Are there any interoperability restrictions or issues when interconnecting a 1600m/2400m/2424m/25xx/4000m/8000m switch and a Series 5300xl switch?
These two switch families have significantly different architectures. The 5300xl series switches use a multiple forwarding database utilizing a single MAC address and multiple VIDs. Switches using a multiple forwarding database can properly interpret multiple occurrences of the same MAC address received from the same device, but on different ports belonging to different VLANs. However, switches having a single forwarding database do not have this capability and interpret multiple instances of a MAC address on different ports as a “duplicate MAC address” error condition. As a result, using a switch with a single forwarding database may have interoperability restrictions when deploying features such as multiple VLANs and XRRP.