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Ingress Filtering
Ingress filtering allows frames that belong to a specific VLAN to be forwarded if the port
belongs to that VLAN. The switch has two ingress filtering rules. They are as follows:
Ingress Filtering Rule 1: Only forward packets with VIDs matching this port’s configured
VID.
Ingress Filtering Rule 2: Drop untagged frames.
5.4.8 Spanning Tree
The spanning-tree protocol (STP) is a standardized method (IEEE 802.1D) for avoiding loops in
switched networks. Enabling STP will ensure that only one path at a time is active between any
two nodes on the network. You can enable the spanning-tree protocol on the “Switch Settings”
page in the “Advanced” section. Select “Enable Spanning-Tree protocol”. We recommend that
you enable STP on all switches to ensure a single active path on the network.
1. You can view spanning tree information about the Root Bridge. A sample is shown below.
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