Where is the link layer implemented? ÷in each and every host link layer implemented in "adaptor"(aka network interface card NIC)or on a chip application Ethernet card,802.11 transport network cpu memory card;Ethernet chipset link implements link, host physical layer bus link (e.g.,PCI) attaches into host's physical physical system buses L transrission combination of hardware, software,firmware network adapter card Link Layer 5-8 Link Layer 5-8 Where is the link layer implemented?  in each and every host  link layer implemented in “adaptor” (aka network interface card NIC) or on a chip  Ethernet card, 802.11 card; Ethernet chipset  implements link, physical layer  attaches into host’s system buses  combination of hardware, software, firmware controller physical transmission cpu memory host bus (e.g., PCI) network adapter card application transport network link link physical