SmartBridges sB3210 manual Bridge Configuration, Configuring Spanning Tree Protocol STP

i n t e l l i g e n t w i r e l e s s p l a t f o r m

2.5. Bridge Configuration

In Bridge mode the airPoint™ unit acts as a transparent bridge between the Radio and the Ethernet interfaces. The figure below shows the bridge configuration and the bridge forwarding table information. The STP (Spanning Tree Protocol) is disabled by default.

Figure 2-10 Bridge Configuration Information

2.6. Configuring Spanning Tree Protocol (STP)

STP is a Layer 2 link management protocol that provides path redundancy while preventing loops in the network. For a Layer 2 Ethernet network to function properly, only one active path can exist between any two stations.

STP is disabled by default. The table below lists the default STP settings when the STP is enabled.

Table 2-5 Default STP Values

	Setting	Default Value	Range		Purpose
	Bridge priority	32768	0-65535		A parameter used to identify the
					root bridge in a spanning tree
					(instance of STP). The bridge
					with the lowest value has the
					highest priority and is the root
	Bridge max age	20	6-40		The interval a bridge will wait for
					a hello packet from the root
					bridge before initiating a topology
					change
	Bridge hello time	2	1-10	The interval of time between
					each configuration BPDU sent by
					the root bridge.
airPoint™ Nexus User Configuration Guide					Page 22 of 55