Re: Stop the hello in OSPF

Hi Scott

not sure you are correct about this as he is talking about Ethernet a
broadcast segment unless it is a bug the RFC 1793 strictly indicate
that hello will not be reduced!

Demand circuits and regular network segments (e.g., leased lines) are
   allowed to be combined in any manner. In other words, there are no
   topological restrictions on the demand circuit support. However,
   while any OSPF network segment can be defined as a demand circuit,
   only point-to-point networks receive the full benefit. When broadcast
   and NBMA networks are declared demand circuits, routing update
   traffic is reduced but the periodic sending of Hellos is not, which
   in effect still requires that the data-link connections remain
   constantly open.
...
...
 3.2. Sending and Receiving OSPF Hellos

      The following sections describe the required modifications to OSPF
      Hello Packet processing on point-to-point demand circuits.

      For OSPF broadcast and NBMA networks that have been configured as
      demand circuits, there is no change to the sending and receiving
      of Hellos, nor are there any changes to the Neighbor State
      Machine. This is because the proper operation of the Designated
      Router election algorithm requires periodic exchange of Hello
      Packets.

if you where talking on p2p circuit I would agree with Scott totally.

On Sun, Jun 28, 2009 at 4:09 PM, Scott Morris<smorris_at_ine.com> wrote:
> Use the demand-circuit.
>
> Hellos are suppressed although "show ip ospf neighbor" will still show
> the neighbor there. We used to use this in dial-on-demand routing
> where the neighbor would still show up even though the dial circuit had
> actually gone away.
>
> HTH,
>
>
>
>
> *Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,
>
> JNCIE-M #153, JNCIS-ER, CISSP, et al.
>
> JNCI-M, JNCI-ER
>
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> ismail mohamed wrote:
>> Hi,
>>
>> R1--R2 connected with OSPF process.
>>
>> Now i want to stop the hellow between this but neighbor should not distrip
>>
>> is there any way we can only stop the hello and have a neight between them..
>>
>>
>> I tought using passive inter but neighbr alos deleted.
>>
>> Thansk in advance.
>>
>>
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