nx-os licensing enforcement

[Jeroen Huysmans]

Hi,

At a customer I had to enable BGP routing on N5K's (5548's with L3 daughter cards).

Before enabling this feature, I checked the licensing which _shouldn't_ be a problem according to the customer.

They only have LAN_BASE_SERVICES_PKG installed, BGP isn't supported in this license.

But what's more: "The LAN_BASE_SERVICES_PKG gives unlimited static routes and a maximum of 256 dynamic routes across all the protocols."

I started counting the OSPF routes installed in the routingtable and there are currently more then 256 OSPF routes installed...

How is this maximum enforced?

I didn't see any Licensing warnings/... in the logfile, but the logging level for licmgr was lowered to 3... I raised it to 6.

regards,

Jeroen

[Mark Malone]

Its never an exact match its the same with ospf on ipbase on IOS they say around 200 dynamically learned routes but we have had more on some devices but you will hit the limit eventually and it will log a warning to let you know that its maxed and it will appear in your logs and on terminal, eventually routes will stop being added to the table

OSPF for Routed Access: Starting from Cisco IOS Release 12.2(55)SE, the IP Base image supports a new feature called OSPF for Routed Access. OSPF for Routed Access is designed specifically to enable you to extend Layer 3 routing capabilities to the wiring closet. It supports only one OSPFv2 and one OSPFv3 instance, with a maximum number of 200 dynamically learned routes.

[Jeroen Huysmans]

thanks for your input Mark.

Your answer however is alarming, knowing that we have at least 1 device with +300 OSPF routes... ;-)

There is no official documentation on this besides the maximum of 256 dynamically learned routes?

Looks like there is an invisible fence which they'll hit eventually, all I know it's above 256...

[Mark Malone]

Ye we have hit it on IOS sometimes in customer sites before and have had to reduce the routing or else upgrade to ipservcies for the full table you will get the warning it hits logs  , its a cost thing again with licensing,  Cisco have it restricted on lower licenses same with EIGRP on ipbase it can only do stub that's its restriction too, IGPs are limited on those licenses in ios/ios-xe and nx-os

 IP Base: Enables Layer 2 forwarding, IPv6 management, and basic Layer 3 routing, including Enhanced Interior Gateway Routing Protocol (EIGRP) stub and Protocol Independent Multicast (PIM) stub mode.