Kev ua haujlwm yog qhov taw qhia ncaj qha tshaj plaws Rau kev nkag mus rau txheej txheej txheej, yooj yim QoS lav, kev ruaj ntseg mechanisms, kev txhawb nqa rau kev tswj hwm lub tswv yim, kev nthuav dav ntoo thiab VLANs yog tag nrho cov haujlwm tseem ceeb, txawm li cas los xij, yog tias koj txheeb xyuas kom zoo, qee qhov haujlwm tuaj yeem ua tau ntxiv subdivide.. .
Nyeem ntxiv