ARP table: each IP node (host, router) on LAN has table

TTL is

recall IP address …

time after which address mapping will be forgotten

The query ARP message is sent within a broadcast frame, whereas the response ARP message is sent within a standard frame.

TTL is typically … minutes

Ethernet dominant …

popular through mid 90s

each "spoke❞ runs a (separate) Ethernet protocol (nodes do not collide with each other)

used to synchronize receiver, sender clock rates

if error detected the frame is dropped

cyclic redundancy check at receiver

6-byte source, destination MAC addresses

7 bytes of 10101010 followed by one byte of 10101011

Ethernet is connectionless: no handshaking between sending and receiving NICS

Which LAN technology was the first widely deployed high-speed LAN?

Ethernet's MAC protocol: ....with binary backof

Ethernet comes with common MAC protocol and frame format

What did switched Ethernet do to its effective data rates?

Which field in an Ethernet frame contains the IP datagram?

The destination address field in an Ethernet frame contains: