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IP reservation definition
| Field | Description | Accepted Values | Schema | Default |
|---|---|---|---|---|
| reservedCIDRs | List of IP addresses and/or networks specified in CIDR notation | List of valid IP addresses (v4 or v6) and/or CIDRs | list |
The implementation of s is designed to handle reservation of a small number of IP addresses/CIDRs from (generally much larger) IP pools. If a significant portion of an IP pool is reserved (say more than 10%) then Calico may become significantly slower when searching for free IPAM blocks.
If an is created after an IP from its range is already in use then the IP is not automatically released back to the pool. The reservation check is only done at auto allocation time.
When Windows nodes claim blocks of IPs they automatically assign the first three IPs in each block and the final IP for internal purposes. These assignments cannot be blocked by an IPReservation. However, if a whole IPAM block is reserved with an IPReservation, Windows nodes will not claim such a block.
