In wireless network, a logical link control (LLC) layer is necessary to mitigate the effect of radio channel error before cells are released to the ATM network layer.

无线at M网络中，在信元进入AT M网络层前，须通过逻辑链路控制(llc)层来消除无线信道的影响。

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We add the function of the per interface label space based on the source code, which enables to extend the LDP implementation to systems in which the data-link layer is ATM or FR.

我们在原实现基础上添加了每端口标记空间功能，使LDP实现可以向数据链路层为ATM或者帧中继的系统扩展。

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