When you display VLAN statistics on Multilayer Switching Modules, the module-generated statistics are valid only under either of these conditions:

• When the VLANs are defined for the same protocol type (or the type unspecified, for port-based VLANs) but do not have any overlapping ports (for example, an IP VLAN1 with ports 1-6 and IP VLAN2 with ports 7-12).

• If the VLANs are explicitly defined for different protocol types but may have overlapping ports (for example, an IP VLAN and an IPX VLAN that both use ports 2-4).