05-13-2017 04:02 AM
Is there a document on ASR9K tunnel traffic forwarding?
some example questions
05-13-2017 04:09 PM
GRE_ING_DECAP_P2_PROT_UNSUPPORTED - this indicates GRE decapsulation header protocol value is not supported,
GRE_ING_DECAP_PRS_P2 - Frames entering GRE decapsulation 2nd pass processing on ingress NP
Thx
Sudhir
05-14-2017 07:00 AM
yes, GRE enccapsulation is an egress NP operation.
GRE decapsulation requires one more pass through the ingress NP.
Any performance test results are very much dependent on the specific test scenario because there are many factors that influence the performance (what other features are configured, traffic pattern, etc.). However, based on the fact that one more pass is required on decapsulation, this already gives you some indication of the performance impact.
hope this helps,
/Aleksandar
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