Enterasys Networks X-PeditionTM manual Configuring the LAN, MIB Statistics

Configuring the LAN

•Maximum Transmission Unit (MTU) - all frames less than or equal to 1518 bytes are accepted. MTU size is set using the ip mtu command.

•Speed is enabled using the speed command with the following options:

–10 - 10 Mbps

–100 - 100 Mbps

–1000 - 1000 Mbps

–Auto - Auto-negotiate (default)

•Statistics - all MIB-II interface statistics are supported

•Clear commands such as clear counters FastEthernet and clear counters gigabitethernet, which reset the MIB-II counters, and clear interface FastEthernet and clear interface GigabitEthernet, which reset the interface counters and facilitate interface troubleshooting.

Configuring the LAN

Enter the following commands to configure FastEthernet interface 1 on network 192.57.99.32:

XSR(config)#interface fastethernet 1

XSR(config-if<F1>)#ip address 192.57.99.32 255.255.255.0

XSR(config-if<F1>)#no shutdown

Enter the following commands to configure GigabitEthernet interface 2 on network 192.168.57.12:

XSR(config)#interface gigabitethernet 2

XSR(config-if<G2>)#ip address 192.168.57.12 255.255.255.0

XSR(config-if<G2>)#no shutdown

MIB Statistics

The following table reflects MIB-II (RFC-1213) port statistics collected by a LAN interface.

Table 3-1 MIB-II Interface Statistics

Variable	Description
IfDescr	Description of the interface.
IfType	Type of the interface (set once, and never changed).
IfMtu	Size of the largest packet that can be sent/received on the interface, specified in bytes.
IfSpeed	Estimate of the interface's current bandwidth in kilobits per second (10000 or 100000)
IfPhysAddress	Interface's address at its protocol sub-layer (the MAC address).
ifAdminStatus	Desired state for the interface.
ifOperStatus	Current operational status of the interface.
ifLastChange	Value of sysUpTime when the interface entered its current operational state.
IfInOctets	Sum of octets received on the interface.
ifInUcastPkts	Sum of subnetwork-unicast packets delivered to a higher layer protocol.

3-2 Managing LAN/WAN Interfaces