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 [email protected]
fax: +49-89-35655025 [email protected]
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