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Conference turris::digital_unix

Title:DIGITAL UNIX(FORMERLY KNOWN AS DEC OSF/1)
Notice:Welcome to the Digital UNIX Conference
Moderator:SMURF::DENHAM
Created:Thu Mar 16 1995
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:10068
Total number of notes:35879

9549.0. "No timeout of redirect route entries?" by NNTPD::"[email protected]" (Feynman Lo) Fri Apr 18 1997 10:31

Is it true that,under Digital Unix 3.2x and 4.0x,
the route entries created by a redirect will not timeout?

Then, does it mean that when a reverse failure occurs, or
when a better path come up which is not that previously learned 
redirect route, then this old redirect route will not be replaced
by a new redirect?

Does it result what is shown up as increasing counter
value of 'bad routing redirects'  in 'netstat -rs' ?

If it is true, a bug or design issue?
Any suggestion or hints?

-feynman
[Posted by WWW Notes gateway]
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9549.1no timeoutSMURF::DUSTINFri Apr 18 1997 14:5512
    Yes, it is true, redirects do not time out, they stay in the
    routing table forever.
    
    I haven't tried redirecting a redirected route, so I'm not sure
    if they pile up, or if they get replaced when they are "updated".
    I would hope they are updated.
    
    Do you have evidence of multiple redirects piling up and becoming
    replicated?
    
    John
    
9549.2may need to do some experiment...NNTPD::"[email protected]"Feynman loSat Apr 19 1997 07:089
Thanks for the reply.

I think the situation may even worse such that
Digital Unix simply ignores the new redirects and
stick to the old ones.

- feynman

[Posted by WWW Notes gateway]
9549.3alphy.lkg.dec.com::thomasThe Code WarriorSat Apr 19 1997 09:393
Digital UNIX will obey the new redirects (That's how the M bit gets set
in the netstat -r display) but only if they come from the gateway that
you were redirected to.