3 Configuring the Switch

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Eth 1/ 1 information

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Admin status:

enabled

Role:

root

State:

forwarding

External admin path cost:

10000

Internal admin path cost:

10000

External oper path cost:

10000

Internal oper path cost:

10000

Priority:

128

Designated cost:

0

Designated port:

128.4

Designated root:

32768.0.0000E8AAAA00

Designated bridge:

32768.0.0000E8AAAA00

Fast forwarding:

disabled

Forward transitions:

2

Admin edge port:

disabled

Oper edge port:

disabled

Admin Link type:

auto

Oper Link type:

point-to-point

.Spanning Tree Status:

enabled

.

 

.

 

Configuring Interface Settings for MSTP

You can configure the STA interface settings for an MST Instance using the MSTP Port Configuration and MSTP Trunk Configuration pages.

Field Attributes

The following attributes are read-only and cannot be changed:

•Port – Port identifier. (Range: 1-8)

•STA State – Displays current state of this port within the Spanning Tree. (See Displaying Interface Settings on page 3-120for additional information.)

•Discarding - Port receives STA configuration messages, but does not forward packets.

•Learning - Port has transmitted configuration messages for an interval set by the Forward Delay parameter without receiving contradictory information. Port address table is cleared, and the port begins learning addresses.

•Forwarding - Port forwards packets, and continues learning addresses.

•Trunk – Indicates if a port is a member of a trunk. (STA Port Configuration only)

The following interface attributes can be configured:

•MST Instance ID – Instance identifier to configure. (Range: 0-4094; Default: 0)

•Priority – Defines the priority used for this port in the Spanning Tree Protocol. If the path cost for all ports on a switch are the same, the port with the highest priority (i.e., lowest value) will be configured as an active link in the Spanning Tree. This makes a port with higher priority less likely to be blocked if the Spanning Tree

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