I have searched but been unable to find a list of line cards that support MACSEC on the ASR9Ks.
Can anyone point me to such a resource?
You probably don't need the answer at this point, but were probably looking for something like this: https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r7-1/system-security/configuration/guide/b-system-security-cg-asr9000-71x/b-system-security-cg-asr9000-71x_chapter_0101.html#id_34100
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