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Link Layer Events Notifications for Detecting Network Attachments

Link Layer Events Notifications for Detecting Network Attachments. draft-ietf-dna-link-information-00.txt Alper Yegin, Eric Njedjou, Nicolas Montavont, Thomas Noel, Siva Veerepalli. Scope of the document.

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Link Layer Events Notifications for Detecting Network Attachments

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  1. Link Layer Events Notifications for Detecting Network Attachments draft-ietf-dna-link-information-00.txt Alper Yegin, Eric Njedjou, Nicolas Montavont, Thomas Noel, Siva Veerepalli

  2. Scope of the document • Certain access technologies are capable of providing various link-layer status information to IP • These Link-layer notifications can help IP expeditiously detect configuration changes • Link-layer events should deliver additional information as identity of the attachment point or IP configuration parameters • These parameters will determine wether action to be taken by IP is required as a consequence of the reception of the link events • Two link-layer events are potentially useful for the DNA process; • Link Up • Link Down

  3. Status update • Technologies for which link layer events for DNA have been identified • GPRS/UMTS Specification Release 4 (3GPP) • CDMA2000 (3GPP2) • IEEE Std 802.11-1999 / IEEE Draft 802.11i -2004 • Technologies to be added • IEEE 802.16? • IEEE 802.3? • Text for IEEE 802.11 Ad-hoc mode available soon

  4. GPRS/UMTS link events classification update • GPRS/UMTS • Two Types of link events, depending on usage scenarios • PPP type • Mobile node running IP is not on same equipment as the GPRS/UMTS protocol/stack: PPP interface used • Trigger for Link Up event: • Network Control Protocol phase reached and IPCP reached Opened state • Trigger for Link Down event: • IPCP termination (Close state reached)

  5. GPRS/UMTS link events classification update • GPRS/UMTS • Two Types of link events • GPRS link type • Mobile node running IP is on the same equipment as the GPRS/UMTS protocol/stack • Trigger for Link Up event: • Successful activation of PDP context (ACTIVATE PDP ACCEPT received at MS) • Trigger for Link Down event: • Successful deactivation of PDP context (DEACTIVATE PDP REQUEST sent/received from/at MS)

  6. application IP SNDCP/PDCP LLC/PDCP RLC MAC GSM RF/L1 GPRS/UMTS usage scenarios R Application Layer 3 1 SNDCP/PDCP GMM/SM Network Interface LLC/PDCP LLC/RRC PPP PPP RLC MAC RS232, IR, Bluetooth RS232, IR, Bluetooth GSM RF/L1 TE (laptop PC, PDA..) Mobile Station GMM/SM 2 LLC/RRC Mobile Station

  7. GPRS/UMTSlink events classification update • Are there 3GPP Mobility Management specialists to comment on this? • Are there implementors of IP layer on GPRS/UMTS/ stations to give their experience of providing IP with link events? • Are there two such scenarios for 3GPP2? • Any other Feedback from the group?

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