[j-nsp] vrrp advertise and hold time

[Taqdir Singh]

hi Felix,

here is the link where its mentioned hold time by default is 0

http://www.juniper.net/techpubs/software/junos/junos76/swconfig76-network-interfaces/html/interfaces-summary148.html

On Sun, Mar 28, 2010 at 1:45 PM, Felix Schueren <
felix.schueren at hosteurope.de> wrote:

> Taqdir Singh wrote:
>
>> Hi all,
>>
>>       I have read that in juniper vrrp has advertise time of 1 sec and
>> holdtime of 0 sec by default ?
>>
> generally, VRRP waits for (3 * advertise time) (as per the RFC). I never
> checked if the Skew_Time (lower priority makes you wait longer) is
> implemented in Juniper, but they definitively wait for 3*advertise time.
> This is true for normal as well as the fast-interval sub-second stuff.
>
>
>
>> So could you confirm ........is advertise-time = hello time in cisco ?
>>
> supposedly. I've never used vrrp on cisco.
>
>
>
>> if this is so... and if we are taking hold time of 0 sec... in that case
>> backup router will never wait for even one sec and there will always be
>> state change in backup and master ?
>>
>>  If there was a 0 hold time, yes. But at least on my routers, I have never
> seen a hold-time setting for vrrp.
> In Juniper, hold-time normally is a property of the physical interface that
> delays a "link down" or "link up" notification to the rest of router for a
> short time (and will not send any at all if the link is restored to it's
> previous state quickly enough, so if you have "hold-time up 2000ms" and plug
> in a link, then unplug it a second later, it will never fire the "link up"
> event).
>
> Where did you get the "holdtime 0" from?
>
> Kind regards,
>
> Felix
>
> --
> Felix Schüren
> Head of Network
>
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TAQDIR SINGH
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