We can think of 10GE LAN as a usual Ethernet we used to see.
10GE WAN uses SONET/SDHframing 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
That is not entirely correct. There is LAN, WAN and G709 encapsulations. WAN and G709 are not the same. WAN is based on SONET and G709 is a separate standard for optical transmission (primarily for DWDM).
FEC is available with G709 only.
LOS is very general alarm, LAN ports support it too.
So your XFP and LC should explicitly support G709 in order to have FEC.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.