Chapter 7 Flashcards
An IEEE standard mechanism (802.3u) with which two nodes can exchange messages for the purpose of choosing to use the same Ethernet standards on both ends of the link, ensuring that the link functions and functions well.
autonegotiation
Generically, any communication in which two communicating devices can concurrently send and receive data. In Ethernet LANs, the allowance for both devices to send and receive at the same time, allowed when both devices disable their CSMA/CD logic.
full duplex
Generically, any communication in which only one device at a time can send data. In Ethernet LANs, the normal result of the CSMA/CD algorithm that enforces the rule that only one device should send at any point in time.
half duplex
Ethernet interfaces using speeds more than 1 Gbps always use_______ duplex
full duplex
The term for the branch of IEEE autonegotiation steps that applies to a device that uses autonegotiation but the device on the other end of the link does not.
parallel detection
The show running-config and show startup-config commands typically do not display default configuration settings. Hence, the absence of interface subcommands under an interface means that all possible subcommands use default values. You can see the configured and default settings using the show running-config all command. (Be warned, the show running-config all command lists many commands, about ten times the output of the show running-config command.)
no answer just need to know and understand
This book refers to these two status codes in shorthand by just listing the two codes with a slash between them, such as up/up or down/down.
no answer just need to know and understand
A short reference to an Ethernet NIC or switch port that supports speed of 10 Mbps and 100 Mbps.
10/100
A short reference to an Ethernet NIC or switch port that supports speeds of 10 Mbps, 100 Mbps, and 1000 Mbps (that is, 1 Gbps).
10/100/1000
An Ethernet standard feature, introduced at the same time as Gigabit Ethernet in 1998, that senses whether the link uses the correct UTP cable pinout (straight-through or crossover), and automatically swaps the signals internally to make the link work if the wrong UTP cable pinout is used.
auto-MDIX
On opposite ends of any Ethernet link, the condition in which one of the two devices uses full-duplex logic and the other uses half-duplex logic, resulting in unnecessary frame discards and retransmissions on the link.
duplex mismatch
The subset of all collisions that happen after the 64th byte of the frame has been transmitted.
Late Collisions:
Counter of all collisions that occur when the interface is transmitting a frame.
Collisions
