Monitor IPAM with Amazon CloudWatch
IPAM automatically stores metrics related to IPAM IP address usage (such as the IP address
space available in your IPAM pools and the number of resource CIDRs that comply with
allocation rules) in the AWS/IPAM
Amazon CloudWatch namespace in the home Region of your IPAM. You can use these metrics to
create alarms for IPAM pools to notify you if the address pools are nearing exhaustion or if
resources fail to comply with allocation rules set on a pool. Creating alarms and setting up notifications is outside the scope of this User Guide. For
more information, see Using Amazon CloudWatch
alarms in the Amazon CloudWatch User Guide.
The metrics and dimensions that IPAM sends to Amazon CloudWatch are listed below.
IPAM Pool Metrics | |
|---|---|
| Metric name | Description |
| CompliantResourceCidrs | The number of managed resource CIDRs that comply with the allocation rules of the IPAM pool. For more information about allocation rules, see Create a top-level IPv4 pool. |
| NoncompliantResourceCidrs | The number of managed resource CIDRs that do not comply with the allocation rules of the IPAM pool. For more information about allocation rules, see Create a top-level IPv4 pool. |
| PercentAllocated | The percentage of a pool's IP space that has been allocated to other pools. |
| PercentAssigned | The percentage of a pools IP space that has been allocated to resources, including manual allocations. |
| PercentAvailable | The percentage of a pool's IP space that has not been allocated to other pools or resources. |
IPAM Scope Metrics | |
|---|---|
| Metric name | Description |
| CompliantResourceCidrs | The number of resource CIDRs that comply with the allocation rules for IPAM pools in the scope. |
| ManagedResourceCidrs | The number of resource CIDRs for manageable resources (VPCs or public IPv4 pools) that are allocated from an IPAM pool in the scope. |
| NoncompliantResourceCidrs | The number of resource CIDRs that do not comply with the allocation rules for the IPAM pools in the scope. |
| OverlappingResourceCidrs | The number of resource CIDRs that overlap within a pool in the scope. |
| UnmanagedResourceCidrs | The number of resource CIDRs in the scope that are currently associated with manageable resources but are not managed by IPAM. |
The dimensions you can use to filter IPAM metrics are listed below.
| Dimension | Description |
|---|---|
| AddressFamily | The IP address family for resource CIDRs (IPv4 or IPv6). |
| Locale | The AWS Region where an IPAM pool is available for allocations. |
| PoolID | The ID of a pool. |
| ScopeID | The ID of a scope. |
For information about monitoring VPCs with Amazon CloudWatch, see CloudWatch metrics for your VPCs in the Amazon Virtual Private Cloud User Guide.
