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

Note: This RFC has been updated by RFC 7274

Errata ID: 3728
Status: Held for Document Update
Type: Editorial
Publication Format(s) : TEXT
Reported By: Liu Lin
Date Reported: 2013-09-16
Held for Document Update by: Adrian Farrel
Date Held: 2013-09-17

Section 8 says:

If the IPv4 network mask is greater than 12 bits, 
it is possible to map the remaining 20 bits into 
a unique context label value.  

It should say:

If the IPv4 network mask is equal or greater than 12 bits, 
it is possible to map the remaining bits into 
a unique context label value.

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