On 19/02/2016 14:08, Martin Schiller wrote: > On 02/19/2016 at 11:27 AM, John Crispin wrote: >> >> >> On 19/02/2016 08:29, Martin Schiller wrote: >>> On 02/19/2016 at 6:32 AM, John Crispin wrote: >>>> >>>> >>>> On 18/02/2016 14:13, Martin Schiller wrote: >>>>> By setting the FID of a VLAN group to a value other then the default (0) >>>>> it >>>>> is possible to switch from Shared VLAN Learning to Independant VLAN >>>> Learning. >>>>> >>>> >>>> and what are the pro / cons of doing so ? >>> >>> Independant: >>> On incoming VLAN traffic the source MAC address is learned but is not >> made >>> available for other VLANs (with other FIDs). >>> >>> Shared: >>> The learned MAC address information is shared between multiple VLANs >>> (with the same FID). >>> >>> This feature is used for example to separate the LAN and WAN interfaces. >> >> so if i am not misunderstanding this, we want one fid / vlan. can we >> just write the pvid into this field unconditionally > > No, in the given "best practice", the cpu-vlan and the lan-vlan share 1 fid, > and the wan-vlan has it independant one. > > But i don't know if it is really necessary, that the learned MAC address > information is shared between cpu-vlan and lan-vlan. > > The datasheets says, that the shared mode is useful for complex VLAN > traffic patterns without forcing the switch to flood the unicast traffic in > each direction. > > When we assume, that it will also be ok that we simply use one unique > fid /vlan group, than it would be the best to use the vlan group index as fid, > because fid has a range of 0-63 and we have vlan 0-63. > > The pvid is an port option, which is not unique and can get values from 0 - > 4095. >
ok, i assume this comes from the competence center ? can you tell me the exact file name and release date so i can go looking for the PDF ? _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
