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1 ZlatkoAIX comentou às Link permanente

"If two LPAR are on the same internal network and the root user puts the virtual adapter in to promiscuous mode then it can see all packets. <div>&nbsp;</div> Just like a physical network." <div>&nbsp;</div> Disagree! <div>&nbsp;</div> <div>&nbsp;</div> Remember: If you have to do it, how you would do it yourself? <div>&nbsp;</div> The packets are routed by the Power Hypervisor. So it is a software routing. As a side note: there is a widespread confusion that it is done by VIOS but the latter only bridges the packets to the outside world. <div>&nbsp;</div> Now with the software routing would I bother to copy a packet from partition A to partition B to partitions C, D and E? No, I will not! I would look up the target MAC address in the Ethernet frame, and will deliver the packet only to partition B. I will not waste precious CPU time to copy it to all other vEth adapters, and will not waste their throughput with unneeded data either. <div>&nbsp;</div> The exception to the rule are Ethernet broadcast packets, for example ARP queries. They are sent to MAC address of FF:FF:FF:FF:FF:FF, and will have to be copied to all ports in the VLAN. That includes the trunk port, and the VIOS will forward the frame to the physical network. <div>&nbsp;</div> <div>&nbsp;</div> <div>&nbsp;</div> "If in doubt think: "Just like a physical network" and you will not go far wrong." <br /> Concur on that! PowerVM provides a virtual switch (on P7 more than one), not a hub. A physical switch will keep a table of MAC addresses, and will forward the packet only to the target port.