Subject: Re: L2vpn digest, Vol 1 #36 - 1 msg

From: lidefeng <[email-masked]>
Date: Tue, 12 Aug 2003 14:14:27 +0800

Where can I find the"l2vpn digest,Vol 1 #1" through "l2vpn digest,Vol 1
#35"?

I have only those of after "l2vpn digest,Vol 1 #36".

Thank you very much!

----- Original Message -----
From: <[email-masked]>
To: <[email-masked]>
Sent: Thursday, August 07, 2003 12:00 AM
Subject: L2vpn digest, Vol 1 #36 - 1 msg

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>    1. LDP, LSP PING and VPLS OAM questions (Yifat Migdal-Steinberg)
>
> --__--__--
>
> Message: 1
> Subject: LDP, LSP PING and VPLS OAM questions
> Date: Wed, 6 Aug 2003 16:24:32 +0300
> From: "Yifat Migdal-Steinberg" <[email-masked]>
> To: <[email-masked]>
>
>
> This is a multi-part message in MIME format.
>
> ------_=_NextPart_001_01C35C1E.12B7D0D3
> Content-Type: text/plain;
> charset="windows-1255"
> Content-Transfer-Encoding: quoted-printable
>
>
> Hello,
>
> I have the following questions regarding VPLS (H-VPLS) based on the =
> lassere-vkompella draft:
>
> Control plane versus Data plane:
>
> would it be true to say that :
>
> 1. data plane is responsible for encapsulation, de-encapsulation=20
> and forwarding  of packets.
> All packets arriving to the data plane are encapsulated with a VC label =
> and one or more LSP labels.
>
> 2. Control plane is responsible for setting up the VC and LSP tunnels. =
> It would usually be LDP for VC tunnels,
> and might be RSVP-TE for LSP tunnels in the core.=20
> The signaling messages (IP/UDP or IP/TCP frames MAY be encapsulated)
> (The main question is whether LDP packets are NEVER encapsulated, or MAY =
> be encapsulated).
> If they are encapsulated, is there a special encapsulation for signaling =
> (like special label value) ?
>
> LSP ping and VPLS OAM (Ping+Traceroute):
>
> Error codes: When sending an echo reply of a VPLS ping/traceroute, in =
> case of error, what would the
> return code in the echo reply message be - is it always 0, and an error =
> TLV is included with the appropriate VPLS OAM return code (1-7...)
> OR, the return value is one of the LSP ping error codes, and 0 + error =
> TLV is a private state.
>
> If only an H. L2 TLV (type=3D10) is included in the request message, is =
> the LSP checked as well, based on the label
> of the encapsulated packet, and an error code returned, or is it checked =
> ONLY if the appropriate
> TLV is included in the TLV stack. In case of error in the LSP  - what =
> would the return codes be?
> In case of error in the VC - what would the return code be?
>
> Generally - if an hierarchy of LSPs are tested, and a TLVs stack is =
> included,=20
> in case of error, what would be the return code in the reply message -
> does it refer only to the bottom TLV/LSP or other?
> (The question rises since the return code is one, while the TLVs may be =
> stackable)
>
> Yifat
>
> Mrs. Yifat Migdal-Steinberg
> RAD Data communications Ltd.
> 24 Raoul Vallenberg St.
> Tel-Aviv
> Tel:03-7657035
> Fax:03-6455305
>
>
> ------_=_NextPart_001_01C35C1E.12B7D0D3
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> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
> charset=3Dwindows-1255">
> <META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
> 6.0.6396.0">
> <TITLE>LDP, LSP PING and VPLS OAM questions</TITLE>
> </HEAD>
> <BODY>
> <!-- Converted from text/rtf format -->
> <BR>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">Hello,</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">I have the following =
> questions regarding VPLS (H-VPLS) based on the lassere-vkompella =
> draft:</FONT></P>
>
> <P DIR=3DLTR><U><FONT FACE=3D"Times New Roman">Control plane versus Data =
> plane:</FONT></U></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">would it be true to say that =
> :</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">1. data plane is responsible =
> for encapsulation, de-encapsulation </FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">and forwarding&nbsp; of =
> packets.</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">All packets arriving to the =
> data plane are encapsulated with a VC label and one or more LSP =
> labels.</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">2. Control plane is =
> responsible for setting up the VC and LSP tunnels. It would usually be =
> LDP for VC tunnels,</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">and might be RSVP-TE for LSP =
> tunnels in the core. </FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">The signaling messages =
> (IP/UDP or IP/TCP frames<B> MAY</B> be encapsulated)</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">(The main question is =
> whether LDP packets are</FONT><B> <FONT FACE=3D"Times New =
> Roman">NEVER</FONT></B><FONT FACE=3D"Times New Roman"> encapsulated, =
> or</FONT><B> <FONT FACE=3D"Times New Roman">MAY</FONT></B><FONT =
> FACE=3D"Times New Roman"> be encapsulated).</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">If they are encapsulated, is =
> there a special encapsulation for signaling (like special label value) =
> ?</FONT></P>
>
> <P DIR=3DLTR><U><FONT FACE=3D"Times New Roman">LSP ping and VPLS OAM =
> (Ping+Traceroute):</FONT></U></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">Error codes: When sending an =
> echo reply of a VPLS ping/traceroute, in case of error, what would =
> the</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">return code in the echo =
> reply message be - is it always 0, and an error TLV is included with the =
> appropriate VPLS OAM return code (1-7...)</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">OR, the return value is one =
> of the LSP ping error codes, and 0 + error TLV is a private =
> state.</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">If only an H. L2 TLV =
> (type=3D10) is included in the request message, is the LSP checked as =
> well, based on the label</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">of the encapsulated packet, =
> and an error code returned, or is it checked ONLY if the =
> appropriate</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">TLV is included in the TLV =
> stack. In case of error in the LSP&nbsp; - what would the return codes =
> be?</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">In case of error in the VC - =
> what would the return code be?</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">Generally - if an hierarchy =
> of LSPs are tested, and a TLVs stack is included, </FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">in case of error, what would =
> be the return code in the reply message -</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">does it refer only to the =
> bottom TLV/LSP or other?</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">(The question rises since =
> the return code is one, while the TLVs may be stackable)</FONT></P>
>
> <P DIR=3DLTR><FONT FACE=3D"Times New Roman">Yifat</FONT></P>
>
> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 =
> FACE=3D"Times New Roman">Mrs. Yifat Migdal-Steinberg</FONT></SPAN></P>
>
> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 =
> FACE=3D"Times New Roman">RAD Data communications Ltd.</FONT></SPAN></P>
>
> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 =
> FACE=3D"Times New Roman">24 Raoul Vallenberg St.</FONT></SPAN></P>
>
> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 =
> FACE=3D"Times New Roman">Tel-Aviv</FONT></SPAN></P>
>
> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 =
> FACE=3D"Times New Roman">Tel:03-7657035</FONT></SPAN></P>
>
> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT COLOR=3D"#000080" SIZE=3D2 =
> FACE=3D"Times New Roman">Fax:03-6455305</FONT></SPAN><SPAN =
> LANG=3D"he"></SPAN></P>
>
> </BODY>
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>
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