tree f355133b7a2c4ef08ba5a2fb97d738c486265289
parent 6a01c2fb6752a11c74b0232e0715a37b4fb8860e
author Pavlin Radoslavov <pavlin@onlab.us> 1415308605 -0800
committer Pavlin Radoslavov <pavlin@onlab.us> 1415308605 -0800

Updated SDN-IP to use Ip4Address and Ip4Prefix instead of IpAddress and
IpPrefix, because so far we haven't implemented IPv6.
Also, some of the BGP-related attributes (e.g., BGP Speaker ID)
are IPv4 by definition.

The following components are updated:
 * BGP implementation
 * Router component and relevant state (e.g., RouteEntry)

Other components (e.g., configuration) will continue to use
the more generic IpAddress and IpPrefix.

Change-Id: I1936ca9871fd5a9709cb4f2c2850d78ebc1472c4