求翻译：为评估ABE和IAB算法性能，在ns仿真平台分别采用ABE和IAB算法对图fig3所示网络拓扑进行仿真实验，测量3节点到4节点的可用带宽。是什么意思？

Assessment abe and the iab algorithm performance, in ns simulation platform using abe and iab algorithm, simulation experiments pairs Figure fig3 shown in the network topology, and measuring the available bandwidth of the three node to node.

In order to assess ABE IAB algorithm performance, and the NS emulation platform with ABE IAB algorithm and fig 3 shows the topology of the network emulation experiments measuring 3 node, node 4 to the available bandwidth.

正在翻译，请等待...

To assess the ABE and IAB algorithms, respectively to the ABE and IAB algorithm in NS simulation platform for map shown in fig3 simulation experiment network topology, available bandwidth measurement 3 nodes to 4 nodes.

In order to appraise ABE and the IAB algorithm performance, uses ABE and the IAB algorithm separately in the ns simulation platform shows the network analysis situs to chart fig3 to carry on the simulation experiment, surveys 3 nodes to 4 node available band widths.