Question about ctr mode 3des-ede IV len

[Longpeng (Mike)]

Hi Jussi and Herbert,

I saw serveral des3-ede testcases(in crypto/testmgr.h) has 16-bytes IV, and the
libgcrypt/nettle/RFC1851 said the IV-len is 8-bytes.

Would you please tell me why these testcases has 16-bytes IV ?

Thank you. :)

-- 
Regards,
Longpeng(Mike)