Why Would A Summarized Static Route Be Configured On A Router?

Why would a summarized static route be configured on a router?

Answer: Configuration of the summarized static route occurs to minimize the routing table size. The summary route shows multiple networks. It is not capable to give a better route as compared to the routing protocol. The routing protocol may not lessen the size of the static route is in use.

The static summary route can reduce the static route size and also minimize the administrator overhead which might put an impact on the memory use of the router. The efficient use of the summary route maintains the huge number of static route in a routing table, which in return reduce the chance of the error. Instead of the multiple static routes, the single summary route is useful to incase these two have the same prefix length. The static summary route configuration is the same as the static route.

Route summarization is the method to advertise the multiple addresses to a single address with a specified and short subnet mask. CIDR is the same as the supernetting which is also the route summarization type. CIDR work is to look over the class boundary and permits the summarization with a subnet mask which is small in size, unlike the default subnet masks.it will help to lessen the routes, routing updates, memory, CPU use, and the fast-routing table lookups. The steps to calculate the static route summarization are listed below:

• Write the address which needs to be summarized.
• Look for the subnet mask. Start from the left bit and move toward the right, check the bit that matches till to the unmatching column.it signifies the summary boundary.
• Count the far-left bits which match. Suppose it is 22, a/22 it will lookup for the subnet mask, in the form of slash notation for the summarized route.
• To locate the network address, copy 22 bits and at the end add the 0 bit.