I have configured PPPOE configuration in 1700 router. Some times I am getting slow performance issue while accessing the internet application, I have configured half duplex in E0 interface which is connected in internet modem. But I am not sure modem in full or half duplex. When I am configured half duplex I am getting Collection in E0 interface. So I have set full duplex mode that time I am getting CRC and frame errors but performance is better then half duplex. Please any one help me .