I have a question about the network configuration when connecting 2 switches in a colocation rack via 2 uplinks (1 uplink to each switch) to 2 other switches of the datacenter itself.
My topology looks at the moment like this:
I have a colocation rack with 2 switches (2x DELL S6000-ON). Between both switches an ISL is set up. Every host has 2 NICs, each connected to one switch. The connection between the hosts and the switches is working via MLAG/LACP.
Now I have 2 uplinks going into my rack. Each uplink is connected to a different switch within the datacenter, also for redundancy. Their gateway is also redundant via VRRP.
Now my question: How to properly interconnect my 2 switches with their 2 switches, when having only 2 uplinks? MLAG would not work, correct? For MLAG I would need at least 4 uplinks, right? What other "technology" can I use to interconnect my 2 switches with the 2 switches of the DC for redundancy/fail-over? ECMP maybe? Some kind of L3 routing? BGP/OSPF? Or better just rent additional 2 more uplinks to do MLAG?
I'm sorry for this probably "noob-question". I'm not really the networking guy. It's enough for me if you just give me a hint like "ECMP" and then I will look up everything about it... :)
Thank you very much in advance! Greetings from Germany, Andreas
