SMC Networks 6709FL2 INT - FICHE TECHNIQUE, Руководство по управлению

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C
ONFIGURING THE
S
WITCH
3-30
not overlap, but still need to communicate, you can connect them by using
a Layer-3 router or switch.
Protocol VLANs
– This switch also supports VLANs based on specific
protocol types, such as IPX and AppleTalk. When a protocol is bound to a
VLAN, the switch will only forward packets carrying the specified protocol
tag. However, regardless of the protocol type, remember that traffic must
still be passed though a router to reach a different subnet.
Automatic VLAN Registration
– GVRP (GARP VLAN Registration
Protocol) defines a system whereby the switch can automatically learn the
VLANs to which each endstation should be assigned. If an endstation (or
its network adapter) supports the IEEE 802.1Q VLAN protocol, it can be
configured to broadcast a message to your network indicating the VLAN
groups it wants to join. When this switch receives these messages, it will
automatically place the receiving port in the specified VLANs and forward
the message to all other ports. When the message arrives at another switch
that supports GVRP, it will also place the receiving port in the specified
VLANs and pass the message on to all other ports. VLAN requirements
are propagated in this way throughout the network. This allows
GVRP-compliant devices to be automatically configured for VLAN
groups based solely on endstation requests.
To implement GVRP in a network, first add the host devices to the
required VLANs (using the operating system or other application
software), so that these VLANs can be propagated onto the network. For
both the edge switches attached directly to these hosts, and core switches
in the network, enable GVRP on the links between these devices. You
should also determine security boundaries in the network and disable
GVRP on ports to prevent advertisements from being propagated.
Note:
If you have host devices that do not support GVRP, you should
configure port-based or untagged VLANs for the switch ports
connected to these devices. But you can still enable GVRP on
network ports for these edge switches, as well as on the core
switches in the network.