The IP prefix for the LDP based LSP for this OAM LSP Ping test.
This parameter is mutually exclusive with the LSP name parameter
(tmnxOamLspPingCtlLspName). Either the LDP IP Prefix or the LSP
name must be specified but not both.
This object was obsoleted in release 4.0 and replaced with
InetAddress objects tmnxOamLspPingCtlLdpPrefixType and
tmnxOamLspPingCtlLdpPrefix.