The MPLS-OPS Archive

["Santiago Alvarez" <saalvare@cisco.com>]

Your understanding is correct.
Cheers.

SA
--

> -----Original Message-----
> From: M. ELK [mailto:elkou141061@hotmail.com] 
> Sent: Tuesday, March 23, 2004 12:16 AM
> To: bob_arthurs@hotmail.com; truggier@cisco.com
> Cc: mpls-ops@mplsrc.com
> Subject: RE: [MPLS-OPS]: Cisco docs- references to 'IGP label' ????
> 
> 
> 
> BOB
> 
> My understanding that the term "IGP Label" within a context 
> of BGP/MPLS VPN 
> refer to the TOP label which could be distributed by LDP 
> (between directly 
> connected LDP peer ) or RSVP . This to differentiate between 
> the MP-BGP 
> lable which is distributed by MP-BGP ( the Bottom Label) .
> 
> The TOP label need to be recognized by all LSR in the path , 
> so either 
> distributed by LDP
> (between directly connected LDP peer ) or RSVP .
> 
> i guess  that label distributed by targeted LDP (between 
> non-directly LDP 
> peer) should not be
> named as "IGP Label"  ex: PWE3 signalling used LDP targetted LDP to 
> advertised label not at all
> associated with IGP routes .
> 
> In short , "IGP Label" could be read as "TOP Label" .
> The text in CSCO doc :
> "Within a single network, can use LDP or RSVP to distribute 
> IGP labels" 
> could be read as
> "Within a single network, can use LDP (between directly 
> connected LDP Peer) 
> or RSVP to distribute TOP  labels ".
> 
> Brgds
> 
> 
> >From: "Bob Arthurs" <bob_arthurs@hotmail.com>
> >To: truggier@cisco.com
> >CC: mpls-ops@mplsrc.com
> >Subject: RE: [MPLS-OPS]: Cisco docs- references to 'IGP label' ????
> >Date: Mon, 22 Mar 2004 22:41:43 +0000
> >
> >thankyou tricia. i agree, i always thought it must be a 
> reference to a 
> >tdp/ldp label (because these labels correspond to igp best 
> routes) but got 
> >confused when i saw a reference in 
> >http://www.cisco.com/networkers/nw03/presos/docs/RST-2061.pdf
> . see slide 26 
> >on page 13. just looks like a mistake to me but its a cisco 
> (not ietf) term 
> >so...
> >
> >any thoughts?
> >
> >bob
> >
> >
> >>From: "tricia ruggiero" <truggier@cisco.com>
> >>To: "Bob Arthurs" <bob_arthurs@hotmail.com>, <mpls-ops@mplsrc.com>
> >>Subject: RE: [MPLS-OPS]: Cisco docs- references to 'IGP label' ????
> >>Date: Mon, 22 Mar 2004 17:28:49 -0500
> >>
> >>it's almost universally the ldp label - only igp routes get labeled.
> >>any pointers to the docs you're looking at - to confirm?
> >>tricia
> >>
> >>
> >>-----Original Message-----
> >>From: Bob Arthurs [mailto:bob_arthurs@hotmail.com]
> >>Sent: Monday, 22 March, 2004 5.12 pm
> >>To: mpls-ops@mplsrc.com
> >>Subject: [MPLS-OPS]: Cisco docs- references to 'IGP label' ????
> >>
> >>
> >>hello everyone
> >>
> >>i see in some cisco documentation the term 'igp label'. it 
> guess that this
> >>means a ldp/tdp labels only? am i right or does it include 
> rsvp labels 
> >>too?
> >>
> >>thankyou
> >>
> >>bob
> >>
> >>
> >
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