Nokia Network Voyager for IPSO 4.0 Reference Guide 33Events that can affect the status of interfaces: If you hot-insert a device (not power down the unit first), it appears in the lists of interfacesimmediately (after a page refresh) on the configuration pages. If you hot-pull a device, and no configuration exists for it, it disappears from the lists ofinterfaces immediately. If you hot-pull a device, and it had a configuration, its configuration details continue to bedisplayed and can be changed even after a reboot. Hotswapped interfaces that are fully seated in a router’s chassis are represented in theifTable (MIB-II), ipsoCardTable (IP440-IPSO-System-MIB), and the hrNetworkTable(Host-Resources-MIB). Unwanted configurations of absent devices can be deleted, which removes the physical andlogical interfaces from all interface lists.Configuring Tunnel InterfacesTunnel interfaces are used to encapsulate protocols inside IP packets. Use tunneling to: Send network protocols over IP networks that don’t support them. Encapsulate and encrypt private data to send over a public IP network.Create a tunnel logical interface by specifying an encapsulation type. Use Network Voyager toset the encapsulation type. Network Voyager supports two encapsulation types, DVMRP andGRE.The tunnel logical interface name has the form:tun0cwhere (channel number) is an instantiation identifier.Table 2 Interface Status IndicatorsIndicator DescriptionNone If no color indication is displayed, the physical interface is disabled. To enable the interface,click on the physical interface name to go to its configuration page.Blue The device corresponding to this physical interface has been removed from the system, butits configuration remains. To delete its configuration, click on the physical interface name togo to its configuration page.Red The physical interface is enabled, but the device does not detect a connection to thenetwork.Green The physical interface is ready for use. It is enabled and connected to the network.
