306 Configuring ports using Device ManagerTable 138Interface tab fields for a single portField DescriptionIndex A unique value assigned to each interface. The value rangesbetween 1 and 512.Name Specifies a name for the port.Descr The description of the selected port.Type The media type of this interface.Mtu The size of the largest packet, in octets, that can be sent or receivedon the interface.PhysAddress The MAC address assigned to a particular interface.AdminStatus The current administrative state of the device, which can be one ofthe following:• up• downWhen a managed system is initialized, all interfaces start withAdminStatus in the up state. AdminStatus changes to the down state(or remains in the up state) as a result of either management actionor the configuration information available to the managed system.OperStatus The current operational state of the interface, which can be one ofthe following:• up• down• testingIf AdminStatus is up, then OperStatus should be up if the interface isready to transmit and receive network traffic. If AdminStatus is down,then OperStatus should be down. It should remain in the down stateif and only if there is a fault that prevents it from going to the up state.The testing state indicates that no operational packets can be passed.LastChange The value of sysUpTime at the time the interface entered its currentoperational state. If the current state was entered prior to the lastreinitialization of the local network management subsystem, the valueis zero.LinkTrap Specifies whether linkUp/linkDown traps should be generated forthis interface.AutoNegotiate Indicates whether this port is enabled for autonegotiation or not.AdminDuplex The current administrative duplex mode of the port (half or full).Nortel Ethernet Routing Switch 2500 SeriesOverview — System ConfigurationNN47215-500 (323162-B) 02.02 Standard4.1 19 November 2007Copyright © 2007, Nortel Networks.