement=30sec in all BGP processes by default? Why not 1sec
>> for example?
>>
>> Thanks,
>> Alexander
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>
>
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