We have an existing 10 G p2p link between our Datacenter ( DC) and Corporate Office ( HQ )with a service provider, Lets call A
When A did our install they have used a Cienna box on HQ side , I guess it is a fiber type converter ( SM to MM fiber ), so we ended up using MM fiber with a 10G-SR transceiver to our 4500 swicth on HQ side .
On the DC side we still ended up using MM fiber with 10G-SR module .
This circuit was up and running with out issues.
Now we are swicthing to a different Service provide . lets say B.
B says that the hand off will be a SM type , and they are not providing with any Cienna box .
So should we have to use SM fiber with 10G-LR type transceiver to connect to our 4500 on HQ side and also SM fiber with 10G-R type connector on the DC side ?
Is there any way we could reuse the existing MM fiber and 10G-SR modules ??
I am trying to understand how the Service providers run a p2p connection in this case 10G-ELAN , when there are differnt segments involved . ( in this case .. they have multiple gateways between the circuit from HQ---- gateway1 -- gateway 2 -- DC) and what connector types and fiber types need to be used on each end of the segment .
Please help !!