SMC Networks TigerSwitch 10/100 SMC6724L2, Руководство по управлению

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VLANs provide greater network efficiency by reducing broadcast
traffic, and allow you to make network changes without having to
update IP addresses or IP subnets. VLANs inherently provide a
high level of network security since traffic must pass through a
configured Layer 3 link to reach a different VLAN.
This switch supports the following VLAN features:
• Up to 256 VLANs based on the IEEE 802.1Q standard
• Distributed VLAN learning across multiple switches using
explicit or implicit tagging and GVRP protocol
• Port overlapping, allowing a port to participate in multiple
VLANs
• End stations can belong to multiple VLANs
• Passing traffic between VLAN-aware and VLAN-unaware
devices
• Priority tagging
Assigning Ports to VLANs
Before enabling VLANs for the switch, you must first assign each
port to the VLAN group(s) in which it will participate (page 2-47
and 3-40). By default all ports are assigned to VLAN 1 as untagged
ports. Add a port as a tagged port (i.e., a port attached to a
VLAN-aware device) if you want it to carry traffic for one or more
VLANs and if the device at the other end of the link also supports
VLANs (page 2-43 and 3-36). Then assign the port at the other end
of the link to the same VLAN(s). However, if you want a port on
this switch to participate in one or more VLANs, but the device at
the other end of the link does not support VLANs, then you must
add this port as an untagged port (that is, a port attached to a
VLAN-unaware device).