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No-label sub-TLV
Sub-TLV only meaningful when MPLS labels used ([RFC4364] or [RFC4659])
Indicates that BGP advertised MPLS labels should not be added to tunnel traffic
Alternative is to advertise prefixes with implicit NULL Label (3)
Sub-TLV also enables independent withdrawal of a prefix that is advertised to use more than one tunnel
Normally covered by different MPLS label values

PPT Version