From: Alexei Monastyrnyi (alexeim@orcsoftware.com)
Date: Thu Nov 02 2006 - 10:59:08 ART
that's it!
the original thread was regarding "p2mp non-broadcast" network type...
and regarding this there was a note from Joe Chang
Joe Chang wrote:
> BTW, I think p2mp nonbroadcast is the method by which to weight the
> individual links, by specifying the cost on the neighbor statements.
>
which was checked and found not 100% correct.... :-)
Ivan wrote:
> priority keyword used in DR-BDR network to increase or decrease probability DR
> selection. On R1 You use p2mp. In this network DR/BDR-selection is not
> required. Set ospf network type to non-broadcast and all will good.
>
> On Wednesday 01 November 2006 23:57, Alexei Monastyrnyi wrote:
>
>> It doesn't really help, Ivan...
>>
>> Same OSPF message without broadcast for FR maps.
>>
>> Ivan wrote:
>>
>>> remove "broadcast" keyword from mapping frame-relay
>>>
>>> On Wednesday 01 November 2006 19:23, Alexei Monastyrnyi wrote:
>>>
>>>> Has it been checked?
>>>>
>>>> After setting FR interface of HUB router in p2mp non-broadcast and
>>>> trying to apply priority per SPOKE neighbor I got
>>>>
>>>> R1(config-router)#nei 1.1.125.5 priority 5
>>>> OSPF: Poll and priority option are allowed only for NBMA network
>>>>
>>>> R1(config-router)#do sh run in ser 0/0 | in inter|ip|ospf|frame
>>>> interface Serial0/0
>>>> description ---> DLCI 102 103 104 105 106 <---
>>>> ip address 1.1.125.1 255.255.255.0
>>>> encapsulation frame-relay
>>>> ip ospf network point-to-multipoint non-broadcast
>>>> ip ospf priority 255
>>>> frame-relay map ip 1.1.125.5 105 broadcast
>>>> frame-relay map ip 1.1.125.1 105
>>>> frame-relay map ip 1.1.125.2 102 broadcast
>>>> no frame-relay inverse-arp
>>>>
>>>> Joe Chang wrote:
>>>>
>>>>> BTW, I think p2mp nonbroadcast is the method by which to weight the
>>>>> individual links, by specifying the cost on the neighbor statements.
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Adhu Ajit" <adhu_ajit@yahoo.com>
>>>>> To: <alexeim@orcsoftware.com>; <ccielab@groupstudy.com>
>>>>> Sent: Tuesday, October 31, 2006 7:41 PM
>>>>> Subject: Re: "point to multipoint non-broadcast" mode
>>>>>
>>>>>
>>>>>> Alexei, point to multipoint does not require neighbor statements.
>>>>>> However,
>>>>>>
>>>>> "point to multipoint non-broadcast" (which is one of the 3 Cisco
>>>>> defines modes) requires neighbor statements. But it does not form
>>>>> DR/BDR relationships, like you have pointed out. That's the reason I'm
>>>>> totally confused.
>>>>>
>>>>>
>>>>>> (This mode and its details are qouted in the Cisco BSCI 2.0 course
>>>>>>
>>>>> material)
>>>>>
>>>>>
>>>>>> Adhu.
>>>>>>
>>>>>>
>>>>>> Alexei Monastyrnyi <alexeim@orcsoftware.com> wrote:
>>>>>> In a nutshell, it gives you no DR-BDR relationships with unicast LSA
>>>>>> flooding etc (since non-broadcast will require to have a neighbor on
>>>>>> one side. Normal p2mp would utilize AllOSPFrouters multicast group for
>>>>>> both hellos and LSA flooding. If I remember right...
>>>>>>
>>>>>> A.
>>>>>>
>>>>>> Adhu Ajit wrote:
>>>>>>
>>>>>>> Folks, I went through different books on this one but I still cant
>>>>>>>
>>>>> understand on when I should use this mode over the other modes such as:
>>>>>
>>>>>>> NBMA (and or)
>>>>>>> Point to Multipoint
>>>>>>>
>>>>>>> Can someone explain ?
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Sai.
>>>>>>>
>>>>>>>
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