Scalability of OSPFv2 gets limited by availability of resources like Memory, CPU and hardware tables. While increasing the scale, you need to consider time taken for adjacency formation and route convergence.
The supported scale for OSPFv2 across all VRF instances is as follows:
| Description | Number supported |
|---|---|
| Maximum number of OSPFv2 VRF Instances | 1024 |
| Maximum number of OSPFv2 Areas | 1024 |
| Number of OSPFv2 Interfaces | 2048 |
| Number of OSPFv2 Neighbors | 2048 |
| Maximum Number of OSPFv2 Routes | 100k (102400) |
The supported scale for OSPFv2 per VRF instance is as follows:
| Description | Number supported |
|---|---|
| Maximum number of OSPFv2 Areas | 200 |
| Number of OSPFv2 Interfaces | 200 |
| Number of OSPFv2 Neighbors | 200 |
| Maximum Number of OSPFv2 Routes | 100k (102400) |