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Configuring STA for Ports or Modules
The following figure and table describe STA configuration for ports or modules. (Note that the Spanning Tree Configuration screen for the expansion slots also indicates module type.)
Vertical Horizon Local Management
Fast forwarding mode of all ports : [Enable] [Disable]
Spanning Tree Port Configuration : Unit 1 Port
Port | Type Priority | Cost | FastForwarding | |
| ||||
1 | 10/100TX | 128 | 19 | ENABLED |
2 | 10/100TX | 128 | 19 | ENABLED |
3 | 10/100TX | 128 | 19 | ENABLED |
4 | 10/100TX | 128 | 19 | ENABLED |
5 | 10/100TX | 128 | 19 | ENABLED |
6 | 10/100TX | 128 | 19 | ENABLED |
7 | 10/100TX | 128 | 19 | ENABLED |
8 | 10/100TX | 128 | 19 | ENABLED |
9 | 10/100TX | 128 | 19 | ENABLED |
10 | 10/100TX | 128 | 19 | ENABLED |
11 | 10/100TX | 128 | 19 | ENABLED |
12 | 10/100TX | 128 | 19 | ENABLED |
<APPLY> <OK> <CANCEL> <PREV UNIT> <NEXT UNIT> <PREV PAGE> <NEXT PAGE>
Use <TAB> or arrow keys to move, other keys to make changes.
Figure 2-24. Spanning Tree Port Configuration
Parameter | Default | Description |
Fast forwarding mode | ENABLED | Allows you to enable or disable fast forwarding for |
of all ports |
| all ports on the switch. |
Type |
| Shows 10/100TX, 100FX, 1000LX or 1000SX port. |
Priority | 128 | Defines the priority for the use of a port in the STA |
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| algorithm. If the path cost for all ports on a switch |
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| are the same, the port with the highest priority (i.e., |
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| lowest value) will be configured as an active link in |
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| the spanning tree. Where more than one port is |
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| assigned the highest priority, the port with lowest |
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| numeric identifier will be enabled. |
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| The range is 0 - 255. |
(Path) Cost | 100/19/4 | This parameter is used by the STA algorithm to |
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| determine the best path between devices. |
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| Therefore, lower values should be assigned to |
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| ports attached to faster media, and higher values |
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| assigned to ports with slower media. |
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| (Path cost takes precedence over port priority.) |
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| The default and recommended range is: |
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| Ethernet: 100 (50~600) |
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| Fast Ethernet: 19 (10~60) |
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| Gigabit Ethernet: 4 (3~10) |
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| The full range is 1 - 65535. |
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