> I am working on a project that includes the use of both IPMP and VLAN > tagging. An interesting point of discussion that has come up consists > of what is the official supported configuration by Sun.
Ron, We support both configurations. However, if you put the test addresses on the physical interface, you run a much greater risk of applications (especially third-party) using the test addresses as data addresses, which will appear to work until the interface fails (and the application fails along with it). This is because SIOCG[L]IFCONF will return the addresses in order (on each interface), and IPMP-unaware applications will simply use the first IFF_UP|IFF_RUNNING address, which will be the test address if you put it on the physical interface. Thus, for now, I'd recommend putting the test addresses on the logical interface instead. However, the IPMP Rearchitecture will render this issue moot, since IPMP-unaware applications will no longer discover the test addresses via SIOCG[L]IFCONF. At that point, we will recommend putting the test address on the physical interface since it will lead to a slightly simpler configuration (otherwise, the physical interface would end up with a 0.0.0.0 placeholder address). > BTW, the rearchitecture is impressive! Thanks! -- meem _______________________________________________ networking-discuss mailing list [email protected]
