Re: FR mapping of IPv6 address and broadcast keyword

From: marc edwards <renorider_at_gmail.com>
Date: Wed, 18 Apr 2012 18:01:20 -0700

Hmmm... I will follow up. Thanks for info.

Marc

On Wednesday, April 18, 2012, Ronnie Angello wrote:

> 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<javascript:;>>
> 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<javascript:;>>
> 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<javascript:;>>
> 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 <javascript:;>>
> >>> 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?
> >>>>>>
> >>>>>>
> >>>>>> Blogs and organic groups at http://www.ccie.net
> >>>>>>
> >>>>>>
> >>>>>>
> _______________________________________________________________________
> >>>>>> Subscription information may be found at:
> >>>>>> http://www.groupstudy.com/list/CCIELab.html
> >>>>>
> >>>>>
> >>>>> Blogs and organic groups at http://www.ccie.net
> >>>>>
> >>>>>
> _______________________________________________________________________
> >>>>> Subscription information may be found at:
> >>>>> http://www.groupstudy.com/list/CCIELab.html
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>
> >>>>
> >>>> --
> >>>> Regards,
> >>>>
> >>>> Joe Astorino
> >>>> CCIE #24347
> >>>> http://astorinonetworks.com
> >>>>
> >>>> "He not busy being born is busy dying" - Dylan
> >>>>
> >>>>
> >>>> Blogs and organic groups at http://www.ccie.net
> >>>>
> >>>>
> _______________________________________________________________________
> >>>> Subscription information may be found at:
> >>>> http://www.groupstudy.com/list/CCIELab.html
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Wed Apr 18 2012 - 18:01:20 ART

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