ch.7 Configuring and verifying switch interfaces Flashcards
What is the root cause of the status codes
admin down - down/disabled
The shutdown command is configured on the interface
Root cause of status codes - down/down/not connect
No cable, bad cable, wrong cable pinouts, speed mismatch, neighboring device is either powered off shutdown or disabled
Root cause of up/down/not connected
Not expected on LAN switch physical interfaces
Root cause of down/down(err-disabled)/err-disabled
Port security has disabled the interface
Root cause of up/up/connected
The interface is working
What is the command that shows brief information on interfaces
show interfaces status
What command shows in depth amount of information on interaces
show interfaces
What happens when one device uses autonegotioation and the other disables it
The first device must resort to default settings
When does duplex default to half duplex
When speed is 10 or 100
When does duplex default to full-duplex
When speeds are higher than 100
What speed is defaulted to during disabled negotiation
the slowest speed supported
When you configure speed and duplex manually what happens to the auto-negotiation
It gets disabled
Runts
Frames that did not meet the minimum frame size requirement. Can be caused by collisions
Giants
Frames that exceed the maximum frame size requirement
Input errors
A total of many conters, including runts, giants, no buffer, CRC, frame, overrun, and ignored counts
CRC
Received frames that did not pass the FCS math, can be caused by collisions
Frame
Received frames that have an illegal format, can be caused by collisions
Packets Output
Total number of packets forwarded out the interface
Output errors
Total number of packets that the switch port tried to transmit, but for which some problem occured
Collisions
Counter of all collisions that occur when the interface is transmitting a frame
Late collisons
The subset of all collisions that happen after the 64th byte of the frame has been transmitted
what is the command to enter interface mode
interface fa or g or f
What is the command to select multiple interfaces in the cli
interface range f0/1 f 0/10
what is the command to turn off or turn on an interface
shutdown or no shutdown
Whats the command to configure the speed of an interface
speed {10 | 100 | 1000 | auto }
What is the command to configure duplex
duplex {auto | full | half}
What is the command to set a description on an interface
description [insert text here]
What are the commands to revert to the default settings for each interface
no duplex
no speed
no description
show running-config
Lists the currently used config
show running-config |interface number
Displays the running-config excerpt of the listed interface and its subbcommands only
show mac address-table dynamic [interface type number] [vlan id]
Lists static MAC addresses and MAC address learned or defined with port security
show interfaces [type number] status
Lists one output per interface
show interface [type number]
Lists detailed status and statistical info about all interfaces
show interfaces description
Displays one line of information per interface. with a two-item status and includes any description that is configured on the interfaces
