Re: FR mapping of IPv6 address and broadcast keyword

Basically enable broadcast once per protocol, per DLCI. That's it...

Sent from my iPhone

On Apr 18, 2012, at 7:54 PM, Marko Milivojevic <markom_at_ipexpert.com> wrote:

> No, it doesn't :-). Only DLCI requires it and it doesn't matter on
> which of the lines you put it. It's all the same.
>
> --
> Marko Milivojevic - CCIE #18427 (SP R&S)
> Senior CCIE Instructor - IPexpert
>
> On Wed, Apr 18, 2012 at 16:42, marc edwards <renorider_at_gmail.com> wrote:
>> Yeah after re reading. What Marko and Joe siad for tehcnicals. My advice is
>> to only put on link local as this is only one that requires it.
>>
>> Regards,
>>
>> Marc
>>
>>
>> On Wed, Apr 18, 2012 at 12:44 PM, marc edwards <renorider_at_gmail.com> wrote:
>>>
>>> Just like in IPv4 routing, IPv6 IGPs send neighbor discovery with ttl=1
>>> over link local. Broadcast is required on FE80 (link local mapping)
>>> forB adjacencyB to form. Exceptions to the rule are
>>> whenB uni-castB hello's/updates are being sent with neighbor statements...
>>>
>>> Broadcast isn't required for global address. There needs to be a
>>> corresponding mapping for any IPv6 address to a DLCI. IPv6 does not perform
>>> inverse arp. It isn't supported.
>>>
>>> HTH
>>>
>>> Marc
>>>
>>>
>>> On Wed, Apr 18, 2012 at 11:47 AM, Joe Astorino <joeastorino1982_at_gmail.com>
>>> wrote:
>>>>
>>>> What Marko said...the broadcast keyword on the map just says "If I have
>>>> broadcast multicast traffic, send it out this DLCI". B The L3 address you
>>>> have in the map makes no difference in that case.
>>>>
>>>> On Wed, Apr 18, 2012 at 1:22 PM, Marko Milivojevic
>>>> <markom_at_ipexpert.com>wrote:
>>>>
>>>>> It doesn't matter where you put it. On frame maps, the "broadcast"
>>>>> keyword is a parameter to the DLCI number and the protocol, not the
>>>>> address.
>>>>>
>>>>> I highly recommend *not* putting broadcast on multiple instances of
>>>>> the same DLCI for the same protocol, as that will multiply the traffic
>>>>> generated as the result of pseudobroadcast replication.
>>>>>
>>>>> --
>>>>> Marko Milivojevic - CCIE #18427 (SP R&S)
>>>>> Senior CCIE Instructor - IPexpert
>>>>>
>>>>> On Wed, Apr 18, 2012 at 03:54, Ivan Hrvatska <ivanzghr_at_gmail.com>
>>>>> wrote:
>>>>>> Hi,
>>>>>> just one short question about FR mapping and IPV6 addresses. Since
>>>>>> OSPFv3, EIGRPv6 and RIPng uses link-local FE80:: addresses for
>>>>>> protocol communication and next-hop, what seems to be correct:
>>>>>> a) putting broadcast keyword on static mapping of link-local
>>>>>> b) putting broadcast keyword on static mapping of "actual" IPv6
>>>>>> address
>>>>>>
>>>>>> In Cisco literature they put it only on link-local mapping. I
>>>>>> followed
>>>>>> that and routing protocols work fine. In some vendors WBs broadcast
>>>>>> keyword is put on mapping with non-link-local address and on some
>>>>>> labs
>>>>>> on both mapping.
>>>>>>
>>>>>> So, what would be the appropriate way to do it on lab?
>>>>>>
>>>>>>
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>>>>>>
>>>>>>
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>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>>
>>>> Joe Astorino
>>>> CCIE #24347
>>>> http://astorinonetworks.com
>>>>
>>>> "He not busy being born is busy dying" - Dylan
>>>>
>>>>
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>>>>
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>
>
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Received on Wed Apr 18 2012 - 20:15:23 ART