From: Dave Gahm (gahm@xxxxxxx)
Date: Fri Mar 03 2000 - 01:56:14 GMT-3
Joel,
With demand circuit configured the ISDN line will come up for LSA updates,
but not for hellos. Do a "show ip ospf interface briX/X" which will show
that hellos are suppressed (towards the bottom). I would post a copy, but
have moved on to a BGP scenario.
Regards, Dave
-----Original Message-----
From: Joel W. Ekis <jekis@cisco.com>
To: ccielab@groupstudy.com <ccielab@groupstudy.com>
Date: Thursday, March 02, 2000 11:01 AM
Subject: Re: IP OSPF Demand Circuit
>I'm unwilling to describe the exact scenario (for obvious reasons), but
demand-circuit doesn't always stop OSPF from activating the ISDN line. Just
pointing out that you need to know how to turn it off, if necessary.
>
>Joel
>
>At 06:56 AM 3/2/2000 -0900, Dave Gahm wrote:
>>Joel,
>>The ospf demand circuit also suppresses hellos, at least on non-broadcast
>>media. I have it set up in my testbed right now on a BRI and it works
fine.
>>I am running 11.3 code. Perhaps older code is the problem?
>>
>>Regards, Dave
>>
>>-----Original Message-----
>>From: Joel W. Ekis <jekis@cisco.com>
>>To: Rob Barton <rob.barton@telus.com>; ccielab@groupstudy.com
>><ccielab@groupstudy.com>
>>Date: Thursday, March 02, 2000 5:32 AM
>>Subject: Re: IP OSPF Demand Circuit
>>
>>
>>>The demand-circuit only prevents the LSA's from aging. It does not stop
>>the hello's. You need to modify your dialer-list to deny ospf.
>>>
>>>dialer-list 1 protocol ip list 101
>>>access-list 101 deny ospf any any
>>>access-list 101 permit ip any any
>>>
>>>Joel
>>>
>>>At 08:43 AM 3/1/2000 -0800, Rob Barton wrote:
>>>>Hi all, I am new to this group and am already impressed with the high
>>>>level of discussion that has been going on. I am scheduled to write the
>>>>exam in San Jose on June 29,30
>>>>
>>>>I have an OSPF config problem maybe someone can help me with. OSPF is
>>>>configured across my BRI line (not as a backup interface, but just with
>>>>a higher cost than the serial interface). I have used the ip ospf
>>>>demand-circuit command at both sides of the ISDN line, but the OSPF
>>>>multicast traffic is still bringing up the line constantly. Any ideas
>>>>of why this would be?
>>>>
>>>>
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 08:23:03 GMT-3