Trying to replace Brocade MLX routers - VyOS maybe?

We have multiple Brocade MLX8 and 16 and since these boxes are out of warranty and contracts, we are planning to replace them with something we can upgrade and get some kind of support.

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The rest of the network devices are Juniper MX480 routers. We are on a 10GbE network, but I think the MLX8 and MLX16 are way too overkill for what we need. Therefore, we are not looking for routers with exact specs.

The topology is full-mesh and each circuit is done via VLAN, so each router has a single physical connection (10GbE) to the WAN and each circuit (we are paying 10Gbps for each one) was done via VLAN tagging. To give an idea, here is a topology of a single site https://imgur.com/a/7u4V1PS

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We got some quotes from Juniper and Cisco and the prices are way too expensive. We are talking about $300K range. I remember VyOS recently started their subscription model. The one I am not sure of is if VyOS would meet our use case.

We are running IS-IS but this can be change to OSPF if need be.

We are running BGP

We are going to deploy IPv6 very soon

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About the hardware, I am looking at the following :

|2x[SUPERMICRO SYS-5018A-FTN4](https://www.amazon.com/SUPERMICRO-SYS-5018A-FTN4-SuperServer-5018A-FTN4-Server/dp/B00I7Z1QL2/ref=sr_1_10?crid=3F5ASNXHBU0AJ&keywords=supermicro+c2758&qid=1552748836&s=gateway&sprefix=supermicro+c27%2Caps%2C145&sr=8-10)|**$1200.00**|

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|2x[Supermicro 8GB DDR3 SDRAM](https://www.amazon.com/dp/B00J4TJG94/?coliid=I8ZUBX55OYKT7&colid=18Q3UNGWJO66E&psc=0&ref_=lv_ov_lig_dp_it)|$128.98|

|2x[Samsung 860 PRO 256GB 2.5 Inch SATA III](https://www.amazon.com/Samsung-512GB-V-NAND-Solid-MZ-76P512BW/dp/B07864XMTK/ref=sr_1_3?keywords=samsung%2Bssd%2Bpro&qid=1552749099&s=electronics&sr=1-3&th=1)|$160.00|

|VyOS Subcriptions|???|

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Can I pass traffic close to the line rate with VyOS using the hardware above?

Should I look into Xeon-D boards instead of Atom?

What 10GbE card should I use?

If I turn-on the zone base firewall with the same hardware, how much throughput are we talking about with this hardware?

If you are running VyOS in production, what is the box you are using?