Allied Telesis AT-S60 - Manual (Page 407)

AT-S60 Management Software User’s Guide
Section IV: VLANs 407
❑ The introduction of a router into your network could create
security issues from unauthorized access to your network.
❑ A VLAN that spans several switches requires a port on each switch
for the interconnection of the various parts of the VLAN. For
example, a VLAN that spans three switches requires one port on
each switch to interconnect the various sections of the VLAN. In
network configurations where there are many individual VLANs
that span switches, many ports can end up being used
ineffectively just to interconnect the various VLANs.