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Cisco Bug: CSCvi80270 - ASR 1001-X Incorrectly Enables "throughput_20g" License on IOS-XE 3.x Irrespective of Configuration

Last Modified

Jun 29, 2018

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases

15.5(3)S

Description (partial)

Symptom:
An ASR 1001-X router running IOS-XE 3.16.x code will incorrectly enable the "throughput_20g" license irrespective of how it is actually configured. For example, if the router has no specific "platform hardware throughput level" configuration and should normally default to 2.5 Gbps, it will still operate at 20 Gbps. If the router is explicitly configured for any other throughput level, such as 10 Gbps, it will still operate at 20 Gbps.

Example:

   ROUTER#show license detail | beg throughput_20g
   Index: 15    Feature: throughput_20g   Version: 1.0
     License Type: RightToUse
     License State: Active, In Use
     License Count: Non-Counted
     License Priority: Low
     Store Index: 11
     Store Name: Built-In License Storage

   ROUTER#show run | inc throughput

   ROUTER#

In the above example, no "platform hardware throughput level" config is present, yet the "throughput_20g" is erroneously enabled.

Conditions:
This is only seen with an ASR 1001-X, which uses software licensing to determine throughput level. 

Router is running IOS-XE 3.16.x (and possibly earlier builds of 3.x.x code). Issue is *not* seen on IOS-XE 16.x Polaris images. 

Therefore, if an ASR 1001-X router is upgraded from a 3.x.x image to 16.x image, there may be a perceived drop in throughput level if the 20 Gbps license was previously erroneously enabled on the older code.
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