Enterasys Networks 2E253, 2H253, 2H252, 2H258 manual StpLegacyPathCost, Recommended, Value

Built-in Commands

stpLegacyPathCost

Description: Enables or disables the use of 802.1D or 802.1t Path Cost bridging values on the device. The default is legacy 802.1D standard Path Cost values.

NOTE: When connecting ports between devices, it is recommended that the devices are all set to run either 802.1D or 802.1t. The path costs must be consistent between bridge ports of all the devices.

Table 11-2shows the path cost values when running 802.1t bridging.

Table 11-2 Path Cost Parameter Values
Link	Recommended	Recommended	Range
Speed	Value	Range
10 Mb/s	2,000,000*	200,000-	1-200,000,000
		20,000,000
100 Mb/s	200,000*	20,000-	1-200,000,000
		2,000,000
1 Gb/s	20,000	2,000- 200,000	1-200,000,000
10 Gb/s	2,000	200-20,000	1-200,000,000

*Bridges conforming to IEEE Std 802.1D, 1998 Edition, i.e., that support only 16-bit values for Path Cost, must use 65,535 as the Path Cost for these link speeds when used in conjunction with Bridges that support IEEE Std 802.1t (32 bit) Path Cost values.

Syntax: stpLegacyPathCost [ enable disable status]

Options: enable – Enables the device to use spanning tree legacy 802.1D Path Cost values.

disable – Returns the device to the default setting of using the spanning tree 802.1t Path Cost values.

status – Displays the current status of the Path Cost setting (enabled or disabled).

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