The value of tBgpPeerNgLocalAS specifies the autonomous system
number to be advertised for this peer.
If the value of tBgpPeerNgLocalAS, the value of tBgpPeerGroupLocalAS or
tBgpInstanceLocalAS will be used in that order.
This object was obsoleted in release 7.0. It is replaced with the
4-byte AS number defined by tBgpPeerNgLocalAS4Byte.