Solved: Maximum # sub interfaces

tadamson · ‎09-09-2008

Running 7206vxr hardware, currently running NSE-1 with 12.3 software, soon moving to G1 card with latest software.

Is there a maximum number of sub-interfaces that can be configured on an ATM interface? Currently running over 500 sub interfaces. Utilization wise, we haven't topped out the interface yet, but I wanted to make sure that we can continue on upwards to 1000+

Thanks

Calin C. · ‎09-10-2008

Hi!

With your platform and IOS you can use a maximum number of 20000 interfaces or subinterfaces.

Every interface uses an IDB. Therefore, the IDB limit indicates the maximum number of interfaces a router can handle.

The IDB limit is, therefore, the answer to the common question "How many (sub)interfaces can be configured on this platform?"

Cheers,

Calin

View solution in original post

Calin C. · ‎09-10-2008

Hi!

With your platform and IOS you can use a maximum number of 20000 interfaces or subinterfaces.

Every interface uses an IDB. Therefore, the IDB limit indicates the maximum number of interfaces a router can handle.

The IDB limit is, therefore, the answer to the common question "How many (sub)interfaces can be configured on this platform?"

Cheers,

Calin