From: Lance (lance@xxxxxxxxxxxxx)
Date: Fri Jun 07 2002 - 17:15:36 GMT-3
Andy,
I have not tried this on my lab yet but...
If you read your post you mention that the hold time must be LESS that half
the hello interval before it will be changed. If the default hold time is
15 seconds and you set you new hello time to 30 seconds the hold time is
still not LESS than half your hello time, hence it will not change. What
happens if you set the hello time to 60 seconds, of which half is 30 seconds
which is more than double the 15 second default hold time. Let me know how
it turns out.
----- Original Message -----
From: <andypilcher2@earthlink.net>
To: <ccielab@groupstudy.com>
Sent: Wednesday, May 22, 2002 11:10 AM
Subject: IPX EIGRP hello-interval/hold-time
> Gang,
>
> From CCO, http://www.cisco.com/warp/public/473/57.html:
>
> "ipx hello-interval eigrp <as-number> <value> : Configures the
hello-interval in seconds on the interface for the IPX-EIGRP routing process
designated by. The default value is five seconds. This value may set the
holding time advertised in hello packets. The holding time is three times
the hello-interval. If the current value for the holding time is less than
two times the hello-interval, the holding time will be reset. The default
holding time is 15 seconds."
>
> Okay, if I understand this statement, I can configure the hello-interval
and the hold-time will automatically adjust (providing the old value is less
than two times the new hell-interval)? I've tried this now on four separate
sets of infrastructure, mostly consisting of various 2500 series routers
over ethernet segments. The standard hello and hold times are 5 sec and 15
sec, respectively. If I use the command "ipx hello-interval eigrp 1 30" on
both EIGRP neighbors on the segment, the hold-time does NOT adjust to 90
sec. It stays at 15 sec (sh ipx eigrp neigh), and what happens is that the
neighbors are adjacent for 15 sec, hold-time kicks in and drops the
adjacency, then 15 sec later anothe hello packet is seen, so the adjacency
re-forms. So instead of the hold-time automatically adjusting, you get this
up-down neighborship thing going. I've tried resetting interfaces,
restarting routers, same results.
>
> Am I misinterpreting the above statement from Cisco? I'm using code
versions 12.1(14) on one infrastructure and 12.1(5) on another. Can't
remember the code versions on other sets of infrastructure.
>
> Thanks in advance for the comments.
>
> Andy
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