]# ethtool -m eth3         Identifier     …

Friday, 29th March 2024

Comment on How to configure bond0 bonding and network bridging for KVM Virtual machines on Redhat / CentOS / Fedora Linux by admin.

]# ethtool -m eth3
        Identifier                                : 0x03 (SFP)
        Extended identifier                       : 0x04 (GBIC/SFP defined by 2-wire interface ID)
        Connector                                 : 0x00 (unknown or unspecified)
        Transceiver codes                         : 0x00 0x00 0x00 0x08 0x00 0x00 0x00 0x00 0x00
        Transceiver type                          : Ethernet: 1000BASE-T
        Encoding                                  : 0x01 (8B/10B)
        BR, Nominal                               : 1200MBd
        Rate identifier                           : 0x00 (unspecified)
        Length (SMF,km)                           : 0km
        Length (SMF)                              : 0m
        Length (50um)                             : 0m
        Length (62.5um)                           : 0m
        Length (Copper)                           : 100m
        Length (OM3)                              : 0m
        Laser wavelength                          : 0nm
        Vendor name                               : OEM
        Vendor OUI                                : 00:90:65
        Vendor PN                                 : GLC-T10/100/1000
        Vendor rev                                : A
        Option values                             : 0x00 0x10
        Option                                    : TX_DISABLE implemented
        BR margin, max                            : 0%
        BR margin, min                            : 0%
        Vendor SN                                 : S2CODFTR0800047
        Date code                                 : 191029
        Optical diagnostics support               : No
 

admin Also Commented

How to configure bond0 bonding and network bridging for KVM Virtual machines on Redhat / CentOS / Fedora Linux

One useful command related is to have a list of all ethernet cards and dump them to a file for later use.
The simplest way to do it:

# list only ethernets and macs
ip link | awk '{print $2}'
 

Another important thing I forgot to mention in article it is good to define HWADDR to each and every eth{0,1,2,3} etc. configuration 

 

 


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