Please enable JavaScript.
Coggle requires JavaScript to display documents.
Gigabit Ethernet (1000 Mbps) (Physical Layer (PHY Sublayer (Internal only,…
Gigabit Ethernet (1000 Mbps)
MAC Sublayer
Half Duplex
CSMA/CD
Full Duplex
Without CSMA/CD
No collision
Maximum length of the cable determined by signal attenuation in the cable
Physical Layer
Reconciliation Sublayer
Sends 8 bit parallel data to the PHY sublayer via GMII interface
PHY Sublayer
Internal only
Medium-independent transceiver
Encode and decode
Medium-Dependent Interface (MDI)
Connect transceiver to the medium
Only RJ-45 and fiber optic connectors are defined
Gigabit Medium-Independent Interface (GMII)
Defines how reconciliation sublayer is to be connected to the PHY sublayer
Counterpart of MII in Fast Ethernet
Logical interface
Gigabit Ethernet: Physical Implementation
1000-BaseSX
Media
Fiber short wave
Number of Wires
2
Maximum Length
550m
Block Encoding
8B/10B
Line Encoding
NRZ
1000-BaseLX
Media
Fiber long wave
Number of Wires
2
Block Encoding
8B/10B
Line Encoding
NRZ
Maximum Length
5000m
1000-BaseCX
Media
STP
Maximum Length
25m
Number of Wires
2
Block Encoding
8B/10B
Line Encoding
NRZ
1000-BaseT
Media
CAT5 UTP
Line Encoding
NRZ
Maximum Length
100m
Number of Wires
4