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Ring topology - EIGRP, MetroEthernet, other?

Hi All,

I'm on the design phase for a project that must provide the following:

- Ring-based topology

- 3 independent rings, sharing the same Access Router among them

- Interconnect 12 buildings on the same ring (this is the biggest one)

- Each building will generate ~50 Mbps traffic

- The network must transport mission critical control applications, video surveillance, regular data

- Most cost-effective infrastructure

- Tha backbone will run at 10G

B1<-->B2<-->B3<-->B4<-->B5<-->B6<-->B7<-->B8<-->B9<-->B10<-->B11<-->B12<-->Access Router 1

||                                                                                                                                                ||

=================================================================Access Router 2

I've been evaluating several options like:

- EIRGP: Cheapest and preferred option, however it seems that EIGRP has some scalability restraints when used in a ring.

- MetroEthernet: May be used as a L2 transport and run EIGRP on top of it, a little bit more complex but nothing to worry about.

- SDH: Totally new for me.

- SRP/DPT: Totally new for me.

Depending on the chosen technology it will be considered as a LAN or WAN topology.

Which benefits/considerations must be taken into account to chose the most appropiate technology? What is your recommendation?

Thanks in advance!



  • LAN Switching and Routing