[c-nsp] 6500 CoPP + IPv6 fragments

Bernhard Schmidt berni at birkenwald.de
Wed Jun 29 11:04:57 EDT 2011


Hi,

I have a few 6500 Sup720/3BXL boxes running various releases of
12.2(33)SXI and SXJ that seem to drop all IPv6 fragments in transit as
soon as CoPP is enabled. There are no CoPP drops logged. Even when I
remove all police lines from the policy-map the packets still get
dropped. As soon as I disble CoPP the packets get through.

I know that IPv6 fragments are not well supported in PFC3B, but is this
sort of behaviour expected? Are there any workarounds?

Best Regards,
Bernhard



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