Nokia Network Voyager for IPSO 4.0 Reference Guide 111connected to the backbone area. Both Nokia Platform B and Nokia Platform C are configuredwith IP addresses (10.10.10.2 and 101.10.10.1 respectively).The interfaces that comprise the virtual link between Nokia Platform A and Nokia Platform Care both configured as unnumbered. This link will fail because OSPF does not support a virtuallink that uses an unnumbered interface on either end of the link. underlying encapsulation. Formore information see RFC 2328. Any virtual link that uses OSPF must have an IP addressconfigured on both ends. The virtual link between Nokia Platform B and Nokia Platform Cfunctions because each Nokia Platform is configured with an IP address.Cisco HDLC ProtocolTo change the keepalive interval for Cisco HDLC1. Click Interfaces under Configuration > Interface Configuration in the tree view.2. Click the physical interface link to configure in the Physical column. Example: ser-s2p1.3. Enter a number in the Keepalive text box of the Physical Configuration table to configurethe Cisco HDLC keepalive interval.NokiaPlatform ANokiaPlatform BNokiaPlatform CBackboneArea 1Area 2Area 300044Virtual LinkVirtual Link10.10.10.110.10.10.2UnnumberedSerial LinkHost PC Host PCHost PCHost PC
