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Juniper MX Physical Interface Damping
Hello,

I'm currently looking at physical interface damping on Juniper MX:

https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/interfaces-damping-longer-physical-interface-transitions.html


Fun Fact: Nowhere on this site is it mentioned that the penalty added
per interface down event is 1000.

Currently testing this:

set interfaces xe-5/2/1 damping half-life 30
set interfaces xe-5/2/1 damping max-suppress 20000
set interfaces xe-5/2/1 damping reuse 1
set interfaces xe-5/2/1 damping suppress 500
set interfaces xe-5/2/1 damping enable

So this seems to be working but I'm basically missing two things:

1) Where can I see the *current* penalty on the interface? "show
interface extensive" only lists the configured parameters and the
state (suppressed/unsuppressed) of the interface:

Damping : half-life: 30 sec, max-suppress: 20000 sec, reuse: 1, suppress: 500, state: suppressed

2) Is there a way to manually clear the interface / reset the penalty
so that it comes up immediately?

Has anyone used this and can answer these? Is this even possible? Any
other experience you want to share regarding this feature?

Sebastian

--
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'Are you Death?' ... IT'S THE SCYTHE, ISN'T IT? PEOPLE ALWAYS NOTICE THE SCYTHE.
-- Terry Pratchett, The Fifth Elephant
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Re: Juniper MX Physical Interface Damping [ In reply to ]
> On 20/01/2020, at 10:33 PM, Sebastian Wiesinger <sebastian@karotte.org> wrote:
>
> Hello,
>
> I'm currently looking at physical interface damping on Juniper MX:
>
> https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/interfaces-damping-longer-physical-interface-transitions.html
>
>
> Fun Fact: Nowhere on this site is it mentioned that the penalty added
> per interface down event is 1000.

https://www.juniper.net/documentation/en_US/junos/topics/concept/physical-interface-damping.html <https://www.juniper.net/documentation/en_US/junos/topics/concept/physical-interface-damping.html>

About half way down, in the coloured box:
- Penalty added on every interface flap is 1000.

Not sure about your other questions though sorry! Perhaps disable/undisable works?

--
Nathan Ward

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Re: Juniper MX Physical Interface Damping [ In reply to ]
* Nathan Ward <juniper-nsp@daork.net> [2020-01-20 10:40]:
>
> > On 20/01/2020, at 10:33 PM, Sebastian Wiesinger <sebastian@karotte.org> wrote:
> >
> > Hello,
> >
> > I'm currently looking at physical interface damping on Juniper MX:
> >
> > https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/interfaces-damping-longer-physical-interface-transitions.html
> >
> >
> > Fun Fact: Nowhere on this site is it mentioned that the penalty added
> > per interface down event is 1000.
>
> https://www.juniper.net/documentation/en_US/junos/topics/concept/physical-interface-damping.html <https://www.juniper.net/documentation/en_US/junos/topics/concept/physical-interface-damping.html>
>
> About half way down, in the coloured box:
> - Penalty added on every interface flap is 1000.

Yeah I know that it is on *that* site, but not on the one I was
quoting which specifically is about this feature. :)

Regards

Sebastian

--
GPG Key: 0x58A2D94A93A0B9CE (F4F6 B1A3 866B 26E9 450A 9D82 58A2 D94A 93A0 B9CE)
'Are you Death?' ... IT'S THE SCYTHE, ISN'T IT? PEOPLE ALWAYS NOTICE THE SCYTHE.
-- Terry Pratchett, The Fifth Elephant
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