What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router?

The correct answer is B. 4. By default, a Cisco OSPF router supports a maximum of 4 equal-cost paths in the routing table for load balancing (ECMP - Equal-Cost Multi-Path). This can be adjusted using the 'maximum-paths' command under the OSPF router configuration (the maximum configurable value on Cisco IOS

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Question

What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router?

Exhibit

Options

A2
B4
C16
Dunlimited

How the community answered

(32 responses)

A
6% (2)
B
91% (29)
C
3% (1)

Explanation

By default, a Cisco OSPF router supports a maximum of 4 equal-cost paths in the routing table for load balancing (ECMP - Equal-Cost Multi-Path). This can be adjusted using the 'maximum-paths' command under the OSPF router configuration (the maximum configurable value on Cisco IOS is 16 or 32 depending on platform). Having multiple equal-cost paths allows OSPF to distribute traffic across links with the same cost metric, improving bandwidth utilization and providing redundancy.

Topics

#OSPF#equal-cost paths#load balancing#routing table

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