Quotas and limits in Network Load Balancer
Yandex Network Load Balancer has the following limits:
- Quotas are organizational constraints that our support team can change upon request.
- Limits are technical constraints of the Yandex Cloud architecture. You cannot change the limits.
If you need more resources, you can increase your quotas in one of the following ways:
- Make a request to increase your quotas.
- Contact support, detailing which quotas you want increased and by how much.
To have your request processed, you must have the quota-manager.requestOperator role or higher, e.g.,editor or admin.
You can manage quotas using Cloud Quota Manager.
Quotas
| Type of limitation | Value |
|---|---|
| Number of load balancers per cloud | 2 |
| Number of target groups per cloud | 100 |
Limits
| Type of limitation | Value |
|---|---|
| Number of targets per target group | 254 |
| Number of ports per listener | 10 |
| Number of health checks per attached target group | 1 |
| Health check protocol | TCP, HTTP |
Other restrictions
A single target group can only contain targets from a single cloud network.
Within a single availability zone, a target group can only include targets on the same subnet.
If you add a target to the internal load balancer's target group, it will not be directly accessible on the target port.
You can create a load balancer without a listener.
Health check traffic comes from the 198.18.235.0/24 and 198.18.248.0/24 ranges.
When adding targets for a load balancer, keep in mind the limit on the maximum number of concurrent TCP/UDP connections per VM.