CentOS - Dec 2011 - 6.x - find interface with link up

In earlier versions 'mii-tool' would iterate over interfaces and show
which have link up.   In 6.x it wants an interface as a parameter.
What is the appropriate way to find which of some number of of
interfaces are connected?   Better yet, what is the least typing to
get the mac addresses of those interfaces?

-- 
  Les Mikesell
    lesmikesell at gmail.com

Les Mikesell wrote:
> In earlier versions 'mii-tool' would iterate over interfaces and
show
> which have link up.   In 6.x it wants an interface as a parameter.
> What is the appropriate way to find which of some number of of
> interfaces are connected?   Better yet, what is the least typing to
> get the mac addresses of those interfaces?
ethtool, or even lshw.

        mark

On 12/15/2011 12:45 PM, Les Mikesell wrote:
> In earlier versions 'mii-tool' would iterate over interfaces and
show
> which have link up.   In 6.x it wants an interface as a parameter.
> What is the appropriate way to find which of some number of of
> interfaces are connected?   Better yet, what is the least typing to
> get the mac addresses of those interfaces
/sbin/ip link ls

-- 
Benjamin Franz

On Dec 15, 2011, at 3:45 PM, Les Mikesell <lesmikesell at gmail.com>
wrote:
> In earlier versions 'mii-tool' would iterate over interfaces and
show
> which have link up.   In 6.x it wants an interface as a parameter.
> What is the appropriate way to find which of some number of of
> interfaces are connected?   Better yet, what is the least typing to
> get the mac addresses of those interfaces?
In 5 an 'ifconfig' without parameters would only list up interfaces and
one would have to do an 'ifconfig -a' to see all interfaces. Maybe still
true in 6?

-Ross