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C
ONFIGURING
THE
S
WITCH
2-64
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 then
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 being propagated, or forbid
ports from joining restricted VLANs.
Note:
If you have host devices that do not support GVRP, you must
configure static VLANs for the switch ports connected to these
devices. You also still need to enable GVRP on these edge
switches, as well as on the core switches in the network.
Forwarding Tagged/Untagged Frames
If you want to create a small port-based VLAN for devices attached
directly to a single switch, you can assign ports to the same untagged
VLAN. However, to participate in a VLAN group that crosses several
switches, you need to create a VLAN for that group and enable tagging on
all ports.
Ports can be assigned to multiple tagged or untagged VLANs. Each port
on the switch is therefore capable of passing tagged or untagged frames.
When forwarding a frame from this switch along a path that contains any
VLAN-aware devices, the switch should include VLAN tags. When
Summary of Contents for TigerSwitch 100
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Page 30: ...SWITCH MANAGEMENT 1 16...
Page 314: ...COMMAND LINE INTERFACE 3 170...
Page 316: ...TROUBLESHOOTING A 2...
Page 330: ...GLOSSARY Glossary 8...
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