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PW-CE 2 E

PW-CE 2 E. PWE3 – 58 th IETF 10 November 2003. Yaakov (J) Stein. PW-PE 2- E. In standard PWE “Edge to Edge” means “PE to PE”. PW. native service. native service. CE. CE. IWF. PE. PE. IWF. attachment circuit. attachment circuit. PSN. PW-CE 2- E.

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PW-CE 2 E

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  1. PW-CE2 E PWE3 – 58th IETF 10 November 2003 Yaakov (J) Stein

  2. PW-PE2-E In standard PWE “Edge to Edge” means “PEto PE” PW native service native service CE CE IWF PE PE IWF attachment circuit attachment circuit PSN

  3. PW-CE2-E Alternatively “Edge to Edge” could mean “CEto CE” PW CE IWF IWF CE PE PE attachment circuit attachment circuit PSN

  4. Pros & Cons PW-PE2-E • migration to PW doesn’t require customer upgrade • single (large) IWF serves multiple customers • service provider responsible for IWF PW-CE2-E • Ethernet access may be cheaper • easier to provide many different services • customer responsible for IWF • suitable for enterprise scenarios

  5. Questions • PWE3 Charter states • Service providers are seeking to offer multiple services acrossa common packet switched network … • From the customer perspective, the pseudo wire is perceived as anunshared link … of the chosen service • does this rule out PW-CE2-E ? • if so, can we fix it when we re-charter? • PWE3 architecture draft figure 2 (PWE3 Network Reference Model) is specifically PW-PE2-E • do we want to modify this ? • do we want to define 2 scenarios?

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