> > So FCoE cannot say "fcoe_mtu = min(OPTIMAL_FCOEMTU,netdev->mtu)" and > > send-down frames based on that? > >I think the point is that FCoE wants to use OPTIMAL_FCOEMTU (2KB + a >bit >for headers) even when netdev->mtu is 1500. (eg datacenter network >supports baby jumbo frames so FCoE traffic that stays within the >network >should use OPTIMAL_FCOEMTU, while lots of IP traffic is going out onto >a >1500-byte MTU campus and having TCP doing lots of PMTU discovery is a >pain) > > - R. Yes, exactly, thanks for the clarification. Also, since FC max payload of 2112 is not going to change, I guess the OPTIMAL_FCOEMTU is probably going to stay unchanged forever. Thanks. yi -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
