Mutually Exclusive Link Group (MELG) draft-beeram-ccamp-melg-00.txt Vishnu Pavan Beeram (Ed), John Drake, Gert Grammel [Juniper Networks] Igor Bryskin.

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Presentation transcript:

Mutually Exclusive Link Group (MELG) draft-beeram-ccamp-melg-00.txt Vishnu Pavan Beeram (Ed), John Drake, Gert Grammel [Juniper Networks] Igor Bryskin (Ed), Wes Doonan [Adva Optical Networking] Manuel Paul, Ruediger Kunze [Deutsche Telekom] Friedrich Armbruster, Cyril Margaria [NSN] Oscar González de Dios [Telefonica] Daniele Ceccarelli [Ericsson] draft-beeram-ccamp-melg-00.txt 1

MELG Discussed earlier in GMPLS-ENNI draft MELG-00 Content – Definition Virtual TE Links and their “mutual exclusivity” attribute – Usage – Protocol Formats OSPF/ISIS draft-beeram-ccamp-melg-00.txt 2

MELG: Example 1 3 B A C D E F G H I J A B E F J I C D Client TE Info MELG 33/ draft-beeram-ccamp-melg-00.txt Virtual “TE Links” E-I and F- J are mutually exclusive (Underlying server-paths require usage of the same resource – lambda channel ) Same MELG is assigned to both the “TE-Links”

MELG: Example 2 4 B A C D E F G H I J A B E F J I C D Client TE Info MELG /bcde4f10 draft-beeram-ccamp-melg-00.txt Virtual “TE Links” F-J and F- I are mutually exclusive (Underlying server-paths require usage of the same resource – source transponder [ID bcde4f10]) Same MELG is assigned to both the “TE-Links”

MELG: Construct Usage Indicate via separate network unique number(s) that the advertised Virtual TE Link belongs to one or more Mutually Exclusive Link Groups Indicate whether the advertised Virtual TE Link is committed or not at the time of advertising. 5 draft-beeram-ccamp-melg-00.txt

MELG: Construct Format 6 draft-beeram-ccamp-melg-00.txt

MELG: U-Bit Semantics VTE Link advertisement – MAY include MELGs sub-TLV with zero MELGs – Withdrawn, when there is no potential path – with (BW=0), (MELG U-Bit=0) Resources used by some other VTE Link with common MELG Candidate for MBB Computation, provided original path is known to PCE – with (BW=0), (MELG U-Bit=1) VTE Link is fully loaded Candidate for MBB computation, provided the original path is known to PCE and this link is present in the original path – with (BW≠0), (MELG U-Bit=0,1) Candidate for normal and MBB computation 7

Questions Separate document for extensions to each protocol ? Working Group status ? draft-beeram-ccamp-melg-00.txt 8

Thank you 9 draft-beeram-ccamp-melg-00.txt