Presentation on theme: "IP over Ethernet over 802.16 [draft-ietf-16ng-ip-over-ethernet-over-802.16-05.txt] IETF-71, Philadelphia, March 08 Max Riegel (NSN), Hongseok Jeon (ETRI),"— Presentation transcript:
IP over Ethernet over [draft-ietf-16ng-ip-over-ethernet-over txt] IETF-71, Philadelphia, March 08 Max Riegel (NSN), Hongseok Jeon (ETRI), Sangjin Jung (ETRI)
We apologize… Unfortunately we missed the submission deadline of our latest revision draft-ietf-16ng-ip- over-ethernet-over txt for the IETF- 71 by a couple of hours. Nevertheless this presentation refers to the latest revision, which should be in the IETF archives after the meeting. For the time being:
[draft-ietf-16ng-ip-over-ethernet-over txt] -04 version was submitted directly after IETF-70 Main issue: clarification of MTU issue when using VLANs for tunneling between BS and Net- Bridge –Due to stacked VLAN tags, packet size may exceed capabilities of Ethernet link between BS and Net- Bridge –Most of the Carrier Ethernet equipment can handle larger packets –Operator has to be aware of this particularity GRE-base tunneling does not have this issue
Review by IEEE From: ext Roger B. Marks Sent: Sunday, January 27, :16 PM Subject: [16NG] IEEE WG consideration of ip-over-ethernet-over internet draft Dear Daniel and Gabriel, Please consider the following statement of the IEEE Working Group: As always, we appreciate the opportunity to review your drafts. Regards, Roger B. Marks Chair, IEEE Working Group on Broadband Wireless Access
IEEE review comments During its Session #53 in Levi, Finland of January, the IEEE Working Group (WG), through an ah hoc review committee, developed the following comments on the IETF 16ng document draft-ietf-16ng-ip-over-ethernet- over Convergence Sublayer Types Section 4.2 discusses the different convergence sublayer types. During the development of the IP over Ethernet over specification, the GPCS (Generic Packet Convergence Sublayer) has been standardized in IEEE with the approval of the IEEE Std g-2007 amendment on 27 September This convergence sublayer supports Ethernet packet types. It appears that nowhere does the draft mention that it is either the 802.3/Ethernet specific part of the packet CS (Ethernet CS) or the GPCS over which the Ethernet frames are being carried. It would be appropriate to state this. GPCS Using the GPCS, the classification and Packet Header Suppression (PHS) of higher layer packets to particular service flows is performed outside the convergence sublayer and is indicated to the convergence sublayer through the use of a service flow ID and subscriber station MAC address that the convergence sublayer uses to identify a related CID. Multicast CIDs The second paragraph of Appendix A implies that a standardized means of establishing and maintaining multicast CIDs is needed. IEEE Std already provides this. It is the association with Layer 3 traffic that is not defined in the standard. MBS In the second paragraph of Appendix A, The term multicast and broadcast can be easily confused with MBS (multicast broadcast service). It would be appropriate to clarify the difference. Ongoing Work In the second paragraph of Appendix A, we suggest that the forward looking statement "Such a protocol is not yet available but under development by the Networking Working Group of the WiMAX Forum." is not appropriate for a standards RFC.
[draft-ietf-16ng-ip-over-ethernet-over txt] 1. Updated "Introduction" on CS (Convergence Sublayer) for IP over Ethernet transport A new paragraph has been added to the "Introduction" so that it introduces which CS can be used for transport of IP over Ethernet packets. 2. Updated "Section 4.2" on CS for IP over Ethernet transport Section 4.2 has been updated to state packet CSs over which Ethernet frames are being carried. Section 4.2 describes "Ethernet CS" and "GPCS" for IP over Ethernet packet transmission, and refers to IEEE g for "GPCS". 3. Clarified "Appendix A" The first paragraph was removed from Appendix A for clarification. The term 'multicast and broadcast' has been edited to 'multicast or broadcast' to differentiate the term with MBS. The sentences related to standardization on Multicast CIDs and ongoing works in WiMAX in the second paragraph were edited out because it is confusing and inappropriate. 4. I-D nits checking & editorial clarification Special thanks to D.J. Johnston
Step forward I-D got meanwhile a lot of reviews –Very stable basic concept –A lot of text tweaking out of the reviews Conclusion: I-D is ready for IESG review