OSPF: OSPF summary
Here is a list of the most important OSPF features:
• link state routing protocol
• classless routing protocol
• supports VLSM (Variable Length Subnet Mask)
• converges fast
• uses the concept of areas
• uses multicast address for routing updates (224.0.0.5 and 224.0.0.6)
• sends partial routing updates
• supports only equal cost load balancing
• manual summarization can be done only on ABRs and ASBRs
• uses interface cost as a metric
• uses SPF algorithm to calculate the best paths
• open standard
• each router inside an area has the same topology table
• supports clear-text and MD5 authentication
• classless routing protocol
• supports VLSM (Variable Length Subnet Mask)
• converges fast
• uses the concept of areas
• uses multicast address for routing updates (224.0.0.5 and 224.0.0.6)
• sends partial routing updates
• supports only equal cost load balancing
• manual summarization can be done only on ABRs and ASBRs
• uses interface cost as a metric
• uses SPF algorithm to calculate the best paths
• open standard
• each router inside an area has the same topology table
• supports clear-text and MD5 authentication