From: Hobbs (deadheadblues@gmail.com)
Date: Mon Oct 06 2008 - 01:40:27 ART
Reply is unicast, it takes the shortest route back :) Even so the ping reply
comes in from R5 then gets sent to R2 or R1 to vlan 7.
On Sun, Oct 5, 2008 at 10:26 PM, <mark.chandra@gmail.com> wrote:
> 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(R) wireless device from XL GPRS/EDGE/3G network
>
> ------------------------------
> *From*: Hobbs <deadheadblues@gmail.com>
> *Date*: Sun, 5 Oct 2008 22:26:45 -0600
>
> *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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>>
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>>
>>
>>
>>
>>
>>
>>
>> --
>> Regards,
>>
>> Hobbs
>> uncertified
>> @ReplyToTheEmail.com
>>
>
>
>
> --
> Regards,
>
> Hobbs
> uncertified
> @ReplyToTheEmail.com
>
-- Regards,Hobbs uncertified @ReplyToTheEmail.com
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