ZyXEL Communications XGS2220 Series - Page 342

Chapter 53 Spanning Tree Protocol
XGS2220 Series User’s Guide
342
The Switch defines the following Short mode path costs.
The Switch defines the following Long mode path costs.
If you do not configure the auto path cost values for User-defined mode, the Switch uses the following
default values.
Use the this screen to activate one of the STP modes on the Switch. Click SWITCHING > Spanning Tree
Protocol > Spanning Tree Setup to display the screen as shown.
Table 180 Auto Path Cost Mode: Short
LINK SPEED AUTO PATH COST VALUE
Up to 4 Mbps 250
Up to 10 Mbps 100
Up to 16 Mbps 62
Up to 100 Mbps 19
Up to 1 Gbps 4
Up to 10 Gbps 2
More than 10 Gbps 1
Table 181 Auto Path Cost Mode: Long
LINK SPEED AUTO PATH COST VALUE
Up to 10 Mbps 2000000
Up to 100 Mbps 200000
Up to 1 Gbps 20000
Up to 2.5 Gbps 8000
Up to 5 Gbps 4000
Up to 10 Gbps 2000
More than 10 Gbps 200
Table 182 Auto Path Cost Mode: User-defined
LINK SPEED AUTO PATH COST VALUE
Up to 10 Mbps 2000000
Up to 100 Mbps 200000
Up to 1 Gbps 20000
Up to 2.5 Gbps 8000
Up to 5 Gbps 4000
More than 5 Gbps 2000