The value of vRtrEcmpMaxRoutes specifies the maximum number
of equal cost routes allowed on this routing table instance.
When the number ecmp routes available at the best preference
value exceed the number of vRtrEcmpMaxRoutes allowed, then
the lowest next-hop IP address algorithm is used to select
the ecmp routes used.
When vRtrEcmpMaxRoutes is set to zero (0), and multiple routes
are available with the same best preference value and equal
cost values, then the route with the lowest next-hop IP address
is used.