[j-nsp] BGP minimum hold-time

[kura at iij.ad.jp]

Hello Mr. Clarke,

Sorry for my late response.
I have confirmed in our lab environment that "minimum-hold-time" works
as expected.
Thank you very much for your information.

-- 
Tomohiko Kurahashi <kura at iij.ad.jp>


From: sean at clarke-3.demon.nl
Date: Fri May 19 2006 22:52:45 JST
>
> Hi Kura-san
> 
> The hold-time of less than 20 seconds is unsupported because it does
> not scale very well .. many unforeseen issues were noticed.
> 
> However if you still need it down to 6 seconds, you can do the
> following
> 
> set protocols bgp minimum-hold-time 6  <- hidden knob in 7.6
> set protocols bgp hold-time 6
> 
> Really though, you have to understand your network well. If you do,
> good luck with it :-)  . It must be noted - this configuration is no
> longer supported with JTAC - but it's still possible hence the knob is
> hidden.
> 
> Cheers
> Sean
> --
> 
> Not so long ago you wrote : 
> kiaj> Hello,
> 
> kiaj> Since JUNOS7.6R1 the BGP minimum hold time has been changed from 6 sec.
> kiaj> to 20 sec.
> 
> kiaj>  JUNOS7.6R1 Release Note:
> kiaj>    Changes in Default Behavior and Syntax
> kiaj>      The BGP allowed hold time range is from 20 through 65535 seconds.
> kiaj>      Previously, the range was from 6 through 65535 seconds. [Routing]
> 
> kiaj> Does anyone know the ground of this change? Why is the minimum 20 sec.?
> kiaj> The reason seems to be well-known, but I could not find any documents.
> 
> kiaj> Best regards,