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hjazz6 01-12-2009 02:25 AM
Cannot ping other servers
 
Hi,

I have an IBM Bladecenter HS21 with 3 blade servers. All 3 blade servers were initially installed with RedHat Linux 4. I then installed ixMOS on one of the blade servers, and Mandriva Linux was also installed (over RedHat) automatically along with ixMOS.

Now, I have some network problems. The other 2 servers with RedHat can ping each other, but it appears that the server with ixMOS/Mandriva Linux is isolated, that is, I can't ping the other 2 servers from it, and I can't ping it from the other 2 servers.

Does anyone have any ideas on what is wrong and how I can solve this problem? One more thing, my installation of Mandriva Linux has no GUI, so I have to do everything using the command line interface.

Thank you.

linuxlover.chaitanya 01-12-2009 03:19 AM
Do you know that the newly installed server picks up your ethernet card or not? lspci will give you the idea. Post the output here.

hjazz6 01-12-2009 09:14 PM
I get the error "command not found" when I tried to use lspci.

One more thing I found out.

I looked at /etc/sysconfig/network-scripts/ifcfg-eth0 of the Mandriva server, which contains the following:

Code:
DEVICE = eth0
BOOTPROTO=static
IPADDR=192.168.168.202
NETMASK=255.255.255.0
GATEWAY=192.168.168.1
ONBOOT=yes
METRIC=5
MII_NOT_SUPPORTED=yes
USERCTL=no
DNS1=192.168.168.2
RESOLV_MODS=yes
LINK_DETECTION_DELAY=6
IPV6INIT=no
IPV6to4INIT=no
and noticed that if the line MII_NOT_SUPPORTED equals "yes", then the server has the IP address 192.168.168.202 upon startup, but if MII_NOT_SUPPORTED=no, then the server has no IP address upon startup, and I have to manually assign one.

Also, when I typed "mii-tool" on the Mandriva server (with MII_NOT_SUPPORTED=yes), I get the following:

Code:
SIOCGMIIPHY on 'eth0' failed: Operation not supported
SIOCGMIIPHY on 'eth1' failed: Operation not supported
SIOCGMIIPHY on 'eth2' failed: Resource temporarily unavailable
SIOCGMIIPHY on 'eth3' failed: Resource temporarily unavailable
no MII interfaces found
But on the 2 RedHat servers, which didn't contain the MII_NOT_SUPPORTED lines, I get the following output:

Code:
eth0: negotiated 10baseT-HD, link ok
SIOCGMIIPHY on 'eth1' failed: Resource temporarily unavailable
SIOCGMIIPHY on 'eth2' failed: Operation not supported
SIOCGMIIPHY on 'eth3' failed: Operation not supported

I ran the ethtool program and got the following output.

output of "ethtool -t etho" on Mandriva server

Code:
The test result is FAIL
The test extra info:
nvram test (online)    0
link test (online)        1
register test (offline)  0
memory test (offline)  0
loopback test (offline)  0
interrupt test (offline)  0
output of "ethtool -t etho" on both RedHat servers

Code:
The test result is PASS
The test extra info:
register test (offline)  0
memory test (offline)  0
loopback test (offline) 0
nvram test (online)    0
interrupt test (online)  0
link test (online)        0
output of "ethtool eth0" on Mandriva server:

Code:
Settings for eth0:
  Supported ports: [ FIBRE ]
  Supported link modes: 1000baseT/Half 1000baseT/Full
  Supports auto-negotiation: Yes
  Advertised link modes: 1000baseT/Half 1000baseT/Full
  Advertised auto-negotiation: Yes
  Speed: Unknown! (65535)
  Duplex: Unknown! (255)
  Port: FIBRE
  PHYAD: 1
  Transceiver: internal
  Auto-negotiation: on
  Supports Wake-on: g
  Wake-on: d
  Current message level: 0x000000ff (255)
  Link detected: no
output of "ethtool eth0" on RedHat servers:

Code:
Settings for eth0:
  Supported ports: [ FIBRE ]
  Supported link modes: 1000baseT/Full
  Supports auto-negotiation: Yes
  Advertised link modes: 1000baseT/Full
  Advertised auto-negotiation: Yes
  Speed: 1000 Mb/s
  Duplex: Full
  Port: FIBRE
  PHYAD: 2
  Transceiver: internal
  Auto-negotiation: on
  Supports Wake-on: g
  Wake-on: g
  Link detected: yes
Does this mean that there are some problems with the eth0 interface of the Mandriva server?

Thank you.


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