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Cisco Bug: CSCvu28718 - Block non-existent ACL to be applied under monitor-session for SPAN

Last Modified

May 18, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

7.0.14.BASE

Description (partial)

Symptom:
If i try to apply a non-existent SPAN  ACL under monitor-session, the configuration goes through albeit with an error message below .We should block interface configuration  of an non-existent SPAN ACL like we block a security ACL.

Conditions:
Have monitor-session configured under the inteface and then try to apply a non-existent SPAN ACL . this config should be blocked because it causes no traffic to get spanned anymore , which is not desirable. 

the fact that ACL does not really exists and yet behaves as if its installed because no more traffic is getting mirrrored is not desired.
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