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New Member

Sonet C2 byte question

Does Cisco recommend the C2 byte to be set to "16" for GSR-GSR or GSR-OSR connections? I did not list the OC speed because it is not an issue. So,I i have heard some people say "CF" and others "16".

Thanks,

Scott

3 REPLIES
Silver

Re: Sonet C2 byte question

I’ve heard 16 too.

New Member

Re: Sonet C2 byte question

c2 = 16hex means PPP scrambled

CF means PPP unscrambled.

It is always better to have it scrambled to maintain reliable connection,

although at low speeds scrambling can be disabled. At speeds above OC-192 scrambling is mandatory.

New Member

Re: Sonet C2 byte question

Please refer to this URL on the usage of C2 byte:

http://www.cisco.com/warp/customer/127/POS/flag_byte.html

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