Cabletron Systems 2E43-27R, 2E42-27R manual Switch Configuration Screen

Switch Configuration Screen

Number of Ports (Read-Only)

Displays the total number of switched ports on the 2E4X-27. Depending on the number of optional interfaces installed, there can be up to 27 ports.

Type of STA (Toggle)

Allows the user to set the method that switches use to decide which switch is the controlling (Root) switch when two or more switches exist in parallel (Spanning Tree Algorithm). Valid entries include IEEE, DEC, and None. To set the STA, refer to Section 5.10.1.

Age Time (Modifiable)

Allows the user to set the amount of time (in seconds) that the 2E4X-27 keeps an address in its switch table before discarding it. An address is automatically discarded when a valid frame is not received from that address within the time specified in the Age Time field. To change the Age Time field from the default value of 300 seconds, refer to Section 5.10.2.

Port # (Read-Only)

Lists each switched port on the device. If the number of ports is greater than eight, then the additional ports are listed on subsequent screens.

MAC Address (Read-Only)

Displays the base hardware address assigned to each listed port.

State (Read-Only)

Disabled: Management disabled this interface. No traffic is received or forwarded while the interface is disabled.

Listening: The switch is not adding information to the Transparent Database. The switch is monitoring BPDU traffic while preparing to move from the learning to the forwarding state.

Learning: The switch is learning the addresses on this interface. The switch enters the learning state when the Transparent Database is created (during start-up or after being deleted), or when the Spanning Tree Algorithm detects a network topology change.

Forwarding: The switch is operating and this interface is forwarding traffic.

Standby: This interface will not forward any traffic through the switch because a loop condition has been detected by the STA.

2E42-27/2E42-27R/2E43-27/2E43-27R User’s Guide 5-37