On 21/Nov/19 19:59, Saku Ytti wrote:
>
> As there are best path algorithms which consider route age, BGP reset
> impact may be indefinite.
A practical problem we've seen with Cisco's BGP-SD implementation is
that 0/0 and ::/0, when learned via BGP, are installed last.
So consider a situation
”Someday we’ll find it: the stable connection, my providers, my routers and
me.“ - Kermit the Frog
https://networkphil.com/
Couldn’t resist- having read this and then almost immediately seeing a link to
the above “Rainbow Connection” remix via a LinkedIn post. Happy Friday!
Cheers,
Yoni
> O
On Fri, Nov 22, 2019 at 12:40 PM Christopher Morrow
wrote:
>
> On Fri, Nov 22, 2019 at 12:32 PM Baldur Norddahl
> wrote:
> >
> >
> >
> > On Fri, Nov 22, 2019 at 1:21 AM Christopher Morrow
> > wrote:
> >>
> >> On Fri, Nov 22, 2019 at 2:01 AM Saku Ytti wrote:
> >> >
> >> > On Thu, 21 Nov 2019 at
On Fri, Nov 22, 2019 at 12:32 PM Baldur Norddahl
wrote:
>
>
>
> On Fri, Nov 22, 2019 at 1:21 AM Christopher Morrow
> wrote:
>>
>> On Fri, Nov 22, 2019 at 2:01 AM Saku Ytti wrote:
>> >
>> > On Thu, 21 Nov 2019 at 19:44, Baldur Norddahl
>> > wrote:
>> >
>> > > A BGP reset can cause routing trou
On Fri, Nov 22, 2019 at 1:21 AM Christopher Morrow
wrote:
> On Fri, Nov 22, 2019 at 2:01 AM Saku Ytti wrote:
> >
> > On Thu, 21 Nov 2019 at 19:44, Baldur Norddahl
> wrote:
> >
> > > A BGP reset can cause routing trouble for as much as 15 minutes. Since
> you have two sessions that mitigates the
On Fri, Nov 22, 2019 at 2:01 AM Saku Ytti wrote:
>
> On Thu, 21 Nov 2019 at 19:44, Baldur Norddahl
> wrote:
>
> > A BGP reset can cause routing trouble for as much as 15 minutes. Since you
> > have two sessions that mitigates the problem somewhat. But nevertheless
> > this will not be acceptab
On Fri, Nov 22, 2019 at 12:54 AM Tom Beecher wrote:
>
> I agree that this sounds like an automated process in some way.
>
> I would suspect that either a vendor code update changed something such that
> a given command that would not cause session reset now does, or they changed
> their automati
On Thu, 21 Nov 2019 at 19:44, Baldur Norddahl wrote:
> A BGP reset can cause routing trouble for as much as 15 minutes. Since you
> have two sessions that mitigates the problem somewhat. But nevertheless this
> will not be acceptable.
As there are best path algorithms which consider route age,
A BGP reset can cause routing trouble for as much as 15 minutes. Since you
have two sessions that mitigates the problem somewhat. But nevertheless
this will not be acceptable.
Regards
Baldur
tor. 21. nov. 2019 10.47 skrev Christopher Morrow :
> Howdy!
> A question of interest to me, currently,
I agree that this sounds like an automated process in some way.
I would suspect that either a vendor code update changed something such
that a given command that would not cause session reset now does, or they
changed their automation to include a command that would cause a reset
without realizing
No. There should be no reason to bounce the session. Do you have soft updates
turn on?
-mel via cell
> On Nov 21, 2019, at 1:46 AM, Christopher Morrow
> wrote:
>
> Howdy!
> A question of interest to me, currently, is whether it's normal for
> providers to cause BGP flaps to their customers n
On Thu, Nov 21, 2019 at 4:48 AM Jared Mauch wrote:
>
>
>
> > On Nov 21, 2019, at 4:45 AM, Christopher Morrow
> > wrote:
> >
> > Howdy!
> > A question of interest to me, currently, is whether it's normal for
> > providers to cause BGP flaps to their customers nightly... This seems,
> > in my case
> On Nov 21, 2019, at 4:45 AM, Christopher Morrow
> wrote:
>
> Howdy!
> A question of interest to me, currently, is whether it's normal for
> providers to cause BGP flaps to their customers nightly... This seems,
> in my case, to be the provider PROBABLY updating prefix-filters on my
> sessio
Howdy!
A question of interest to me, currently, is whether it's normal for
providers to cause BGP flaps to their customers nightly... This seems,
in my case, to be the provider PROBABLY updating prefix-filters on my
session(s).
Particularly AS56554 is currently getting v4/v6 transit from 2
provide
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