QinQ技术原理.doc

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1、在OLT（PON口）上做QinQ，Switch_config#dot1q-tunnelVLAN配置：（创建3个外层vlan：1001,2001,3001）Switch_config#vlan1001，2001,3001然后进入PON口配置：Switch_config_epon3/1#switchportmodedot1q-translating-tunnelSwitch_config_epon3/1#switchportdot1q-translating-tunnelmodeQinQ（默认模式）Switch_conf

2、ig_epon3/1#switchportdot1q-translating-tunneltranslate101-2001001Switch_config_epon3/1#switchportdot1q-translating-tunneltranslate201-3002001Switch_config_epon3/1#switchportdot1q-translating-tunneltranslate301-4003001Switch_config_epon3/1#switchporttrunkvlan-un

3、tagged1,1001,2001,3001上联口：Switch_config_g4/3#switchportmodedot1q-tunnel-uplinkSwitch_config_g4/3#switchporttrunkvlan-allowed1001,2001,3001