D-Link DGS-1224T - Web Smart Switch, Manual

Page: 39 / 64

33
IEEE 802.1P QoS Setting
To set the Switch QoS base on IEEE 802.1p,
Figure 23. IEEE 802.1P-based QoS setting
Spanning Tree Setting
This Switch supports the 802.1d Spanning Tree Protocol.
Every segment will have a single path to the root bridge. All
bridges listen for BPDU packets. However, BPDU packets are sent
more frequently - with every Hello packet. BPDU packets are sent
even if a BPDU packet was not received. Therefore, each link
between bridges is sensitive to the status of the link. Ultimately this
difference results in faster detection of failed links, and thus faster
topology adjustment. A draw-back of 802.1d is this absence of
immediate feedback from adjacent bridges.
Figure 24. Spanning Tree Setting