[c-nsp] How to tell if an interface is Single mode or Multi mode

[Richard A Steenbergen]

On Tue, Jun 20, 2006 at 10:58:33AM -0700, Carl Kloppenborg wrote:
> Is there a way to tell if the GBIC is single mode or multi mode from a
> remote location? It's a 6509 running IOS

For a detailed answer even when the gbic/sfp isn't offically recognized, 
or is recognized as something generic instead of a specific CWDM 
frequency, try:

#sh idprom int g4/11

Transceiver Serial EEPROM Contents:
Common block:
 Identifier        : Transceiver
 Connector         : SC connector [0x01]
 Transceiver
  Speed            : [0x00]
  Media            : [0x00]
  Technology       : [0x00]
  Link Length      : [0x02]
  GE Comp Codes    : [0x80]
  SONET Comp Codes : OC12, multi-mode short reach [0x10]
 Encoding          : 8B10B [0x01]
 BR, Nominal       : 12x100 MHz [0x0C]
 Length(9u)        : > 25.4 km [0xFF]
 Length(50u)       : 0 x 10 m [0x00]
 Length(62.5u)     : 0 x 10 m [0x00]
 Length(Copper)    : 0 m [0x00]
 Vendor Name       : FINISAR CORP.   
 Vendor OUI        : 0x0 0x90 0x65 
 Vendor PN         : FTR-1619-57     
 Vendor rev        : 1A  
 CC_BASE           : 0xD2

#sh idprom int g1/43

Transceiver Serial EEPROM Contents:
Common block:
 Identifier        :
 Connector         :  [0x07]
 Transceiver
  Speed            : [0x00]
  Media            : [0x00]
  Technology       : [0x00]
  Link Length      : [0x02]
  GE Comp Codes    : 1000BASE-LX [0x12]
  SONET Comp Codes : [0x00]
 Encoding          : Unspecified [0x00]
 BR, Nominal       : 21x100 MHz [0x15]
 Length(9u)        : 100 x 100 m [0x64]
 Length(50u)       : 55 x 10 m [0x37]
 Length(62.5u)     : 55 x 10 m [0x37]
 Length(Copper)    : 0 m [0x00]
 Vendor Name       : Infineon AG
 Vendor OUI        : 0x0 0x3 0x19
 Vendor PN         : V23818-M15-B57
 Vendor rev        : 54
 CC_BASE           : 0x0

Even if the exact details aren't encoded properly, you can generally find 
everything you need to know about the transceiver by searching for the 
vendor part number.

-- 
Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)