RFC 5331, "MPLS Upstream Label Assignment and Context-Specific Label Space", August 2008

Errata ID: 1702
Status: Held for Document Update
Type: Editorial
Publication Format(s) : TEXT
Reported By: Alfred Hoenes
Date Reported: 2009-03-02
Held for Document Update by: Adrian Farrel

Section 9 says:

   A typical use case of upstream-assigned labels is for MPLS multicast
   and is described here for illustration.  This use case arises when an
   upstream LSR Ru is adjacent to several downstream LSRs <Rd1...Rdn> in
|  an LSP, LSP1 AND Ru is connected to <Rd1...Rdn> via a multi-access
   media or tunnel, AND Ru wants to transmit a single copy of an MPLS
   packet on the LSP to <Rd1...Rdn>.  [...]

It should say:

   A typical use case of upstream-assigned labels is for MPLS multicast
   and is described here for illustration.  This use case arises when an
   upstream LSR Ru is adjacent to several downstream LSRs <Rd1...Rdn> in
|  an LSP, LSP1, AND Ru is connected to <Rd1...Rdn> via a multi-access
               ^
   media or tunnel, AND Ru wants to transmit a single copy of an MPLS
   packet on the LSP to <Rd1...Rdn>.  [...]

Notes:

Rationale:
The missing comma distorts the sense (giving the subject LSP a name,
"LSP1") and visually binds "LSP1" too much to the "AND".
Maybe it would have been preferable to also insert "say" for clarity:
"... and LSP, say LSP1, AND ..."

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