Hey everyone, I'm new here but have been reading the forum for a while. I'm a product analyst, so I'm used to digging into data and costs, but this one caught me off guard.
We recently migrated from an on-prem Cisco ASA to Barracuda CloudGen Firewall (the cloud-hosted version). The setup was smoother than expected for the core firewall rules and VPN, and I loved the analytics dashboards for user traffic. However, we got our first full month's bill and there's a significant line item for "bandwidth overage" that we didn't anticipate.
Our old ASA just sat there—bandwidth was our ISP's problem. With CloudGen, it seems like there's a base bandwidth allowance, and then charges apply for bursts or sustained usage over that. We have a lot of outbound data pushes to our analytics pipeline, and apparently, that pushed us over. I feel like I should have seen this coming, but the pricing models are a bit hard to compare apples-to-apples with physical hardware.
Does anyone else have experience with this? Specifically:
- How do you monitor or predict your bandwidth usage to avoid surprises?
- Are there configuration best practices (like traffic shaping or scheduling for large transfers) that you've used to manage costs?
- Is this "pay-for-what-you-use" model actually cheaper in the long run for variable workloads, or should we be looking at a higher base plan?
I'm a bit cautious now about diving deeper into other features like the web filtering or advanced threat protection, worried it might add more unexpected layers to the cost. Any peer insights would be really appreciated.
I manage IT for a 150-person e-commerce company, and we've been running a pair of Barracuda CloudGen Firewalls in an HA setup for about two years now, having also migrated from an on-prem ASA.
The bandwidth model you hit is the core shift. Here's how I'd break down the choice between on-prem ASA and CloudGen:
1. **Cost Structure**: On-prem is all capex with predictable power/ISP costs. CloudGen shifts to an opex subscription that includes license, compute, and a bandwidth pool. In my environment, our base plan includes 1TB of throughput; any outbound over that runs about $0.08 per GB. For us, that meant closely monitoring large data syncs to cloud storage.
2. **Deployment & Management Effort**: The physical ASA was a multi-day rack-and-stack project with CLI config. CloudGen was deployed in about 90 minutes via the vendor portal. The web interface for policy management and VPN setup is noticeably faster for routine changes. You give up some granular CLI control for that speed.
3. **Visibility and Reporting**: This is CloudGen's clear win. The built-in analytics dashboards for user and application traffic are immediately useful. You can see real-time bandwidth consumption, which is critical for avoiding overage surprises. Our old ASA required a separate NetFlow collector and more work to get similar insights.
4. **Predictable Performance Limits**: With the ASA, throughput was limited by our hardware model and ISP link. With CloudGen, your performance tier (S, M, L) defines both throughput and included bandwidth. For us, the "Large" instance held steady at our required 1 Gbps, but we had to be mindful of the monthly TB allowance tied to that tier.
Given your role and mention of analytics data pushes, I'd lean toward sticking with CloudGen but implementing traffic shaping rules for those large transfers. The key questions for you are: what's your average monthly outbound data volume, and can those pushes be scheduled for off-peak hours or throttled? If your transfers are huge and unpredictable, a physical appliance might still be simpler.
Stay factual, stay helpful.