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This draft proposes a novel forwarding mechanism for Intra-NE routing, addressing issues of FE topology awareness and routing table efficiency in Network Elements with multiple CEs and FEs. It discusses routing table construction, security considerations, and potential enhancements. Input on this work is welcome.
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Intra-NE Routing Mechanismdraft-guo-forces-routing-01.txt Xiaoyi Guo(xiaotian@huawei.com) 64th IETF Meeting, Vancouver
Forwarding mechanism Motivation • One NE may include many CEs and FEs, one of the forwarding path may cross many FEs ,not cross only one FE. • FEs should not know all the topology of the NE, so the routing table in FEs should not include all the NE routing information.
CE Forwarding mechanism 2 routing tables in CE -- Edge FE Intra-FE Edge FE FE1 FE3 FE2 Intra-NE RT RT
Forwarding mechanism Data forwarding • ----- Edge FE ----FE ---Edge FE -- • ( RT ) ( Intra-NE RT ) ( RT ) • We focus on Intra-NE forwarding mechanism
Forwarding mechanism Routing table construction: • CE side: SPF algorithm Full topology --------- Intra-NE Routing Table routing protocols Routing information ----normal Routing table • FE side : CE send RT to each FE , not the full routing table
Next .. • Consideration about the security? • Could one hop forwarding use this mechanism ? • Need the new LFBs construction? • More details of this mechanism need to considering and working out ….
Other questions? • Interested in this work?