Nokia IPSO 4.0 Configuring Tunnel Interfaces, Interface Status Indicators, Indicator Description

Table 2 Interface Status Indicators

Indicator	Description
None	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, but
	its configuration remains. To delete its configuration, click on the physical interface name to
	go to its configuration page.
Red	The physical interface is enabled, but the device does not detect a connection to the
	network.
Green	The physical interface is ready for use. It is enabled and connected to the network.

Events 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 interfaces immediately (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 of interfaces immediately.

„If you hot-pull a device, and it had a configuration, its configuration details continue to be displayed and can be changed even after a reboot.

„Hotswapped interfaces that are fully seated in a router’s chassis are represented in the ifTable (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 and logical interfaces from all interface lists.

Configuring Tunnel Interfaces

Tunnel 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 to set the encapsulation type. Network Voyager supports two encapsulation types, DVMRP and GRE.

The tunnel logical interface name has the form:

tun0c<chan>

where <chan> (channel number) is an instantiation identifier.

Nokia Network Voyager for IPSO 4.0 Reference Guide 33