Cisco Bug: CSCvt29099 - [PLT-ICUPS]:Multi protocol flows are not optimized by CUTO
Oct 07, 2020
- Cisco ASR 5000 Series
- Cisco ASR 5500
Known Affected Releases
220.127.116.11684 21.20.5 21.21.0
CUTO's 3-tuple flow was made of src address, dst address and L3 protocol (IP4 or IP6), though it should have been src address, dst address and L4 protocol (TCP/UDP). Symptom: if TCP and UDP streams are between same set of src and dst addresses, whichever stream is created first will become CUTO flow. The later created stream will not trigger a new CUTO flow and it will just become part of the previous flow. Conditions: This issue is seen when TCP and UDP streams are created between same set of src and dst addresses.
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