Maximum # sub interfaces

Answered Question
Sep 9th, 2008
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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

Correct Answer by Calin Chiorean about 8 years 10 months ago

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

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Correct Answer
Calin Chiorean Wed, 09/10/2008 - 00:14
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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

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