1 / 7

IEEE 802.1ah Mode for Ethernet Over MPLS draft-cao-pwe3-802.1ah-00.txt

IEEE 802.1ah Mode for Ethernet Over MPLS draft-cao-pwe3-802.1ah-00.txt. Wei Cao caowayne@huawei.com PWE3 WG, IETF67. Why Introduce 802.1ah to PWE3. 802.1ah and PBT(Provider Backbone Transport) are emerging Traffic Engineering Simple and scalable Deployment is forthcoming

kiona-mccullough
Télécharger la présentation

IEEE 802.1ah Mode for Ethernet Over MPLS draft-cao-pwe3-802.1ah-00.txt

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. IEEE 802.1ah Mode for Ethernet Over MPLSdraft-cao-pwe3-802.1ah-00.txt Wei Cao caowayne@huawei.com PWE3 WG, IETF67

  2. Why Introduce 802.1ah to PWE3 • 802.1ah and PBT(Provider Backbone Transport) are emerging • Traffic Engineering • Simple and scalable • Deployment is forthcoming • Current PWE3 does not fully match the requirement for 802.1ah • NSP (Native Service Procedure) should be considered for .1ah

  3. MPLS Network 802.1ah Domain 802.1ah Domain Core Switch NPE 1 NPE 2 UPE UPE 802.ah 802.ah PW Service Scenario of 802.1ah PW

  4. More Consideration • By Introducing 802.1ah, PW may use B-Tag/I-Tag to play more roles: • PW Multiplexing B-TAG/I-TAG can be used to identify the PW, so multiple Ethernet PWs may be multiplexed through one pair of PW labels to reduce the number of MPLS label required. • MS-PW Switching one could map BVID into PW label for each switch domain, or may use I-SID for PW label switching.

  5. Proposal of New Ethernet PW Mode • A new PW mode is defined: • Ethernet Tagged Mode, PW type 0x0004. • Ethernet Raw Mode, PW type 0x0005. • Ethernet 802.1ah Mode, PW type 0x001A(To Be Assigned) • Encapsulation compatibility: • There is no change on encapsulation defined in RFC 4448

  6. Proposal of NSP for 802.1ah Mode • Interface Parameter LDP Sub-TLV • 0x0D(To Be Assigned) Requested PBB I-TAG Sub-TLV • 0x0E(To Be Assigned) Requested PBB B-TAG/I-TAG Sub-TLV • 0x0F(To Be Assigned) Requested I-TAG Filter Sub-TLV

  7. Next Step? • Improve this document • Consider issues about MS-PW and 802.1ah

More Related