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25 Cards in this Set
- Front
- Back
10 Mb ethernet |
10 Base T 802.3 Copper, 100m |
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100 Mb ethernet |
Fast Ethernet 100BASE-T 802.3u Copper, 100m |
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1000 Mb Ethernet |
Gigabit Ethernet 1000Base-LX 802.3z Fiber, 5000m
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1000 Mb Ethernet |
Gigabit Ethernet 1000Base-T 802.3ab Copper, 100m
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10 Gb Ethernet |
10 Gig Ethernet 10GBASE-T 802.3an copper, 100m
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Header and trailer |
bytes of overhead data that Ethernet uses to do its job of sending data over a LAN.) |
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Focus of Ethernet data link |
sending an Ethernet frame from source to destination Ethernet node.
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"frame" refers to? |
header and trailer of a data link protocol, plus the data encapsulated inside that header and trailer |
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Crosstalk |
EMI between wire pairs in the same cable |
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Ethernet straight through cable concept |
PC transmits on 1,2 receives on 3,6 Switch receives on 1,2 transmits on 3,6
A straight-through cable works correctly when the nodes use opposite pairs for transmitting |
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Crossover cable |
when two like devices connect to an Ethernet link, they both transmit on over the same pins. In that case, you then need another type of cabling pinout called a crossover cable. The crossover cable pinout crosses the pair at the transmit pins on each device to the receive pins on the opposite device. |
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NIC transmits on? Switch transmits on? |
1,2 3,6 |
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Use crossover cable when? |
If the endpoints transmit on the same pin pair |
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Use straight through when? |
If the endpoints transmit on different pin pairs |
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Devices that transmit on 1,2 |
NICS Routers WAPs |
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Devices that transmit on 3,6 |
Hubs Switches |
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Auto-mdix |
notices when the wrong cable is used |
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Preamble |
7 bytes Synchronization |
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Start Frame |
1 byte
Signifies that the next byte begins the Destination MAC Address field |
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Destination MAC Address |
6 bytes
Identifies the intended recipient of this frame |
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Source MAC Address |
6 bytes
Identifies the sender of this frame |
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Type |
2 bytes
Defines the type of protocol listed inside the frame; today, most likely identifies IP version 4 (IPv4) or IP version 6 (IPv6 |
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Data and Pad |
46–1500 bytes
Holds data from a higher layer, typically an L3PDU (usually an IPv4 or IPv6 packet). The sender adds padding to meet the minimum length requirement for this field (46 bytes). |
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Frame Check Sequence (FCS) |
4
Provides a method for the receiving NIC to determine whether the frame experienced transmission errors |
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MAC addresses aka |
unicast ethernet address |