4 Configuration D-Link DXS-1210 Series User Manual
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After clicking the VLAN Detail button, the following page will appear:
Figure 4.65 – L2 Features > VLAN Interface – VLAN Detail
After clicking the Edit button, the following window will appear. This is a dynamic window that will change
when a different VLAN Mode is selected. When Access was selected as the VLAN Mode, the following
page will appear.
Figure 4.66 – L2 Features > VLAN Interface – VLAN Detail
Port: Display the VLAN port number.
VLAN Mode: Select the VLAN mode option. Options to choose from are Access, Hybrid, and Trunk.
Acceptable Frame Type: Select the acceptable frame type behavior option. Options to choose from are
Tagged Only, Untagged Only, and Admit All.
Ingress Checking: Select to enable or disable the ingress checking function.
VID (1-4094): Enter the VLAN ID used for this configuration. This value must be between 1 and 4094.
Click the Apply button to save your settings.
Click the Back button to return to the previous page.
L2 Features > STP > STP Global Settings
The Switch implements three versions of the Spanning Tree Protocol, the Rapid Spanning Tree Protocol
(RSTP) as defined by the IEEE 802.1w specification, a version compatible with the IEEE 802.1D STP and
the Multiple Spanning Tree Protocol (MSTP) as defined by the IEEE802.1 specification. RSTP can operate
with legacy equipment implementing IEEE 802.1D, however the advantages of using RSTP will be lost.
The IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) evolved from the 802.1D STP standard. RSTP was
developed in order to overcome some limitations of STP that impede the function of some recent switching
innovations. The basic function and much of the terminology is the same as STP. Most of the settings
configured for STP are also used for RSTP. This section introduces some new Spanning Tree concepts and
illustrates the main differences between the two protocols.
The IEEE 802.1 Multiple Spanning Tree (MSTP) provides various load balancing scenarios by allowing
multiple VLANs to be mapped to a single spanning tree instance, providing multiple pathways across the
network. For example, while port A is blocked in one STP instance, the same port can be placed in the
Forwarding state in another STP instance.
By default, Rapid Spanning Tree is disabled. If enabled, the Switch will listen for BPDU packets and its
accompanying Hello packet. BPDU packets are sent even if a BPDU packet was not received. Therefore,
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