Some of it may well map to the auto-neg info in this doc http://www.dell.com/content/topics/global.aspx/power/en/ps1q01_hernan On Wed, Jul 21, 2010 at 2:20 PM, Antonio wrote:

Hi,

Does anyone  have information about Cisco SFP internal registers?  eg: How to determine the specifics of the registers and how they affect the link.  I've googled but not found any specific content.

Antonio

switch# show controllers ethernet-controller gi0/21 phy

Page 0 Registers ------------------------------------------------------------------------  0000: 1140 Control Register                 :  0001 0001 0100 0000  0001: 0149 Control STATUS                   :  0000 0001 0100 1001  0002: 0141 Phy ID 1                         :  0000 0001 0100 0001  0003: 0C97 Phy ID 2                         :  0000 1100 1001 0111  0004: 03E1 Auto-Negotiation Advertisement   :  0000 0011 1110 0001  0005: 0000 Auto-Negotiation Link Partner    :  0000 0000 0000 0000  0006: 0004 Auto-Negotiation Expansion Reg   :  0000 0000 0000 0100  0007: 2001 Next Page Transmit Register      :  0010 0000 0000 0001  0008: 0000 Link Partner Next page Registe   :  0000 0000 0000 0000  0009: 0F00 1000BASE-T Control Register      :  0000 1111 0000 0000  000A: 4000 1000BASE-T Status Register       :  0100 0000 0000 0000  000F: C000 Extended Status Register         :  1100 0000 0000 0000  0010: 6028 PHY Specific Control Register    :  0110 0000 0010 1000  0011: 80C8 PHY Specific Status Register     :  1000 0000 1100 1000  0012: 0000 Interrupt Enable Register        :  0000 0000 0000 0000  0013: 0000 PHY Specific Status Register2    :  0000 0000 0000 0000  0015: 0000 Receive Error Counter            :  0000 0000 0000 0000  0016: 0000 Page Address Register            :  0000 0000 0000 0000  001A: 8040 PHY Specific Control Register2   :  1000 0000 0100 0000

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