Stp Global Settings - Planet Networking & Communication LRP-822CS User Manual

The switch with the lowest Bridge ID (switch C) was elected the root bridge, and the ports were selected to give a high port cost
between switches B and C. The two (optional) Gigabit ports (default port cost = 20,000) on switch A are connected to one
(optional) Gigabit port on both switch B and C. The redundant link between switch B and C is deliberately chosen as a 100
Mbps Fast Ethernet link (default port cost = 200,000). Gigabit ports could be used, but the port cost should be increased from
the default to ensure that the link between switch B and switch C is the blocked link.
This section has the following items:

STP Global Setting

STP Port Setting

CIST Instance Setting

CIST Port Setting

MST Instance Setting

MST Port Setting

STP Statistics

4.6.2 STP Global Settings

This page allows you to configure STP sy
L RP Managed Switch support the following Spanning Tree Protocols:
‧ Compatible -- Spanning Tree Protocol (STP): Provides a single path between end stations, avoiding and
eliminating loops.
‧ Normal -- Rapid Spanning Tree Protocol (RSTP): Detects and uses network topologies that provide faster
spanning tree convergence, without creating forwarding loops.
‧ Extension – Multiple Spanning Tree Protocol (MSTP): Defines an extension to RSTP to further develop the
usefulness of virtual LANs (VLANs). This "Per-VLAN" Multiple Spanning Tree Protocol configures a separate
Spanning Tree for each VLAN group and blocks all but one of the possible alternate paths within each Spanning
Tree.
The STP Global Settings screens in
Configures STP system settings
Configures per port STP setting
Configures system configuration
Configures CIST port setting
Configures each MST instance setting
Configures per port MST setting
Displays the STP statistics
stem settings. The settings are used by all ST
Figure 4-6-4 & Figure 4-6-5
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User's Manual of LRP-822CS/LRP-1622CS
P Bridge instances in the Switch. The
appear.