Enterasys Networks 5G1XX, 5H1XX manual Spanning Tree Protocol Parameters

Spanning Tree Protocol Parameters

A.3 SPANNING TREE PROTOCOL PARAMETERS

Several configuration parameters control the operation of the Spanning Tree Protocol. Table A-1describes the parameters and lists the switch default settings for each parameter.

NOTE: You can cause serious network performance degradation if you do not fully understand Spanning Tree concepts. Be sure to consult personnel experienced with this process prior to configuring Spanning Tree parameters.

Table A-1 Spanning Tree Protocol Defaults

Parameter	Description	Default Value
Bridge Group	Unique MAC group address, recognized by all bridges in	None
Address	the network.
Bridge	Identifier for each bridge. This parameter consists of two	32768 (bridge
Identifier	parts: a 16-bit bridge priority and a 48-bit network adapter	priority)
	address. Ports are numbered in absolute numbers starting
	from 1 regardless of their bridge attachment. The network
	adapter address is the same address as the first port of the
	bridge.
Port Identifier	Identifies each port of each bridge, with an incremental
	default value given for each port.
	Port 1 -32768 Port 9 -32776 Port17-32784
	Port 2 -32769 Port 10 -32777 Port 18 -32785
	Port 3 -32770 Port 11 -32778 Port 19 -32786
	Port 4 -32771 Port 12 -32779 Port 20 -32787
	Port 5 -32772 Port 13 -32780 Port 21 -32788
	Port 6 -32773 Port 14 -32781 Port 22 -32789
	Port 7 -32774 Port 15 -32782 Port 23 -32790
	Port 8 -32775 Port 16 -32783 Port 24 -32791
Port Priority	Indicates the priority of a specific port in relation to	128
	other ports.

Spanning Tree Concepts A-3