Signaling Entropy Label Capability Using IS-IS

Document Type Replaced Internet-Draft (individual)
Authors Xiaohu Xu  , Sriganesh Kini  , Siva Sivabalan  , Clarence Filsfils  , Stephane Litkowski 
Last updated 2015-11-02 (latest revision 2015-04-20)
Replaced by RFC 9088
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Expired & archived
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IESG IESG state Replaced by draft-ietf-isis-mpls-elc
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Multi Protocol Label Switching (MPLS) has defined a mechanism to load balance traffic flows using Entropy Labels (EL). An ingress LSR cannot insert ELs for packets going into a given tunnel unless an egress LSR has indicated that it can process ELs for that tunnel. This draft defines a mechanism to signal that capability using IS-IS. This mechanism is useful when the label advertisement is also done via IS-IS.


Xiaohu Xu (
Sriganesh Kini (
Siva Sivabalan (
Clarence Filsfils (
Stephane Litkowski (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)