| Features | OSPF | EIGRP | RIPv1 | RIPv2 |
| Protocol Type | Link state | Hybrid | Distance Vector | Distance Vector |
| Classful Protocol | No | No | Yes | No |
| VLSM Support | Yes | Yes | No | Yes |
| Discontiguous Network Support | Yes | Yes | No | Yes |
| Hop count limit | None | 255 | 15 | 15 |
| Routing Updates | Event Triggered | Event Triggered | Periodic | Periodic |
| Complete Routing table shared | During new adjacencies | During new adjacencies | Periodic | Periodic |
| Mechanism for sharing updates | Multicast | Multicast and unicast | Multicast | Broadcast |
| Best Path computation | Dijkstra | DUAL | Bellman-Form | Bellman-Ford |
| Metric used | Bandwidth | Bandwidth and Delay (default) | Hop Count | Hop Count |
| Organization type | Hierarchical | Flat | Flat | Flat |
| Convergence | Fast | Very Fast | Slow | Slow |
| Auto Summarization | No | Yes | Yes | Yes |
| Manual Summarization | Yes | Yes | No | No |
| Peer authentication | Yes | Yes | Yes | No |
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Tuesday 30 June 2015
Comparison of routing protocols
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