Learn which ExpressRoute gateway SKU supports 10 Gbps bandwidth, availability zones, and FastPath while minimizing costs. Compare ERGw1AZ, ERGw2, ErGw3, and ErGw3AZ options.
Table of Contents
Question
You have an on-premises datacenter and an Azure subscription.
You plan to connect the datacenter to Azure by using ExpressRoute.
You need to deploy an ExpressRoute gateway. The solution must meet the following requirements:
- Support up to 10 Gbps of traffic.
- Support availability zones.
- Support FastPath.
- Minimize costs.
Which SKU should you deploy?
A. ERGw1AZ
B. ERGw2
C. ErGw3
D. ErGw3AZ
Answer
A. ERGw1AZ
Explanation
To meet the stated requirements, the ExpressRoute gateway SKU must support:
- Up to 10 Gbps of throughput
- Availability zones for high availability across datacenter failure domains
- FastPath to bypass the ExpressRoute gateway and reduce latency
- Minimizing costs
Let’s evaluate each SKU option:
ERGw1AZ:
- Supports up to 10 Gbps bandwidth
- Supports availability zones
- Supports FastPath
- Least expensive AZ-enabled SKU
ERGw2:
- Supports up to 10 Gbps
- Does not support availability zones
- Supports FastPath
- Less expensive than ErGw3 but lacks AZ
ErGw3:
- Supports up to 10 Gbps
- Does not support availability zones
- Supports FastPath
- More expensive than ERGw2 without adding AZ
ErGw3AZ:
- Supports up to 10 Gbps
- Supports availability zones
- Supports FastPath
- Most expensive SKU
In summary, the ERGw1AZ SKU provides 10 Gbps throughput, availability zone support, and FastPath capability while having the lowest cost of the AZ-enabled SKUs. Therefore, ERGw1AZ is the best choice to meet all of the stated solution requirements.
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