ospf vs is-is

[mahesh-gohil]

Dear all,

I want to know why bigger ISp prefer Is-IS instead of OSPF . pl. explain with example

Regards

[nambi_gct]

In my opinion, extending the backbone is easier in is-is.cisco also provides priority-driven RIB installation feature for isis that speeds up the convergence.But in general both ospf and isis are equally good o provide subsecond convergnce values.