From: Olugbenga Adanlawo (gbengaadan@hotmail.com)
Date: Tue Jan 15 2008 - 20:19:18 ARST
Dear GS,
Please i need a clarification on the below ASAP.
Does ip summary-address rip interface command suppress the specific routes or
i need to suppress them manually?
Regards
--------------------------------------------------
From: "Cielieska Nathan" <ncielieska@gmail.com>
Sent: Monday, January 14, 2008 9:01 PM
To: "Cisco certification" <ccielab@groupstudy.com>
Subject: flash-update-threshold??
> All,
>
> I have been working through the Command Reference for RIP today and
> ran into this command. The way i'm reading it (disclaimer) is that
> when a router running rip v2 unequivocally knows that an advertised
> route is down... or has been added, it shoots a flash update across
> to its neighbor notifying them as such thus allowing for faster
> update time. Thats how i understand it to work.
>
> Now the flash-update-threshold has a second value that compares
> itself with the incoming regular 30 second update. You can suppress
> an outgoing flash update by configuring this command with a seconds
> value that will match that 30 second timer.
>
> If the timer is greater than the threshold value: flash update is
> sent. If the update packet is within the timer,flash update is
> suppressed.
>
> For instance:
>
> On the receiving end of a route change or event
>
> router rip
> flash-update-threshold 20
>
> When a flash-update came into the router on a particular interface,
> the value in the show ip protocols would be referenced.. if its above
> 20 the flash update is sent, if its under 20.. its suppressed.
>
> Is this correct? Cant find a ton of documentation on the command. I
> labbed it up and if i remove/add a network command from R1 it shoots
> the flash update to R2. R2 flash-update-threshold 30 configured which
> would allow all flash updates to be suppressed. Yet in "debug ip rip"
> i still see flash updates being sent out my other interfaces on R2.
>
> Any help would be great.
>
> Regards,
> Nate
>
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