Quotas and limits in Virtual Private Cloud
Virtual Private Cloud
Virtual Private Cloud has the following limits:
- Quotas are organizational restrictions that can be changed by technical support on request.
- Limits are technical limitations due to Nebius AI architectural features. The limits cannot be changed.
If you need more resources, generate a request for a quota increaseeditors
or admins
group.
Quotas
Type of limit | Value |
---|---|
Number of public IP addresses per cloud | 2 |
Limits
Type of limit | Value |
---|---|
Minimum CIDR size for a subnet* | /28 |
Maximum CIDR size for a subnet* | /16 |
Maximum number of TCP/UDP connections per VM, node, or host† | 50,000 |
Supported network and transport layer protocols | IP, ICMP, TCP, UDP, GRE, ESP, AH |
Maximum number of DNS queries to the subnet's DNS server | 1000 RPS |
* The limit applies to subnets created for Kubernetes services and pods in a Managed Service for Kubernetes cluster.
† All TCP/IP and UDP connections opened and half-opened within 180 seconds are taken into account. If there are no data or keep-alive packets in the connection during this time, it is forcibly closed.
Outgoing traffic filtering
Nebius AI automatically blocks traffic sent from Virtual Private Cloud pubic IPs to TCP port 25 of any servers on the internet and Compute Cloud VMs.
Nebius AI can provide a special public IP address with TCP port 25 opened upon request to the support team.
For public IPs that are already in use, port 25 cannot be opened.