[EMAIL PROTECTED] wrote: >> Noticed that the 3750 ios 12.2(46)SE release supports the disabling of >> mac address learning per vlan. Does anyone have any experience with >> this release yet? >> >> The feature seems to have been introduced earlier in the 3650s and has >> obviously been in ME switches for a while. > > The feature has been there longer, in the form of an RSPAN-enabled VLAN. > > Steinar Haug, Nethelp consulting, [EMAIL PROTECTED] >
Thanks Steinar, I think there are a few differences between these. The command docs say the following about RSPAN VLANs: - All traffic in the RSPAN VLAN is always flooded. - No MAC address learning occurs on the RSPAN VLAN. - RSPAN VLAN traffic only flows on trunk ports. - RSPAN VLANs must be configured in VLAN configuration mode by using the remote-span VLAN configuration mode command. - STP can run on RSPAN VLAN trunks but not on SPAN destination ports. - An RSPAN VLAN cannot be a private-VLAN primary or secondary VLAN. The first and third points suggests that for RSPAN VLANs you: - cannot use static mac assignments - cannot use access ports Paul. -- HEAnet Limited Ireland's Education & Research Network 5 George's Dock, IFSC, Dublin 1, Ireland Tel: +353.1.6609040 Web: http://www.heanet.ie Company registered in Ireland: 275301 Please consider the environment before printing this e-mail. _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/