How many SFP ports needed for campus Ethernet Ring
Hi, I have a few simple qustions. I've looked through this site, other web sites, and books but cannot find the clear answers for these. I'd appreciate indeed if you can answer or give me any comments. Thanks.
1. When you connect the core switch in the MDF room to the access switches in IDF rooms in each floor, how many SFP ports do you need? It's for new office building and typical corporate tenants (FE/GE). I've always wondered why always 1 SFP needed regardless of the number of access ports (RJ-45) in the switch; I think it should be different depending on the active access ports to ensure the overall throuput of the fiber link back to the core switch. e.g. 24 ports of FE RJ-45 will need 2.4Gbps bandwidth of fiber link?? And 48 ports will need 4.8 Gbps??
2. For redundancy, I plan to put a distribution switch which is connected to the core switch. What connection do I need between these two switches? Distribution switch will reside different location. How many fiber strands do I need?
3. I have a ring topology around the campus to connect about 30 buildings. This Ethernet Ring will connect the core switches in the MDF rooms in each building. How many strands do I need to connect the core switches? And do I need to have MAN type switches (ME series) to support REP?? Or is it ok to run just RSTP for this Ethernet Ring?
4. Also, in the simple Ethernet Ring inside the building (8 small switches and dual ring), do I need 4 SFP ports for this?
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...