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Ronen Solomon ronens@corrigent Moran Roth moranr@corrigent

Encapsulation Methods for Transport of Fibre Channel Over MPLS draft-roth-pwe3-fc-encap-00.txt PWE3 IETF-63 August 2005. Ronen Solomon ronens@corrigent.com Moran Roth moranr@corrigent.com. Overview.

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Ronen Solomon ronens@corrigent Moran Roth moranr@corrigent

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  1. Encapsulation Methods for Transport of Fibre Channel Over MPLSdraft-roth-pwe3-fc-encap-00.txtPWE3 IETF-63 August 2005 Ronen Solomon ronens@corrigent.com Moran Roth moranr@corrigent.com

  2. Overview • Fibre Channel transport over MAN and WAN to extend SAN applications such as disaster recovery and business continuity. • Market demands Fibre Channel services over PSN to allow shared infrastructure. • PWE3 offers a service agnostics, Layer 2 transport for various protocols. • Simplicity and transparency are key requirements for deployment of FC services from the carrier perspective. • Reuse the exiting building blocks as defined by the PWE WG to support FC service.

  3. FC over PW – PWE3 network reference model • Attachment circuit includes Native Fibre Channel ports • N_Port – end-node (disk, server) • F_Port – fabric-switch (connected to N_Port) • E_Port – fabric extension (between switches)

  4. FC over PW – PWE3 Provider Edge reference model • Native service processing (NSP) for Fibre Channel is handled by T.11

  5. FC over PW - Protocol levels and layers To/From FC Ports FC-0 FC Interface FC-1 FC-BB NSP Layers PW PSN Layers PSN Transport Interface Physical layer To/From PSN Network

  6. FC Over PW – Encapsulation Guideline • FC dataframe is carried transparently in one PW PDU. • NSP control frame (WAN flow control, Echo) is carried transparently in one PW PDU.

  7. FC Over PW – Encapsulation Guideline • FC Primitive Sequences (control signals) are terminated at the local FC-BB NSP and sent as single control frame. • FC Primitive Signals (Idle, R_RDY credits) are terminated at the local FC-BB NSP.

  8. FC over PW – Encapsulation over MPLS/PW • Frame Encapsulation • MPLS PSN label • PW label • Optional control word • FC-BB-Header (Data/control indication, FC specific) • FC frame

  9. FC over MPLS – PWE3 requirements • Define new encapsulation method for Fibre channel over PW • Assign new PW Type “Fibre Channel port mode” • Add FC to the PW types in PWE3 Charter • Maintain the PWE control word as in “draft-ietf-pwe3-cw-05.txt” • Adopt a new PWE3 working item

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