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My company has had dual 100 Mbps Internet connections running BGP on two Cisco 2921 routers for several years. It works as expected... when there are issues on one line, BGP cuts over properly. If we want to do maintenance on one, we manually flip BGP over without missing a beat, and all is well. We are only getting default routes from our providers, so memory is not a concern.

We are about to upgrade one of the connections to 1 Gbps, but the 2921 routers cannot pass traffic at that speed. I am considering getting a Cisco 3560CX switch with an IP Services license which would work fine. However, I'm very curious to try a Ubiquiti EdgeRouter Pro (ERPro‑8) instead. I'm just so shocked as to how cheap it is, and it makes me wonder if something is wrong. It would be a straight-up replacement for one of the 2921s, so I wouldn't be doing any firewall, NAT, or any other fancy functionality.

Can you think of any reason why this sub-$400 router would not work as well for basic BGP routing as a Cisco 3560-CX IP Services (about $2,500) or a Cisco 4431 with the high-speed license that would cost about $10,000? Is it unreliable? Does it only last for a year before exploding? How can this be?!

Thanks.

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    Check the router throughput specs. Just because it has gigabit interfaces doesn't mean it can forward that fast. – Ron Trunk Mar 2 '17 at 2:20
  • I checked the specs before posting my question to ensure it provided the necessary throughput. – theglossy1 Mar 10 '17 at 14:35
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This router run EdgeOs which is a fork of the community (open source) Vyatta software. Vyatta was bought by Brocade and the community edition discontinued. It was then forked to EdgeOs and VyOs

I'm not an Ubiquity / EdgeOs user but I do use VyOs intensively, including for BGP (full table, multiple ISP, 10Gbs links), for years in production environments and it run perfectly stable.

As commented by @Ron Trunk you have to check if the hardware and throughput specifications meet your needs. From this datasheet we get:

Layer 3 Forwarding Performance 
Packet Size: 64 Bytes
Packet Size: 512 Bytes or Larger
2,400,000 pps
8 Gbps (Line Rate)

Processor     Dual-Core 1 GHz, MIPS64 with Hardware Acceleration for Packet Processing
System Memory    2 GB DDR3 RAM
On-Board Flash Storage    4 GB
  • Perfect, thanks. I knew all that and had checked the specs beforehand (which is why I bothered to ask the question), but I hadn't had the testimonial up till now. – theglossy1 Mar 10 '17 at 14:30

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