PLANET FGSW-2620VM - Manual (Page 48)

FGSW-2620VM / FGSW-2624SF User’s Manual
Object Description
Ingress Filter Ingress filtering lets frames belonging to a specific VLAN to be forwarded if the port
belongs to that VLAN.
Enable: Forward only packets with VID matching this port's configured VID.
Disable: Disable Ingress filter function.
Acceptable Frame type ALL: Acceptable all Packet.
Tag Only: Only packet with match VLAN ID can be permission to go through the
port.
PVID Set the port VLAN ID that will be assigned to untagged traffic on a given port. This
feature is useful for accommodating devices that you want to participate in the
VLAN but that don't support tagging. The switch each port allows user to set one
VLAN ID, the range is 1~255, default VLAN ID is 1. The VLAN ID must as same as
the VLAN ID that the port belong to VLAN group, or the untagged traffic will be
dropped.
Save button Press the button to save configurations.
4.3.2 Rapid Spaning Tree
1. Spanning Tree Protocol
The IEEE 802.1D Spanning Tree Protocol and IEEE 802.1W Rapid Spanning Tree Protocol allow for the blocking of links
between switches that form loops within the network. When multiple links between switches are detected, a primary link
is established. Duplicated links are blocked from use and become standby links. The protocol allows for the duplicate
links to be used in the event of a failure of the primary link. Once the Spanning Tree Protocol is configured and enabled,
primary links are established and duplicated links are blocked automatically. The reactivation of the blocked links (at the
time of a primary link failure) is also accomplished automatically without operator intervention.
This automatic network reconfiguration provides maximum uptime to network users. However, the concepts of the
Spanning Tree Algorithm and protocol are a complicated and complex subject and must be fully researched and
understood. It is possible to cause serious degradation of the performance of the network if the Spanning Tree is
incorrectly configured. Please read the following before making any changes from the default values.
The Switch STP performs the following functions:
。 Creates a single spanning tree from any combination of switching or bridging elements.
。 Creates multiple spanning trees – from any combination of ports contained within a single switch, in user specified
groups.
。 Automatically reconfigures the spanning tree to compensate for the failure, addition, or removal of any element in
the tree.
。 Reconfigures the spanning tree without operator intervention.
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