Route holdowns: los pobres paquetos: that's just the beauty and purpose of routing protocols to propagate the info so that los pobres paquetos don't clog the pipe with the goal of being dropped. To hold routes eternally down is not good: what if the customer disconnects that network? I don't want to be notified by all leaf networks when they will hickup or disconnect for good. Mike On Sun, 23 Apr 1995, Randy Bush wrote:
Don't know what other folk are seeing, or if y'all even look. But a significant number of leaf customer sites 'round these parts seem to be pseudo-random route generators. I watched a small POP, less than 100 customers, for about six weeks. I would never had guessed that DEC, IBM, MIT, and dozens of surprising Bs and Cs were in rural Southern Oregon. I'm sure that the POP's peer ASs would have been very impressed if we had redistributed those routes to external BGP sessions.
And we occasionally get some exciting announcements from overseas links.
To move along an other tangent... What is the general wisdom on putting pull-ups on route annoucements to deter route flap? Vadim kindly gave me a static Null 250 hack to keep announcement up even if the source of the route drops it. Hence, you won't get the !H until you get to our border. Los pobre packitos will travel all the way and then get whacked. Seems to subvert one interpretation one could read into the intent of BGP.
randy
-------------------------------------------------------------------------------- Michael F. Nittmann nittmann@wis.com Network Architect nittmann@b3.com B3 Corporation, Marshfield, WI (CIX Member) (715) 387 1700 xt. 158 US Cyber (SM), Washington DC (715) 573 2448 (715) 831 7922 --------------------------------------------------------------------------------