From: mark.chandra@gmail.com
Date: Mon Oct 06 2008 - 01:26:05 ART
Ping packet should go in and out right? Is ping in multicast just one way trip? How the reply message appear then if this is just one way trip.
Thx hobb for your reply
Sent from my BlackBerry. wireless device from XL GPRS/EDGE/3G network
-----Original Message-----
From: Hobbs <deadheadblues@gmail.com>
Date: Sun, 5 Oct 2008 22:26:45
To: Mark Stephanus Chandra<mark.chandra@gmail.com>
Cc: <ccielab@groupstudy.com>
Subject: Re: Repost : IP NBMA MODE Question
Right, so packets go from R1 or R2 to R3. R3 then forwards them to R5 and
then on to R4.
It is not required that packets go from R1 to R3 to R2 or from R2 to R3 to
R1. If that was the case you would need pim nbma mode on R3.
On Sun, Oct 5, 2008 at 10:20 PM, Mark Stephanus Chandra <
mark.chandra@gmail.com> wrote:
> But Hobbs,
>
>
>
> Vlan 7 is behind R1 and R2 right ?
>
>
>
> That the source of the multicast, we ping from vlan 7 to R4 and R5
> interface which join to IGMP join group command.
>
>
>
> The traffic will traverse incoming from R3 to R1/R2 (which metric IGP is
> better) and back from R1/R2 to R3 interface right ?
>
>
>
> So it gonna come and go from R3 same interface facing to R1 and R2.
>
>
>
>
>
>
>
> Regards
>
>
>
> *Mark Stephanus Chandra
> *IT Consultant
>
>
>
> *From:* Hobbs [mailto:deadheadblues@gmail.com]
> *Sent:* 06 Oktober 2008 11:04
> *To:* mark.chandra@gmail.com
>
> *Cc:* ccielab@groupstudy.com
> *Subject:* Re: Repost : IP NBMA MODE Question
>
>
>
> Nope, doesn't need it. Pim nbma mode would be needed if traffic needed to
> be sent out the same interface it was received on (in sparse-mode), as is
> the case with R5.
>
> On Sun, Oct 5, 2008 at 9:49 PM, <mark.chandra@gmail.com> wrote:
>
> No, its on different serial hobbs.
>
> So, what do you think? It should use ip nbma node or not?
>
> Sent from my BlackBerry(R) wireless device from XL GPRS/EDGE/3G network
> ------------------------------
>
> *From*: Hobbs <deadheadblues@gmail.com>
> *Date*: Sun, 5 Oct 2008 21:42:40 -0600
> *To*: Mark Stephanus Chandra<mark.chandra@gmail.com>
> *CC*: <ccielab@groupstudy.com>
>
>
> *Subject*: Re: Repost : IP NBMA MODE Question
>
> hmm...sorry I should have asked about R3 connection to R5...is this on the
> same serial interface as the connections to R1/R2? If not, then pim nbma
> mode would not be needed
>
> On Sun, Oct 5, 2008 at 6:30 PM, Mark Stephanus Chandra <
> mark.chandra@gmail.com> wrote:
>
> No Hobss,
>
>
>
> R3 using serial Interface , no sub interface and it is a multipoint
> interface.
>
>
>
> Regards
>
>
>
> *Mark Stephanus Chandra
> *IT Consultant
>
>
>
> *From:* Hobbs [mailto:deadheadblues@gmail.com]
> *Sent:* 06 Oktober 2008 7:18
> *To:* Mark Stephanus Chandra
> *Cc:* ccielab@groupstudy.com
> *Subject:* Re: Repost : IP NBMA MODE Question
>
>
>
> Is R3 using separate point-to-point sub-interfaces for connections to R1
> and R2? That would be my first guess.
>
> On Sun, Oct 5, 2008 at 5:59 PM, Mark Stephanus Chandra <
> mark.chandra@gmail.com> wrote:
>
> From: Mark Stephanus Chandra [mailto:mark.chandra@gmail.com]
> Sent: 05 Oktober 2008 13:42
> To: 'ccielab@groupstudy.com'
> Subject: IP NBMA MODE Question
>
>
>
> Dear GS,
>
>
>
> I'm coming on my lab 9 workbook, still confuse with multicast.
>
>
>
> So The question is like this
>
>
>
> Diagram :
>
>
>
>
> http://s481.photobucket.com/albums/rr171/mark_chandra/?action=view¤t=M
> CASTQST.jpg<http://s481.photobucket.com/albums/rr171/mark_chandra/?action=view¤t=MCASTQST.jpg>
>
>
>
>
>
> The IEWB Workbook told to test a multicast group 224.1.1.1 connection from
> VLAN 7 to R4 and R5.
>
>
>
> So R4 and R5 ethernet is joining Group 224.1.1.1.
>
> And the solustion also use ip PIM NBMA-MODE on R5 Serial frame-relay
> connection.
>
>
>
> The Question is, Why R3 connection to R1 and R2 doesn't have to use ip pim
> nbma-mode ?
>
>
>
> Still confuse when to use Ip Pim NBMA-MOde,
>
>
>
> Please need you guys help on this.
>
>
>
> Thanks a lot
>
>
>
>
>
> Best Regards,
>
>
>
> Mark Stephanus Chandra
>
> IT-Network
>
>
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>
> --
> Regards,
>
> Hobbs
> uncertified
> @ReplyToTheEmail.com
>
-- Regards,Hobbs uncertified @ReplyToTheEmail.com
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