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Link Aggregation sublayer block diagram with DAS

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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Link Aggregation sublayer block diagram with DAS

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  1. Link Aggregation sublayer block diagram with DAS Ting Ao (ao.ting@zte.com.cn)

  2. Proposal in July meeting • http://www.ieee802.org/1/files/public/docs2011/axbq-tinga-link-aggregation-sublayer-0711-v00.pptx

  3. 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.

  4. 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.

  5. 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.

  6. Thanks!

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