LAN Phy or WAN Phy?

Hi All,
Can someone please clarify the difference between 10Gbps LAN Phy and WAN Phy?
Is there is a preference between using either/or?

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Hello,
We can think of 10GE LAN as a usual Ethernet we used to see.
10GE WAN uses SONET/SDH framing instead and hence can be directly connected to OC-192c/STM-64 interfaces at a carrier network. For diagnostics 10GE WAN PHY makes use of the SONET overhead bits to detect :
- Loss of signal
- Coding violations
- Framing errors/ loss of frame
- Errored seconds
- Severely errored seconds
- Loss of synchronization (not needed) • Same Error/ performance monitoring
- B1, B2, B3
- J0, J1
Same Defect/ Alarms
- FEBE
- RDI
- AIS
Regards,
/A

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