Asante Technologies 40240/40480-10G 10-21, Configuring Interface Settings for MSTP,

* Use the STA Configuration screen (page 10-6) to set the path cost method.
Web – Click Spanning Tree, MSTP, Port Configuration or Trunk Configuration. Enter
the priority and path cost for an interface, and click Apply.
Figure 10-11 MSTP Port Configuration
10-21
Protocol is detecting network loops. Where more than one port is assigne d the
highest priority, the port with lowest numeric identifier will be enabled.
• Default: 128
• Range: 0-240, in steps of 16
• Admin MST Path Cost – This parameter is used by the MST P to determin e the
best path between devices. Therefore, lower values should be assigned to ports
attached to faster media, and higher values assigned to port s with slower media .
(Path cost takes precedence over port priority.) Note that whe n the Pa th Cost
Method is set to short (page 3-63), the maximum path cost is 65,535.
By default, the system automatically detects the s peed an d du plex mode used on
each port, and configures the path cost according to the values shown below. Path
cost “0” is used to indicate auto-configuration mode.
Table 10-9 Recommended STA Path Cost Range
Port Type
Gigabit Ethernet
10G Ethernet
Short Path Cost* Long Path Cost*
(IEEE 802.1D-1998) (802.1D-2004)
2,000-65,535 2,000-200,000
200-20,000 200-20,000
* Use the STA Configuration screen (page 10-6) to set the path cost method.
Table 10-10 Default STA Path Costs
Port Type
Gigabit Ethernet
10G Ethernet
Short Path Cost
*
(IEEE 802.1D-1998)
10,000
1,000
Long Path Cost
*
(802.1D-2004)
10,000
1,000
Configuring Interface Settings for MSTP
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