Transition Networks SISPM1040-182D - Manual (Page 90)

Transition Networks SISPM1040-182D
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802.1Q Configuration
„ Pull down the selection item and focus on 802.1Q, then press Apply to set the
VLAN Operation Mode in 802.1Q mode.
„ Enable GVRP Protocol: GVRP (GARP VLAN Registration Protocol) is a protocol
that facilitates control of virtual local area networks (VLANs) within a larger network.
GVRP conforms to the IEEE 802.1Q specification, which defines a method of
tagging frames with VLAN configuration data. This allows network devices to
dynamically exchange VLAN configuration information with other devices. For
example, having enabled GVRP on two switches, they are able to automatically
exchange the information of their VLAN database. Therefore, the user doesn’t need
to manually configure whether the link is trunk or hybrid, the packets belonging to
the same VLAN can communicate across switches. Tick this checkbox to enable
GVRP protocol. This checkbox is available while the VLAN Operation Mode is in
802.1Q mode.
„ Management VLAN ID: Only the VLAN members whose Untagged VID (PVID)
equals the value in this column will have permission to access the switch. The
default value is ‘0’ that means this is not enabled (all members in different VLANs
can access this switch).
„ Select the port you want to configure.
„ Link Type: There are 3 types of link type.
¾ Access Link: A segment which provides the link path for one or more stations
to the VLAN-aware device. An Access Port (untagged port), connected to the
access link, has an untagged VID (also called PVID). After an untagged frame
gets into the access port, the switch will insert a four-byte tag in the frame. The
contents of the last 12-bit of the tag is untagged VID. When this frame is sent
out through any of the access port of the same PVID, the switch will remove the
tag from the frame to recover it to what it was. Those ports of the same
untagged VID are regarded as the same VLAN group members.
Note: Because the access port doesn’t have an understanding of tagged frame, the
column field of Tagged VID is not available.
¾ Trunk Link: A segment which provides the link path for one or more VLAN-