The data-rates of transit ports and access ports in the homogeneous Mesh network consisting of low earth orbit (LEO) satellites were deduced based on the symmetrical characteristic of the network topology.According to the traffic

the capacities of the ports were optimized by the Lagrange multiplier method to minimize the packet lost ratio.In the network constituted by

m

orbit-planes with

n

satellites each

the capacities of intra-orbit ports should be inversely proportion to the orbit number

m

approximately

n/8

times of accessing data rates.The capacities of inter-orbit ports should be inversely proportion to the satellite number

n

in each orbit

approximately

m/8

times of accessing date rates.Before optimization

the packet lost ratio was minimum when

m=n

.After optimization

the packet lost ratio is reduced and keeps decreasing as the total number of satellites increases.