[CentOS] link speed

2008-09-18 Thread Craig White 
Is there a command line way to tell me whether a ethernet connection is
100 BaseT or Gigabit Ethernet?

Craig

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Re: [CentOS] link speed

2008-09-18 Thread Bob Beers 
On Thu, Sep 18, 2008 at 2:28 PM, Craig White [EMAIL PROTECTED] wrote:
 Is there a command line way to tell me whether a ethernet connection is
 100 BaseT or Gigabit Ethernet?

ethtool?
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Re: [CentOS] link speed

2008-09-18 Thread Stephen Harris 
 Is there a command line way to tell me whether a ethernet connection is
 100 BaseT or Gigabit Ethernet?

mii-diag
mii-tool
ethtool

-- 

rgds
Stephen
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Re: [CentOS] link speed

2008-09-18 Thread Pintér Tibor 



Craig White írta:

Is there a command line way to tell me whether a ethernet connection is
100 BaseT or Gigabit Ethernet?


mii-tool

t
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RE: [CentOS] link speed

2008-09-18 Thread John Kordash 
 Craig White írta:
  Is there a command line way to tell me whether a ethernet
 connection is
  100 BaseT or Gigabit Ethernet?

 mii-tool


My experience with mii-tool on CentOS4 and 5 is that it won't show link speed 
above 100 even if it is.  If the OP is trying to differentiate 100 vs. 1000, 
then I would suggest using ethtool instead.

-John
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RE: [CentOS] link speed

2008-09-18 Thread Craig White 
On Thu, 2008-09-18 at 15:05 -0400, John Kordash wrote:
  Craig White írta:
   Is there a command line way to tell me whether a ethernet
  connection is
   100 BaseT or Gigabit Ethernet?
 
  mii-tool
 
 
 My experience with mii-tool on CentOS4 and 5 is that it won't show link speed 
 above 100 even if it is.  If the OP is trying to differentiate 100 vs. 1000, 
 then I would suggest using ethtool instead.

yup...mii-tool didn't report what I wanted...

# mii-tool
eth0: negotiated 100baseTx-FD flow-control, link ok
eth1: negotiated 100baseTx-FD flow-control, link ok

but ethtool did...
# ethtool eth0
Settings for eth0:
Supported ports: [ MII ]
Supported link modes:   10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes:  10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: d
Current message level: 0x00ff (255)
Link detected: yes
[EMAIL PROTECTED] kbenedetto]# ethtool eth1
Settings for eth1:
Supported ports: [ MII ]
Supported link modes:   10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes:  10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: d
Current message level: 0x00ff (255)
Link detected: yes

Thanks

Craig

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