10-17-2017 11:06 PM - edited 03-05-2019 09:19 AM
Hi guys,
I have a question and need your wise recommendation regarding the scenario.
Requirement: One of our customers has decided to have their own private dark fiber connection - ring topology. We as partners have to recommend and design their network for this topology. They are also looking to replace their Core Switches and terminate this fiber on the same.
Tricky part: In the ring topology the connection is 1-> 2 -> 3 -> 4. Now the tricky thing is, 1 is their MAIN site, and 3 is their DR Site. Since MAIN and DR are supposed to be directly connected, this won't be a case in this. This is how they are connecting the dark fiber - say cost constraint and distance.
Suggestions:
I am not sure if there is any Technology where I can have 1->3 direct connection to avoid latency. Please suggest if there is any technology which can be used in this case. Appreciate your support! Thanks!
Warm Regards,
Solved! Go to Solution.
10-18-2017 03:30 AM
Hello,
With DWDM you can dedicate wavelength(s) that pass through the intermediate site to allow for a direct connection between the main and DR site and even have redundancy going both ways around the ring. So physically it would be a ring, but logically you could define the desired topology. This would also eliminate having to route traffic through the intermediate site which is probably best.
Hope this helps.
10-18-2017 07:55 AM
10-18-2017 03:30 AM
Hello,
With DWDM you can dedicate wavelength(s) that pass through the intermediate site to allow for a direct connection between the main and DR site and even have redundancy going both ways around the ring. So physically it would be a ring, but logically you could define the desired topology. This would also eliminate having to route traffic through the intermediate site which is probably best.
Hope this helps.
10-18-2017 05:31 AM
10-18-2017 06:08 AM - edited 10-18-2017 06:23 AM
Thank you, both Chris and Joseph for your valuable input and suggestion regarding this!
Suggestion:
3. Resilient Ethernet Protocol - REP for the Ring topology, can this be used? The consultant working with customer suggested this technology.
I never came across this before.
10-18-2017 06:33 AM
Never heard of REP before, but after reading about it I wouldn't entirely be sure it would be a good fit in your scenario. It seems it would be more applicable to a LAN environment. I also don't think you'd want your ring to be a big layer 2 domain. Just my personal thoughts. Some may have other ideas.
Regards
10-18-2017 07:55 AM
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