From: Ben Hickey (bhickey@xxxxxxxxx)
Date: Wed Nov 14 2001 - 09:05:40 GMT-3
Software I believe, I have 2500 and 2600s with 12.0.(9) and all support
DC (DC bit set).
Don't know in that case have you tried being really nice to your
routers? :)
Ben
-----Original Message-----
From: Neil Garcia Legada [mailto:nlegs@visto.com]
Sent: 13 November 2001 17:55
To: curtiscall@usa.net; Ben Hickey
Cc: ccielab@groupstudy.com
Subject: RE: DCbits on OSPF demand circuits
Hi Guys,
Appreciate your responses. Thanks a lot.
I've verified all the entries on that router that says some DCbitless
entries, seems like all of them has DCbit set, quite strange. My routers
are running 12.1(9)/12.0(20) versions on 2500/2600/3600 series. Is it a
hardware or software thing that dictates DCbit capabilities ???
Regards,
Neil
-----Original Message-----
From: Ben Hickey bhickey@cisco.com
Sent: Mon, 12 Nov 2001 19:02:41 +0100
To: nlegs@visto.com, ccielab@groupstudy.com
Subject: RE: DCbits on OSPF demand circuits
Neil - I'll try here,
I had this on my set up last week and it was caused by the router having
LSAs in the db from routers with old IOS that did not support DC. The
other router didn't have the LSAs in the db for a number of reasons.
Ensure all routers generating LSAs in your routing domain support DC and
clear ip ospf process on all routers to get rid of the bad ones when
your sure they all support it.
You can see the DC bit by going through each LSA in the db. sh ip ospf
da [type].
Good luck.
Ben
-----Original Message-----
From: Neil Garcia Legada [mailto:nlegs@visto.com]
Sent: 12 November 2001 11:05
To: ccielab@groupstudy.com
Subject: DCbits on OSPF demand circuits
Hi Group,
My demand circuit is not working properly.
One end of my OSPF demand circuit has this:
Configured as demand circuit.
Run as demand circuit.
DoNotAge LSA allowed.
and on the other end:
Run as demand circuit.
DoNotAge LSA not allowed (Number of DCbitless LSA is -3).
Also, show ip ospf database on the first one doesn't show any DNA
entries the other does have.
Is this a normal state for a demand circuit ??? Why is it DNA is allowed
on one side and not on the other ??? What does 'DCbits/less' means and
why on some instances its a none zero ??? What causes them ???
Can't find any good explanations from CCO. Maybe you guys can help me
out. Appreciate it very much.
Thanks
Neil
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