Sunfire B1600 manual Configuring Interface Connections

3.4.2Configuring Interface Connections

You can use the Port Setup page to enable/disable an interface, set auto-negotiation and the interface capabilities to advertise, or manually fix the speed, duplex mode, and flow control.

When configuring interface connections through the web interface or CLI, the following parameters are displayed or can be configured:

■Port/s – The port or aggregate link (up links NETP0 to NETP7, and down links SNP0 to SNP15).

■Port Description – The label (between 1 and 64 characters) of the interface. The default for up-link ports is External RJ-45 connector NETn. The default for down- link ports is Blade Slot n. The default for the management port is External RJ-45 connector NETMGT.

■Administrative Status – The configured state of the interface. You can disable an interface due to abnormal behavior (for example, excessive collisions), and then reenable it after the problem has been resolved. You may also disable an interface for security reasons.

■Negotiate Link Capabilities22 – Allows auto-negotiation to be enabled/disabled. When auto-negotiation is enabled, you need to specify the capabilities to be advertised. When auto-negotiation is disabled, you can force the settings for speed, mode, and flow control. The following capabilities are supported:

■10half – 10 Mbit/sec half-duplex operation

■10full – 10 Mbit/sec full-duplex operation

■100half – 100 Mbit/sec half-duplex operation

■100full – 100 Mbit/sec full-duplex operation

■1000half – 1000 Mbit/sec half-duplex operation

■1000full – 1000 Mbit/sec full-duplex operation

■symmetric (Gigabit only) – The capability to transmit and receive pause frames. When disabled, the sender and receiver auto-negotiate for asymmetric pause frames. (The switch only supports symmetric pause frames.)

■flowcontrol – Flow control

Flow control can eliminate frame loss by “blocking” traffic from end stations or segments connected directly to the switch when its buffers fill. When enabled, back pressure is used for half-duplex operation and IEEE 802.3x for full-duplex operation.

22.Auto-negotiation cannot be disabled on the down-link ports. These ports are fixed at 1000 Mbit/sec, full duplex.

3-102Sun Fire B1600 Blade System Chassis Switch Administration Guide • June 2003