ul upper layer protocol

上层协议  detail>>

ul upper level protocol

高级别协议  detail>>

upper layer protocol

上层协议  detail>>

ul user location protocol

用户区位协议  detail>>

ul upper limit

上限  detail>>

upper limit (ul)

最高极限  detail>>

layer protocol

层次协议  detail>>

protocol layer

协议层, 规约层  detail>>

upper layer

顶层 上层  detail>>

a lication layer protocol ecification,

应用层协议规范  detail>>

application layer protocol specification

应用层协议规范  detail>>

connectionless network layer protocol

无连接的网络层协议  detail>>

data link layer protocol

数据链路协议  detail>>

high layer protocol

高层协议  detail>>

higher-layer protocol identifier

高层协议标识符  detail>>

layer forwarding protocol

第二层推送协定  detail>>

layer tunneling protocol (l2tp)

第二层隧道协议  detail>>

layer two tunneling protocol

第二层通道通信协定 第二层通道通信协议  detail>>