[c-nsp] OSPF fast convergence on Sup32/SXI

[Clue Store]

Ive had a few customers on a small scale routers perfectly, I believe
the dead time in Cisco default is 4 times the hello. I have all of them set
of 3 sec Hello packets and a 30 second heal time and zero route
instabitliey. But I have zero experience with the sup32/6509 kit.

This has been done on 2600/2800 3700/3800 routers with no issues.
Clue

On Sat, Aug 29, 2009 at 9:45 AM, Gert Doering <gert at greenie.muc.de> wrote:

> Hi,
>
> for a new project, I have been tasked to build a network that does
> IGP fast convergence "as fast as possible!!!" (with 5 exclamation marks).
>
> Due to other reasons (... of course this needs to be FAST and cost
> NOTHING...), the routers will be 6504+Sup32s, planned IOS is SXH3a or
> SXI2.
>
> BFD won't be possible, as routing will be done on SVIs (thanks, Cisco)
>
> [*maybe* I can do this on port-channel dot1q subinterfaces, but I'm not
> yet sure how this will work out - can MUX-UNI be used to mix routed
> subinterfaces and switched VLANs?  I've only used it to mix MPLS subfs
> and switched VLANs].
>
> Now I'm looking for experience and recommendations about tweaking OSPF
> - how far have you (successfully) reduced OSPF hello timers?   Any other
> success or horror stories about IGP fast convergence on Sup32?
>
>
> ... and yes, I'm aware that I won't be able to do "sub-500ms" on this
> platform.  I'm not aiming for this :-) - something like "< 3s" would
> be perfect, "< 10s" would make $them grumble, but eventually accept it...
>
> gert
> --
> USENET is *not* the non-clickable part of WWW!
>                                                           //
> www.muc.de/~gert/
> Gert Doering - Munich, Germany
> gert at greenie.muc.de
> fax: +49-89-35655025
> gert at net.informatik.tu-muenchen.de
>
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