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Cc: "ospf@ietf.org" <ospf@ietf.org>, "ospf-chairs@tools.ietf.org" <ospf-chairs@tools.ietf.org>, draft-ietf-ospf-auth-trailer-ospfv3@tools.ietf.org
Subject: [OSPF] Approved: draft-ietf-ospf-auth-trailer-ospfv3
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draft-ietf-ospf-auth-trailer-ospfv3 is now approved for publication.


- Stewart

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Subject: [OSPF] Protocol Action: 'Supporting Authentication Trailer for OSPFv3' to	Proposed Standard (draft-ietf-ospf-auth-trailer-ospfv3-11.txt)
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The IESG has approved the following document:
- 'Supporting Authentication Trailer for OSPFv3'
  (draft-ietf-ospf-auth-trailer-ospfv3-11.txt) as a Proposed Standard

This document is the product of the Open Shortest Path First IGP Working
Group.

The IESG contact persons are Stewart Bryant and Adrian Farrel.

A URL of this Internet Draft is:
http://datatracker.ietf.org/doc/draft-ietf-ospf-auth-trailer-ospfv3/




Technical Summary

   Currently OSPFv3 uses IPsec as the only mechanism for authenticating
   protocol packets.  This behavior is different from authentication
   mechanisms present in other routing protocols (OSPFv2, IS-IS, RIPng).
   In some environments, it has been found that IPsec is difficult to
   configure and maintain, and cannot be used.  This document proposes
   an alternative mechanism to authenticate OSPFv3 protocol packets so
   that OSPFv3 does not depend upon only IPsec for authentication.

Working Group Summary

    There was discussion about the size of Crypto Sequence Number. 
    After much debate it was agreed to increase it from 32 bit to 64 bit.   

Document Quality

    This extension is similar to OSPFv2 Cryptographic Authentication
    where a message digest is appended to the end of the OSPF packet.
    There is no known implementation at this time. 

Personnel

Abhay Roy (akr@cisco.com) is the Document Shepherd for this document.
Stewart Bryant (stbryant@cisco.com) Responsible Area Director.

RFC Editor Note

Abstract
s/proposes/defines/

Introduction
s/This document proposes a new mechanism/This document defines a new mechanism/

- end of section 3 is missing a full stop.

Section 4.3
s/> the secret key/the secret key/

From thirumavalavan.periyannan@ipinfusion.com  Tue Dec 27 03:46:24 2011
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Subject: [OSPF] Clarification of DR & BDR Processing in OSPFV3
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Hi All,



I have a doubt in DR and BDR process in OSPFV3.



=93   *AllDRouters*:

                     This multicast address has been assigned the value
FF02::6.

   *Both the Designated Router and Backup Designated Router must be*

*   prepared to receive packets* destined to this address.  Certain

   OSPF protocol packets are sent to this address during the

   flooding procedure.=94



RFC says, DR & BDR must be *prepared* to receive packets destined to
FF02::6, Here is that *Prepared* means to say BDR needs

to process the packet with destination address FF02::6 (ALLDRouters)?



In CISCO routers, BDR is not processing the packet with destination address
=93ALLDRouters=94.

But the same BDR when it receives an update packet with destination address
as =93ALLSPFRouters=94, it is processing the packet.



So I want a clarification of the above lines in the standard.



Regards,

*Thirumavalavan *

Consultant

[image: Description: Description: Description: IP
Infustion]<http://www.ipinfusion.com/index.html>

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d medium)"><style><!--
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--></style></head><body lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div =
class=3D"WordSection1"><p class=3D"MsoNormal"><span style=3D"font-family:&q=
uot;Bookman Old Style&quot;,&quot;serif&quot;">Hi All,</span></p><p class=
=3D"MsoNormal">
<span style=3D"font-family:&quot;Bookman Old Style&quot;,&quot;serif&quot;"=
>=A0</span></p><p class=3D"MsoNormal"><span style=3D"font-family:&quot;Book=
man Old Style&quot;,&quot;serif&quot;">I have a doubt in DR and BDR process=
 in OSPFV3.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Bookman Old Style&q=
uot;,&quot;serif&quot;">=A0</span></p><p class=3D"MsoNormal"><span style=3D=
"font-family:&quot;Bookman Old Style&quot;,&quot;serif&quot;">=93=A0 </span=
><span style=3D"font-family:&quot;Bookman Old Style&quot;,&quot;serif&quot;=
">=A0<b>AllDRouters</b>:=A0 </span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Bookman Old Style&q=
uot;,&quot;serif&quot;">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0 =A0This multicast address has been assigned the value FF02::6.</span=
></p><p class=3D"MsoNormal"><span style=3D"font-family:&quot;Bookman Old St=
yle&quot;,&quot;serif&quot;">=A0=A0 <b><span style=3D"color:#0070c0">Both t=
he Designated Router and Backup Designated Router must be</span></b></span>=
</p>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Bookman Old Styl=
e&quot;,&quot;serif&quot;;color:#0070c0">=A0=A0=A0prepared to receive packe=
ts</span></b><span style=3D"font-family:&quot;Bookman Old Style&quot;,&quot=
;serif&quot;;color:#0070c0"> </span><span style=3D"font-family:&quot;Bookma=
n Old Style&quot;,&quot;serif&quot;">destined to this address.=A0 Certain</=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Bookman Old Style&q=
uot;,&quot;serif&quot;">=A0=A0=A0OSPF protocol packets are sent to this add=
ress during the</span></p><p class=3D"MsoNormal"><span style=3D"font-family=
:&quot;Bookman Old Style&quot;,&quot;serif&quot;">=A0=A0=A0flooding procedu=
re.=94</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Bookman Old Style&q=
uot;,&quot;serif&quot;">=A0</span></p><p class=3D"MsoNormal"><span style=3D=
"font-family:&quot;Bookman Old Style&quot;,&quot;serif&quot;">RFC says, DR =
&amp; BDR must be <b><i>prepared</i></b> to receive packets destined to FF0=
2::6, Here is that <b>Prepared</b> means to say BDR needs </span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Bookman Old Style&q=
uot;,&quot;serif&quot;">to process the packet with destination address FF02=
::6 (ALLDRouters)?</span></p><p class=3D"MsoNormal"><span style=3D"font-fam=
ily:&quot;Bookman Old Style&quot;,&quot;serif&quot;">=A0</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Bookman Old Style&q=
uot;,&quot;serif&quot;">In CISCO routers, BDR is not processing the packet =
with destination address =93ALLDRouters=94.</span></p><p class=3D"MsoNormal=
"><span style=3D"font-family:&quot;Bookman Old Style&quot;,&quot;serif&quot=
;">But the same BDR when it receives an update packet with destination addr=
ess as =93ALLSPFRouters=94, it is processing the packet.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Bookman Old Style&q=
uot;,&quot;serif&quot;">=A0</span></p><p class=3D"MsoNormal"><span style=3D=
"font-family:&quot;Bookman Old Style&quot;,&quot;serif&quot;">So I want a c=
larification of the above lines in the standard.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Bookman Old Style&q=
uot;,&quot;serif&quot;">=A0</span></p><p class=3D"MsoNormal"><span style=3D=
"color:black">Regards,</span><span style=3D"color:black"></span></p><p clas=
s=3D"MsoNormal">
<b><span style=3D"color:black">Thirumavalavan </span></b></p><p class=3D"Ms=
oNormal"><span style=3D"color:black">Consultant</span></p><p class=3D"MsoNo=
rmal"><a href=3D"http://www.ipinfusion.com/index.html"><span style=3D"font-=
size:8.5pt;font-family:&quot;Verdana&quot;,&quot;sans-serif&quot;;color:#00=
2469;text-decoration:none"><img border=3D"0" width=3D"221" height=3D"60" id=
=3D"Picture_x0020_1" src=3D"cid:image001.gif@01CCC4B8.85417D70" alt=3D"Desc=
ription: Description: Description: IP Infustion"></span></a><span style=3D"=
color:#1f497d"></span></p>
<p class=3D"MsoNormal">=A0</p></div></body></html>

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From: Acee Lindem <acee.lindem@ericsson.com>
To: Thirumavalavan Periyannan <thirumavalavan.periyannan@ipinfusion.com>
Date: Tue, 27 Dec 2011 13:24:02 -0500
Thread-Topic: [OSPF] Clarification of DR & BDR Processing in OSPFV3
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Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3
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Hi Thirumalvalavan,=20
See inline.=20
On Dec 27, 2011, at 6:46 AM, Thirumavalavan Periyannan wrote:

> Hi All,
> =20
> I have a doubt in DR and BDR process in OSPFV3.
> =20
> =93   AllDRouters:=20
>                      This multicast address has been assigned the =
value FF02::6.
>    Both the Designated Router and Backup Designated Router must be
>    prepared to receive packets destined to this address.  Certain
>    OSPF protocol packets are sent to this address during the
>    flooding procedure.=94
> =20
> RFC says, DR & BDR must be prepared to receive packets destined to =
FF02::6, Here is that Prepared means to say BDR needs
> to process the packet with destination address FF02::6 (ALLDRouters)?

Yes. This is somewhat implementation and network interface type specific =
but it implies that the packet will be received and passed to the OSPFv3 =
instance's receive queue.=20
For example, on ethernet this implies that packets sent the Multicast =
MAC 33:33:00:00:00:06.=20

> =20
> In CISCO routers, BDR is not processing the packet with destination =
address =93ALLDRouters=94.
> But the same BDR when it receives an update packet with destination =
address as =93ALLSPFRouters=94, it is processing the packet.

The receiving OSPFv3 router should process all packets addressed to =
FF02::6. I'd advise you turn on some debugs on the both the sending and =
receiving OSPFv3 routers to determine whether or not the packet is being =
rejected.=20

Hope this helps,
Acee

> =20
> So I want a clarification of the above lines in the standard.
> =20
> Regards,
> Thirumavalavan
> Consultant
>=20
> =20


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<html><head><base href=3D"x-msg://39/"></head><body style=3D"word-wrap: =
break-word; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space; ">Hi Thirumalvalavan,&nbsp;<div>See =
inline.&nbsp;<br><div><div>On Dec 27, 2011, at 6:46 AM, Thirumavalavan =
Periyannan wrote:</div><br class=3D"Apple-interchange-newline"><blockquote=
 type=3D"cite"><span class=3D"Apple-style-span" style=3D"border-collapse: =
separate; font-family: Helvetica; font-style: normal; font-variant: =
normal; font-weight: normal; letter-spacing: normal; line-height: =
normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: =
0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div =
lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div class=3D"WordSection1" =
style=3D"page: WordSection1; "><div style=3D"margin-top: 0in; =
margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: =
11pt; font-family: Calibri, sans-serif; "><span style=3D"font-family: =
'Bookman Old Style', serif; ">Hi All,</span></div><p class=3D"MsoNormal" =
style=3D"margin-top: 0in; margin-right: 0in; margin-left: 0in; =
margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, =
sans-serif; "><span style=3D"font-family: 'Bookman Old Style', serif; =
">&nbsp;</span></p><div style=3D"margin-top: 0in; margin-right: 0in; =
margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif; "><span style=3D"font-family: 'Bookman Old Style', =
serif; ">I have a doubt in DR and BDR process in OSPFV3.</span></div><p =
class=3D"MsoNormal" style=3D"margin-top: 0in; margin-right: 0in; =
margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif; "><span style=3D"font-family: 'Bookman Old Style', =
serif; ">&nbsp;</span></p><div style=3D"margin-top: 0in; margin-right: =
0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif; "><span style=3D"font-family: 'Bookman =
Old Style', serif; ">=93&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span></span><span =
style=3D"font-family: 'Bookman Old Style', serif; =
">&nbsp;<b>AllDRouters</b>:&nbsp;</span></div><div style=3D"margin-top: =
0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif; "><span =
style=3D"font-family: 'Bookman Old Style', serif; =
">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;This multicast address =
has been assigned the value FF02::6.</span></div><div style=3D"margin-top:=
 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif; "><span =
style=3D"font-family: 'Bookman Old Style', serif; ">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><b><span style=3D"color: =
rgb(0, 112, 192); ">Both the Designated Router and Backup Designated =
Router must be</span></b></span></div><div style=3D"margin-top: 0in; =
margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: =
11pt; font-family: Calibri, sans-serif; "><b><span style=3D"font-family: =
'Bookman Old Style', serif; color: rgb(0, 112, 192); =
">&nbsp;&nbsp;&nbsp;prepared to receive packets</span></b><span =
style=3D"font-family: 'Bookman Old Style', serif; color: rgb(0, 112, =
192); "><span class=3D"Apple-converted-space">&nbsp;</span></span><span =
style=3D"font-family: 'Bookman Old Style', serif; ">destined to this =
address.&nbsp; Certain</span></div><div style=3D"margin-top: 0in; =
margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: =
11pt; font-family: Calibri, sans-serif; "><span style=3D"font-family: =
'Bookman Old Style', serif; ">&nbsp;&nbsp;&nbsp;OSPF protocol packets =
are sent to this address during the</span></div><div style=3D"margin-top: =
0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif; "><span =
style=3D"font-family: 'Bookman Old Style', serif; =
">&nbsp;&nbsp;&nbsp;flooding procedure.=94</span></div><p =
class=3D"MsoNormal" style=3D"margin-top: 0in; margin-right: 0in; =
margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif; "><span style=3D"font-family: 'Bookman Old Style', =
serif; ">&nbsp;</span></p><div style=3D"margin-top: 0in; margin-right: =
0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif; "><span style=3D"font-family: 'Bookman =
Old Style', serif; ">RFC says, DR &amp; BDR must be<span =
class=3D"Apple-converted-space">&nbsp;</span><b><i>prepared</i></b><span =
class=3D"Apple-converted-space">&nbsp;</span>to receive packets destined =
to FF02::6, Here is that<span =
class=3D"Apple-converted-space">&nbsp;</span><b>Prepared</b><span =
class=3D"Apple-converted-space">&nbsp;</span>means to say BDR =
needs</span></div><div style=3D"margin-top: 0in; margin-right: 0in; =
margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif; "><span style=3D"font-family: 'Bookman Old Style', =
serif; ">to process the packet with destination address FF02::6 =
(ALLDRouters)?</span></div></div></div></span></blockquote><div><br></div>=
<div>Yes. This is somewhat implementation and network interface type =
specific but it implies that the packet will be received and passed to =
the OSPFv3 instance's receive queue.&nbsp;</div><div>For example, on =
ethernet this implies that packets sent the Multicast MAC =
33:33:00:00:00:06.&nbsp;</div><br><blockquote type=3D"cite"><span =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
font-family: Helvetica; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; line-height: normal; =
orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: =
none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: =
0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div =
lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div class=3D"WordSection1" =
style=3D"page: WordSection1; "><p class=3D"MsoNormal" style=3D"margin-top:=
 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif; "><span =
style=3D"font-family: 'Bookman Old Style', serif; =
">&nbsp;</span></p><div style=3D"margin-top: 0in; margin-right: 0in; =
margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif; "><span style=3D"font-family: 'Bookman Old Style', =
serif; ">In CISCO routers, BDR is not processing the packet with =
destination address =93ALLDRouters=94.</span></div><div =
style=3D"margin-top: 0in; margin-right: 0in; margin-left: 0in; =
margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, =
sans-serif; "><span style=3D"font-family: 'Bookman Old Style', serif; =
">But the same BDR when it receives an update packet with destination =
address as =93ALLSPFRouters=94, it is processing the =
packet.</span></div></div></div></span></blockquote><div><br></div><div>Th=
e receiving OSPFv3 router should process all packets addressed to =
FF02::6. I'd advise you turn on some debugs on the both the sending and =
receiving OSPFv3 routers to determine whether or not the packet is being =
rejected.&nbsp;</div><div><br></div><div>Hope this =
helps,</div><div>Acee</div><br><blockquote type=3D"cite"><span =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
font-family: Helvetica; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; line-height: normal; =
orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: =
none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: =
0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div =
lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div class=3D"WordSection1" =
style=3D"page: WordSection1; "><p class=3D"MsoNormal" style=3D"margin-top:=
 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif; "><span =
style=3D"font-family: 'Bookman Old Style', serif; =
">&nbsp;</span></p><div style=3D"margin-top: 0in; margin-right: 0in; =
margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif; "><span style=3D"font-family: 'Bookman Old Style', =
serif; ">So I want a clarification of the above lines in the =
standard.</span></div><p class=3D"MsoNormal" style=3D"margin-top: 0in; =
margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: =
11pt; font-family: Calibri, sans-serif; "><span style=3D"font-family: =
'Bookman Old Style', serif; ">&nbsp;</span></p><div style=3D"margin-top: =
0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif; "><span style=3D"color:=
 black; ">Regards,</span><span style=3D"color: black; =
"></span></div><div style=3D"margin-top: 0in; margin-right: 0in; =
margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif; "><b><span style=3D"color: black; =
">Thirumavalavan</span></b></div><div style=3D"margin-top: 0in; =
margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: =
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">Consultant</span></div><div style=3D"margin-top: 0in; margin-right: =
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From thirumavalavan.periyannan@ipinfusion.com  Wed Dec 28 22:19:34 2011
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From: Thirumavalavan Periyannan <thirumavalavan.periyannan@ipinfusion.com>
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Date: Thu, 29 Dec 2011 11:49:28 +0530
Message-ID: <6715afd183aa2e500a294238fb30c9f8@mail.gmail.com>
To: Acee Lindem <acee.lindem@ericsson.com>
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Cc: OSPF@ietf.org
Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3
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Hi Acee,



I used distribution list to drop the routing update packet (coming from DR)
only with this destination address =93*ALLSPFRouters*=94 at Backup designat=
ed
router and

BDR received (without dropping) a routing update packet with destination
address *ALLDRouters*



And I checked the routing table; Expected route is not installed in routing
table that means BDR couldn=92t process the update packet with destination
address as =93*ALLDRouters*=94



Regards,

*Thirumavalavan *

Consultant

[image: Description: Description: Description: IP
Infustion]<http://www.ipinfusion.com/index.html>



*From:* Acee Lindem [mailto:acee.lindem@ericsson.com]
*Sent:* Tuesday, December 27, 2011 11:54 PM
*To:* Thirumavalavan Periyannan
*Cc:* <OSPF@ietf.org>
*Subject:* Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3



Hi Thirumalvalavan,

See inline.

On Dec 27, 2011, at 6:46 AM, Thirumavalavan Periyannan wrote:



Hi All,



I have a doubt in DR and BDR process in OSPFV3.



=93   *AllDRouters*:

                     This multicast address has been assigned the value
FF02::6.

   *Both the Designated Router and Backup Designated Router must be*

*   prepared to receive packets* destined to this address.  Certain

   OSPF protocol packets are sent to this address during the

   flooding procedure.=94



RFC says, DR & BDR must be *prepared* to receive packets destined to
FF02::6, Here is that *Prepared* means to say BDR needs

to process the packet with destination address FF02::6 (ALLDRouters)?



Yes. This is somewhat implementation and network interface type specific
but it implies that the packet will be received and passed to the OSPFv3
instance's receive queue.

For example, on ethernet this implies that packets sent the Multicast MAC
33:33:00:00:00:06.





In CISCO routers, BDR is not processing the packet with destination address
=93ALLDRouters=94.

But the same BDR when it receives an update packet with destination address
as =93ALLSPFRouters=94, it is processing the packet.



The receiving OSPFv3 router should process all packets addressed to
FF02::6. I'd advise you turn on some debugs on the both the sending and
receiving OSPFv3 routers to determine whether or not the packet is being
rejected.



Hope this helps,

Acee





So I want a clarification of the above lines in the standard.



Regards,

*Thirumavalavan*

Consultant

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--></style></head><body lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div =
class=3D"WordSection1"><p class=3D"MsoNormal"><span style=3D"font-size:11.0=
pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">Hi=
 Acee,</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">=A0</span></p><p class=3D=
"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;=
,&quot;sans-serif&quot;;color:#1f497d">I used distribution list to drop the=
 routing update packet (coming from DR) only with this destination address =
=93<b>ALLSPFRouters</b>=94 at Backup designated router and </span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">BDR received (without dro=
pping) a routing update packet with destination address <b>ALLDRouters</b><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">=A0</span></p><p class=3D=
"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;=
,&quot;sans-serif&quot;;color:#1f497d">And I checked the routing table; Exp=
ected route is not installed in routing table that means BDR couldn=92t pro=
cess the update packet with destination address as =93<b>ALLDRouters</b>=94=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">=A0</span></p><div><p cla=
ss=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,&quot;sans-serif&quot;;color:black">Regards,</span><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:=
black"></span></p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,&quot;sans-serif&quot;;color:black">Thirumavalavan </span></=
b></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:black">Consultant</span></p>
<p class=3D"MsoNormal"><a href=3D"http://www.ipinfusion.com/index.html"><sp=
an style=3D"font-size:8.5pt;font-family:&quot;Verdana&quot;,&quot;sans-seri=
f&quot;;color:#002469;text-decoration:none"><img border=3D"0" width=3D"221"=
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BF30" alt=3D"Description: Description: Description: IP Infustion"></span></=
a><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;san=
s-serif&quot;;color:#1f497d"></span></p>
</div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=A0</span></p><div>=
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:&quot=
;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> Acee Lin=
dem [mailto:<a href=3D"mailto:acee.lindem@ericsson.com">acee.lindem@ericsso=
n.com</a>] <br>
<b>Sent:</b> Tuesday, December 27, 2011 11:54 PM<br><b>To:</b> Thirumavalav=
an Periyannan<br><b>Cc:</b> &lt;<a href=3D"mailto:OSPF@ietf.org">OSPF@ietf.=
org</a>&gt;<br><b>Subject:</b> Re: [OSPF] Clarification of DR &amp; BDR Pro=
cessing in OSPFV3</span></p>
</div></div><p class=3D"MsoNormal">=A0</p><p class=3D"MsoNormal">Hi Thiruma=
lvalavan,=A0</p><div><p class=3D"MsoNormal">See inline.=A0</p><div><div><p =
class=3D"MsoNormal">On Dec 27, 2011, at 6:46 AM, Thirumavalavan Periyannan =
wrote:</p>
</div><p class=3D"MsoNormal"><br><br></p><div><div><p class=3D"MsoNormal"><=
span style=3D"font-size:11.0pt;font-family:&quot;Bookman Old Style&quot;,&q=
uot;serif&quot;">Hi All,</span><span style=3D"font-size:11.0pt;font-family:=
&quot;Calibri&quot;,&quot;sans-serif&quot;"></span></p>
</div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&q=
uot;Bookman Old Style&quot;,&quot;serif&quot;">=A0</span><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"></spa=
n></p>
<div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Bookman Old Style&quot;,&quot;serif&quot;">I have a doubt in DR and BDR =
process in OSPFV3.</span><span style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,&quot;sans-serif&quot;"></span></p>
</div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&q=
uot;Bookman Old Style&quot;,&quot;serif&quot;">=A0</span><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"></spa=
n></p>
<div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Bookman Old Style&quot;,&quot;serif&quot;">=93=A0<span class=3D"apple-co=
nverted-space">=A0</span>=A0<b>AllDRouters</b>:=A0</span><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"></spa=
n></p>
</div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fami=
ly:&quot;Bookman Old Style&quot;,&quot;serif&quot;">=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =A0This multicast address has been ass=
igned the value FF02::6.</span><span style=3D"font-size:11.0pt;font-family:=
&quot;Calibri&quot;,&quot;sans-serif&quot;"></span></p>
</div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fami=
ly:&quot;Bookman Old Style&quot;,&quot;serif&quot;">=A0=A0<span class=3D"ap=
ple-converted-space">=A0</span><b><span style=3D"color:#0070c0">Both the De=
signated Router and Backup Designated Router must be</span></b></span><span=
 style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;"></span></p>
</div><div><p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font-f=
amily:&quot;Bookman Old Style&quot;,&quot;serif&quot;;color:#0070c0">=A0=A0=
=A0prepared to receive packets</span></b><span class=3D"apple-converted-spa=
ce"><span style=3D"font-size:11.0pt;font-family:&quot;Bookman Old Style&quo=
t;,&quot;serif&quot;;color:#0070c0">=A0</span></span><span style=3D"font-si=
ze:11.0pt;font-family:&quot;Bookman Old Style&quot;,&quot;serif&quot;">dest=
ined to this address.=A0 Certain</span><span style=3D"font-size:11.0pt;font=
-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"></span></p>
</div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fami=
ly:&quot;Bookman Old Style&quot;,&quot;serif&quot;">=A0=A0=A0OSPF protocol =
packets are sent to this address during the</span><span style=3D"font-size:=
11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"></span></p>
</div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fami=
ly:&quot;Bookman Old Style&quot;,&quot;serif&quot;">=A0=A0=A0flooding proce=
dure.=94</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;"></span></p>
</div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&q=
uot;Bookman Old Style&quot;,&quot;serif&quot;">=A0</span><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"></spa=
n></p>
<div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Bookman Old Style&quot;,&quot;serif&quot;">RFC says, DR &amp; BDR must b=
e<span class=3D"apple-converted-space">=A0</span><b><i>prepared</i></b><spa=
n class=3D"apple-converted-space">=A0</span>to receive packets destined to =
FF02::6, Here is that<span class=3D"apple-converted-space">=A0</span><b>Pre=
pared</b><span class=3D"apple-converted-space">=A0</span>means to say BDR n=
eeds</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,=
&quot;sans-serif&quot;"></span></p>
</div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fami=
ly:&quot;Bookman Old Style&quot;,&quot;serif&quot;">to process the packet w=
ith destination address FF02::6 (ALLDRouters)?</span><span style=3D"font-si=
ze:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"></span></=
p>
</div></div><div><p class=3D"MsoNormal">=A0</p></div><div><p class=3D"MsoNo=
rmal">Yes. This is somewhat implementation and network interface type speci=
fic but it implies that the packet will be received and passed to the OSPFv=
3 instance&#39;s receive queue.=A0</p>
</div><div><p class=3D"MsoNormal">For example, on ethernet this implies tha=
t packets sent the Multicast MAC 33:33:00:00:00:06.=A0</p></div><p class=3D=
"MsoNormal"><br><br></p><div><p class=3D"MsoNormal"><span style=3D"font-siz=
e:11.0pt;font-family:&quot;Bookman Old Style&quot;,&quot;serif&quot;">=A0</=
span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;=
sans-serif&quot;"></span></p>
<div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Bookman Old Style&quot;,&quot;serif&quot;">In CISCO routers, BDR is not =
processing the packet with destination address =93ALLDRouters=94.</span><sp=
an style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-ser=
if&quot;"></span></p>
</div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fami=
ly:&quot;Bookman Old Style&quot;,&quot;serif&quot;">But the same BDR when i=
t receives an update packet with destination address as =93ALLSPFRouters=94=
, it is processing the packet.</span><span style=3D"font-size:11.0pt;font-f=
amily:&quot;Calibri&quot;,&quot;sans-serif&quot;"></span></p>
</div></div><div><p class=3D"MsoNormal">=A0</p></div><div><p class=3D"MsoNo=
rmal">The receiving OSPFv3 router should process all packets addressed to F=
F02::6. I&#39;d advise you turn on some debugs on the both the sending and =
receiving OSPFv3 routers to determine whether or not the packet is being re=
jected.=A0</p>
</div><div><p class=3D"MsoNormal">=A0</p></div><div><p class=3D"MsoNormal">=
Hope this helps,</p></div><div><p class=3D"MsoNormal">Acee</p></div><p clas=
s=3D"MsoNormal"><br><br></p><div><p class=3D"MsoNormal"><span style=3D"font=
-size:11.0pt;font-family:&quot;Bookman Old Style&quot;,&quot;serif&quot;">=
=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;"></span></p>
<div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Bookman Old Style&quot;,&quot;serif&quot;">So I want a clarification of =
the above lines in the standard.</span><span style=3D"font-size:11.0pt;font=
-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"></span></p>
</div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&q=
uot;Bookman Old Style&quot;,&quot;serif&quot;">=A0</span><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"></spa=
n></p>
<div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Calibri&quot;,&quot;sans-serif&quot;;color:black">Regards,</span><span s=
tyle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&q=
uot;"></span></p>
</div><div><p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font-f=
amily:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black">Thirumavalava=
n</span></b><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;=
,&quot;sans-serif&quot;"></span></p>
</div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fami=
ly:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black">Consultant</span=
><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans=
-serif&quot;"></span></p>
</div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;">=A0</span></p></div></div><p clas=
s=3D"MsoNormal">=A0</p></div></div></body></html>

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From tony.li@tony.li  Thu Dec 29 01:43:48 2011
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From: Tony Li <tony.li@tony.li>
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To: Thirumavalavan Periyannan <thirumavalavan.periyannan@ipinfusion.com>
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Cc: OSPF@ietf.org
Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3
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This list is intended for discussing spec issues and is probably not the =
best place to debug the problem.  I suggest you contact the developer =
for the other implementation.  If you're unaware of who the developer =
is, then if you can tell us the OS and version that you're trying to =
work with, we may be able to direct you.

Tony


On Dec 28, 2011, at 10:19 PM, Thirumavalavan Periyannan wrote:

> Hi Acee,
> =20
> I used distribution list to drop the routing update packet (coming =
from DR) only with this destination address =93ALLSPFRouters=94 at =
Backup designated router and
> BDR received (without dropping) a routing update packet with =
destination address ALLDRouters
> =20
> And I checked the routing table; Expected route is not installed in =
routing table that means BDR couldn=92t process the update packet with =
destination address as =93ALLDRouters=94
> =20
> Regards,
> Thirumavalavan
> Consultant
> <image001.gif>
> =20
> From: Acee Lindem [mailto:acee.lindem@ericsson.com]=20
> Sent: Tuesday, December 27, 2011 11:54 PM
> To: Thirumavalavan Periyannan
> Cc: <OSPF@ietf.org>
> Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3
> =20
> Hi Thirumalvalavan,=20
> See inline.=20
> On Dec 27, 2011, at 6:46 AM, Thirumavalavan Periyannan wrote:
>=20
>=20
> Hi All,
> =20
> I have a doubt in DR and BDR process in OSPFV3.
> =20
> =93   AllDRouters:=20
>                      This multicast address has been assigned the =
value FF02::6.
>    Both the Designated Router and Backup Designated Router must be
>    prepared to receive packets destined to this address.  Certain
>    OSPF protocol packets are sent to this address during the
>    flooding procedure.=94
> =20
> RFC says, DR & BDR must be prepared to receive packets destined to =
FF02::6, Here is that Prepared means to say BDR needs
> to process the packet with destination address FF02::6 (ALLDRouters)?
> =20
> Yes. This is somewhat implementation and network interface type =
specific but it implies that the packet will be received and passed to =
the OSPFv3 instance's receive queue.=20
> For example, on ethernet this implies that packets sent the Multicast =
MAC 33:33:00:00:00:06.=20
>=20
>=20
> =20
> In CISCO routers, BDR is not processing the packet with destination =
address =93ALLDRouters=94.
> But the same BDR when it receives an update packet with destination =
address as =93ALLSPFRouters=94, it is processing the packet.
> =20
> The receiving OSPFv3 router should process all packets addressed to =
FF02::6. I'd advise you turn on some debugs on the both the sending and =
receiving OSPFv3 routers to determine whether or not the packet is being =
rejected.=20
> =20
> Hope this helps,
> Acee
>=20
>=20
> =20
> So I want a clarification of the above lines in the standard.
> =20
> Regards,
> Thirumavalavan
> Consultant
> =20
> =20
> _______________________________________________
> OSPF mailing list
> OSPF@ietf.org
> https://www.ietf.org/mailman/listinfo/ospf


From thirumavalavan.periyannan@ipinfusion.com  Thu Dec 29 01:46:56 2011
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From: Thirumavalavan Periyannan <thirumavalavan.periyannan@ipinfusion.com>
References: <8d1cbfe6abb5623c62613e2819bc9665@mail.gmail.com> <EBB32D31-E757-40B3-9069-E41936CFF80F@ericsson.com> <6715afd183aa2e500a294238fb30c9f8@mail.gmail.com> <1C0858B6-A237-4B14-BBFC-B04C99FE32A0@tony.li>
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To: Tony Li <tony.li@tony.li>
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Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3
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Ok Thanks Tony.

 I will come back to you with detailed information.

Regards,
Thirumavalavan
Consultant



-----Original Message-----
From: Tony Li [mailto:tony.li@tony.li]
Sent: Thursday, December 29, 2011 3:14 PM
To: Thirumavalavan Periyannan
Cc: Acee Lindem; OSPF@ietf.org
Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3


This list is intended for discussing spec issues and is probably not the
best place to debug the problem.  I suggest you contact the developer for
the other implementation.  If you're unaware of who the developer is, then
if you can tell us the OS and version that you're trying to work with, we
may be able to direct you.

Tony


On Dec 28, 2011, at 10:19 PM, Thirumavalavan Periyannan wrote:

> Hi Acee,
>
> I used distribution list to drop the routing update packet (coming
> from DR) only with this destination address "ALLSPFRouters" at Backup
> designated router and BDR received (without dropping) a routing update
> packet with destination address ALLDRouters
>
> And I checked the routing table; Expected route is not installed in
routing table that means BDR couldn't process the update packet with
destination address as "ALLDRouters"
>
> Regards,
> Thirumavalavan
> Consultant
> <image001.gif>
>
> From: Acee Lindem [mailto:acee.lindem@ericsson.com]
> Sent: Tuesday, December 27, 2011 11:54 PM
> To: Thirumavalavan Periyannan
> Cc: <OSPF@ietf.org>
> Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3
>
> Hi Thirumalvalavan,
> See inline.
> On Dec 27, 2011, at 6:46 AM, Thirumavalavan Periyannan wrote:
>
>
> Hi All,
>
> I have a doubt in DR and BDR process in OSPFV3.
>
> "   AllDRouters:
>                      This multicast address has been assigned the value
FF02::6.
>    Both the Designated Router and Backup Designated Router must be
>    prepared to receive packets destined to this address.  Certain
>    OSPF protocol packets are sent to this address during the
>    flooding procedure."
>
> RFC says, DR & BDR must be prepared to receive packets destined to
> FF02::6, Here is that Prepared means to say BDR needs to process the
packet with destination address FF02::6 (ALLDRouters)?
>
> Yes. This is somewhat implementation and network interface type specific
but it implies that the packet will be received and passed to the OSPFv3
instance's receive queue.
> For example, on ethernet this implies that packets sent the Multicast
MAC 33:33:00:00:00:06.
>
>
>
> In CISCO routers, BDR is not processing the packet with destination
address "ALLDRouters".
> But the same BDR when it receives an update packet with destination
address as "ALLSPFRouters", it is processing the packet.
>
> The receiving OSPFv3 router should process all packets addressed to
FF02::6. I'd advise you turn on some debugs on the both the sending and
receiving OSPFv3 routers to determine whether or not the packet is being
rejected.
>
> Hope this helps,
> Acee
>
>
>
> So I want a clarification of the above lines in the standard.
>
> Regards,
> Thirumavalavan
> Consultant
>
>
> _______________________________________________
> OSPF mailing list
> OSPF@ietf.org
> https://www.ietf.org/mailman/listinfo/ospf

From acee.lindem@ericsson.com  Thu Dec 29 01:52:52 2011
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From: Acee Lindem <acee.lindem@ericsson.com>
To: Tony Li <tony.li@tony.li>
Date: Thu, 29 Dec 2011 04:52:42 -0500
Thread-Topic: [OSPF] Clarification of DR & BDR Processing in OSPFV3
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	charset=windows-1252

I was just about to say the same. The distribution-list is a proprietary =
extension that is not part of the standard OSPF protocol.=20
Thanks,
Acee

On Dec 29, 2011, at 4:43 AM, Tony Li wrote:

>=20
> This list is intended for discussing spec issues and is probably not =
the best place to debug the problem.  I suggest you contact the =
developer for the other implementation.  If you're unaware of who the =
developer is, then if you can tell us the OS and version that you're =
trying to work with, we may be able to direct you.
>=20
> Tony
>=20
>=20
> On Dec 28, 2011, at 10:19 PM, Thirumavalavan Periyannan wrote:
>=20
>> Hi Acee,
>>=20
>> I used distribution list to drop the routing update packet (coming =
from DR) only with this destination address =93ALLSPFRouters=94 at =
Backup designated router and
>> BDR received (without dropping) a routing update packet with =
destination address ALLDRouters
>>=20
>> And I checked the routing table; Expected route is not installed in =
routing table that means BDR couldn=92t process the update packet with =
destination address as =93ALLDRouters=94
>>=20
>> Regards,
>> Thirumavalavan
>> Consultant
>> <image001.gif>
>>=20
>> From: Acee Lindem [mailto:acee.lindem@ericsson.com]=20
>> Sent: Tuesday, December 27, 2011 11:54 PM
>> To: Thirumavalavan Periyannan
>> Cc: <OSPF@ietf.org>
>> Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3
>>=20
>> Hi Thirumalvalavan,=20
>> See inline.=20
>> On Dec 27, 2011, at 6:46 AM, Thirumavalavan Periyannan wrote:
>>=20
>>=20
>> Hi All,
>>=20
>> I have a doubt in DR and BDR process in OSPFV3.
>>=20
>> =93   AllDRouters:=20
>>                     This multicast address has been assigned the =
value FF02::6.
>>   Both the Designated Router and Backup Designated Router must be
>>   prepared to receive packets destined to this address.  Certain
>>   OSPF protocol packets are sent to this address during the
>>   flooding procedure.=94
>>=20
>> RFC says, DR & BDR must be prepared to receive packets destined to =
FF02::6, Here is that Prepared means to say BDR needs
>> to process the packet with destination address FF02::6 (ALLDRouters)?
>>=20
>> Yes. This is somewhat implementation and network interface type =
specific but it implies that the packet will be received and passed to =
the OSPFv3 instance's receive queue.=20
>> For example, on ethernet this implies that packets sent the Multicast =
MAC 33:33:00:00:00:06.=20
>>=20
>>=20
>>=20
>> In CISCO routers, BDR is not processing the packet with destination =
address =93ALLDRouters=94.
>> But the same BDR when it receives an update packet with destination =
address as =93ALLSPFRouters=94, it is processing the packet.
>>=20
>> The receiving OSPFv3 router should process all packets addressed to =
FF02::6. I'd advise you turn on some debugs on the both the sending and =
receiving OSPFv3 routers to determine whether or not the packet is being =
rejected.=20
>>=20
>> Hope this helps,
>> Acee
>>=20
>>=20
>>=20
>> So I want a clarification of the above lines in the standard.
>>=20
>> Regards,
>> Thirumavalavan
>> Consultant
>>=20
>>=20
>> _______________________________________________
>> OSPF mailing list
>> OSPF@ietf.org
>> https://www.ietf.org/mailman/listinfo/ospf
>=20


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From thirumavalavan.periyannan@ipinfusion.com  Thu Dec 29 02:59:03 2011
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From: Thirumavalavan Periyannan <thirumavalavan.periyannan@ipinfusion.com>
References: <8d1cbfe6abb5623c62613e2819bc9665@mail.gmail.com> <EBB32D31-E757-40B3-9069-E41936CFF80F@ericsson.com> <6715afd183aa2e500a294238fb30c9f8@mail.gmail.com> <1C0858B6-A237-4B14-BBFC-B04C99FE32A0@tony.li> <785550AA-1D89-4B98-85B6-46B6DDBDA65E@ericsson.com>
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Date: Thu, 29 Dec 2011 16:28:59 +0530
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To: Acee Lindem <acee.lindem@ericsson.com>, Tony Li <tony.li@tony.li>
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Cc: OSPF@ietf.org
Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3
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Distribution-list is just a method which I used to
simulate the issue for BDR to receive only the update packet with
destination address ALLDRouters
and BDR was not able to process it.

It looks like as an implementation issue.

Regards,
Thirumavalavan
Consultant


-----Original Message-----
From: Acee Lindem [mailto:acee.lindem@ericsson.com]
Sent: Thursday, December 29, 2011 3:23 PM
To: Tony Li
Cc: Thirumavalavan Periyannan; OSPF@ietf.org
Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3

I was just about to say the same. The distribution-list is a proprietary
extension that is not part of the standard OSPF protocol.
Thanks,
Acee

On Dec 29, 2011, at 4:43 AM, Tony Li wrote:

>
> This list is intended for discussing spec issues and is probably not the
best place to debug the problem.  I suggest you contact the developer for
the other implementation.  If you're unaware of who the developer is, then
if you can tell us the OS and version that you're trying to work with, we
may be able to direct you.
>
> Tony
>
>
> On Dec 28, 2011, at 10:19 PM, Thirumavalavan Periyannan wrote:
>
>> Hi Acee,
>>
>> I used distribution list to drop the routing update packet (coming from
DR) only with this destination address "ALLSPFRouters" at Backup
designated router and
>> BDR received (without dropping) a routing update packet with
destination address ALLDRouters
>>
>> And I checked the routing table; Expected route is not installed in
routing table that means BDR couldn't process the update packet with
destination address as "ALLDRouters"
>>
>> Regards,
>> Thirumavalavan
>> Consultant
>> <image001.gif>
>>
>> From: Acee Lindem [mailto:acee.lindem@ericsson.com]
>> Sent: Tuesday, December 27, 2011 11:54 PM
>> To: Thirumavalavan Periyannan
>> Cc: <OSPF@ietf.org>
>> Subject: Re: [OSPF] Clarification of DR & BDR Processing in OSPFV3
>>
>> Hi Thirumalvalavan,
>> See inline.
>> On Dec 27, 2011, at 6:46 AM, Thirumavalavan Periyannan wrote:
>>
>>
>> Hi All,
>>
>> I have a doubt in DR and BDR process in OSPFV3.
>>
>> "   AllDRouters:
>>                     This multicast address has been assigned the value
FF02::6.
>>   Both the Designated Router and Backup Designated Router must be
>>   prepared to receive packets destined to this address.  Certain
>>   OSPF protocol packets are sent to this address during the
>>   flooding procedure."
>>
>> RFC says, DR & BDR must be prepared to receive packets destined to
FF02::6, Here is that Prepared means to say BDR needs
>> to process the packet with destination address FF02::6 (ALLDRouters)?
>>
>> Yes. This is somewhat implementation and network interface type
specific but it implies that the packet will be received and passed to the
OSPFv3 instance's receive queue.
>> For example, on ethernet this implies that packets sent the Multicast
MAC 33:33:00:00:00:06.
>>
>>
>>
>> In CISCO routers, BDR is not processing the packet with destination
address "ALLDRouters".
>> But the same BDR when it receives an update packet with destination
address as "ALLSPFRouters", it is processing the packet.
>>
>> The receiving OSPFv3 router should process all packets addressed to
FF02::6. I'd advise you turn on some debugs on the both the sending and
receiving OSPFv3 routers to determine whether or not the packet is being
rejected.
>>
>> Hope this helps,
>> Acee
>>
>>
>>
>> So I want a clarification of the above lines in the standard.
>>
>> Regards,
>> Thirumavalavan
>> Consultant
>>
>>
>> _______________________________________________
>> OSPF mailing list
>> OSPF@ietf.org
>> https://www.ietf.org/mailman/listinfo/ospf
>
