59
2.12
Spanning Tree
IEEE Standard Spanning tree functionality is provided. The
S
panning
T
ree
P
rotocol (
STP
) provides a
function of preventing switching loops and ensuring broadcast radiation. A switching loop occurs in a
network when there are multiple connections between two network switches or two ports. The loop
creates a broadcast radiation, which is the accumulation of broadcast and multicast traffics on a
computer network. As broadcast and multicast messages are forwarded by bridges/switches to every
port, the bridges/switches will repeatedly rebroadcast the broadcast messages, and this can flood the
network. STP creates a spanning tree and disables those links of the network that are part of the
spanning tree, which leaves only a single active path between two nodes. This function avoids
flooding and increases network efficiency.
RSTP
(
R
apid
S
panning
T
ree
P
rotocol) is also supported. It is an evolution of the STP. It has a slightly
changed topology, which helps to provide a much faster spanning tree convergence.
2.12.1
Spanning Tree Setting
Figure 2.71 Network redundancy setting page
In this setting, users can set the network redundancy mode as shown in Figure 2.71. There are three
options, which are STP/RSTP/MSTP.
Summary of Contents for EH7506
Page 35: ...29 Figure 2 40 Mapping Table of DSCP ECN page...
Page 53: ...47 2 9 1 GVRP Settings Figure 2 62 GVRP setting page...
Page 55: ...49 2 9 2 GMRP Settings Figure 2 63 GMRP setting page...
Page 76: ...70...
Page 90: ...84 Figure 2 97 iA Ring Example Topology...
Page 98: ...92 Management Address Indicates neighbor s management IP address...
Page 110: ...104 Figure 2 115 Reboot page...
Page 117: ...111...
