link aggregation sublayer block diagram with das n.
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Link Aggregation sublayer block diagram with DAS - PowerPoint PPT Presentation


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Link Aggregation sublayer block diagram with DAS. Ting Ao (ao.ting@zte.com.cn). Proposal in July meeting. http://www.ieee802.org/1/files/public/docs2011/ axbq-tinga-link-aggregation-sublayer-0711-v00.pptx. Service Gateway. Action: Is configured by Gateway selection.

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proposal in july meeting
Proposal in July meeting
  • http://www.ieee802.org/1/files/public/docs2011/axbq-tinga-link-aggregation-sublayer-0711-v00.pptx
service gateway
Service Gateway
  • Action:
    • Is configured by Gateway selection.
    • Check the frames into/out of my network.
    • Judge whether the frame belong to this device.
  • With this function entity, so that:
    • Make the function entities in DAS sublayer clearer and more understandable without importing complexity.
    • Leave the Frame Collector and Dstributorunchanged AFAP.
    • In 802.1AX, Frame collector is forbidden to transmit frame to Frame distributor. The rule should not be violated in DRNI.
    • Only Service Gateway need to know to which Intra-das link the frame transmitted.
virutal aggregator multiplexer
Virutal Aggregator Multiplexer
  • Action:
    • Is created according to the aggregated links information from other nodes by DLIC.
    • Forward the traffic to other node in the same portal
  • Purpose:
    • For every device in the portal, their aggregator looks like to be same. It’s also a consistent with the Figure 7-2 in D0.3
    • Distributor can see all the aggregation links, so that link selection negotiation is getting easier.
    • We should not aggregate the Intra-das link into DLAG directly.
dlag internal coordination
DLAG Internal Coordination
  • Separate from LACP entity as a new function entity.
  • Reason:
    • Information need to coordinate is different with LACP’s
    • We can’t aggregate the intra-das link into DLAG. Otherwise, may need to change the LACP a lot?
    • LACP in DRNI is network to network, while DLIC in Portal is within my network.
    • LACPDU is transmitted on every aggregated links, while DLICPDU is transmitted only on Intra-das link.