Specifications

Chapter 3: Layer 2 Features
Extreme Networks EAS 100-24t Switch Software Manual
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GVRP Settings
This window allows the user to determine whether the Switch will share its VLAN configuration
information with other GARP VLAN Registration Protocol (GVRP) enabled switches. In addition,
Ingress Checking can be used to limit traffic by filtering incoming packets whose PVID do not match
the PVID of the port. Results can be seen in the table under the configuration settings, as seen below.
To view this window, click L2 Features > GVRP Settings:
In this window, the following parameters can be configured:
Parameter Description
GVRP State Settings Click the radio buttons to enable or disable the GVRP global state settings.
From Port/To Port These two fields allow you to specify the range of ports that will be included in
the Port-based VLAN that you are creating using the 802.1Q Port Settings
window.
PVID (1-4094) Enter a PVID assignment for each port, which may be manually assigned to a
VLAN when created in the 802.1Q Port Settings table. The Switch's default is
to assign all ports to the default VLAN with a VID of 1. The PVID is used by
the port to tag outgoing, untagged packets, and to make filtering decisions
about incoming packets. If the port is specified to accept only tagged frames -
as tagging, and an untagged packet is forwarded to the port for transmission,
the port will add an 802.1Q tag using the PVID to write the VID in the tag.
When the packet arrives at its destination, the receiving device will use the
PVID to make VLAN forwarding decisions. If the port receives a packet, and
Ingress filtering is enabled, the port will compare the VID of the incoming
packet to its PVID. If the two are unequal, the port will drop the packet. If the
two are equal, the port will receive the packet.
GVRP The Group VLAN Registration Protocol (GVRP) enables the port to
dynamically become a member of a VLAN. GVRP is Disabled by default.