Intel ZT 8101 10/100 user manual Switch IP and MAC Addresses, Port Configurations, Flow Control

Switch Management and Operating Concepts

•Reset to factory defaults—The switch includes an option that allows you to reset the configuration to the factory defaults. You can select to reset the IP address or save your configured IP address.

Switch IP and MAC Addresses

Each switch must be assigned its own IP Address. The switch's default IP address is 10.90.90.90. You can change the default switch IP address to meet the specification of your networking address scheme.

The switch is also assigned a unique MAC address by the factory. You cannot change this MAC address.

In addition, you can also set an IP address for a gateway router. This becomes necessary when the network management station is located on a different IP network from the switch, making it necessary for management packets to go through a router to reach the network manager, and vice versa.

For security, you can list the IP addresses of the network management stations that you want to manage the switch. If you list IP addresses, only those workstations have access; all others will be denied.

You can also configure a VLAN for the network that the management stations are on, and then configure the switch for this VLAN.

Port Configurations

By default, the switch is configured to use auto-negotiation to determine each port's speed and duplex setting. The user can modify this and configure a port to use a specified configuration. The Ethernet ports have the following characteristics:

Ethernet Port	Link Speed	Duplex
Fast Ethernet (10/100)	10/100 Mbps	Half, Full
Gigabit Ethernet	100 Mbps	Half, Full
Gigabit Ethernet	1000 Mbps	Full

Flow Control

All ports have a traffic limit because they have a limited buffer space to receive incoming frames. Upon reaching the limit, a port either starts dropping packets or triggers flow control. The ZT 8101 switch uses the following methods for flow control:

•802.3x flow control—The switch sends PAUSE frames, which request remote ports to delay sending packets for a period of time. The sending ports suspend further frame transmission until the specified time period has elapsed.

•802.3x compliant flow control—The switch does not send PAUSE frames, but it does respond to them.

24 Intel® NetStructure™ ZT 8101 10/100 Ethernet Switch User’s Manual