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In the RoCEv2 specification (Annex 17)

https://www.infinibandta.org/ibta-specifications-download/

the header BTH+ includes the Local Routing Header (LRH). The routing though is done with IP. Is there any use for the LRH ?

Are the source and destination local IDs used somewhere or are they set to 0 ?

Jim
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1 Answers1

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RoCEv2 packets do not include an LRH. They include an Ethernet MAC header instead, an IP header (which takes the role of the IB GRH header), a UDP header, and the BTH header: Annex 17: Figure 5 RoCEv2 Packet Format

haggai_e
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