I have a lab. I am building a RHEL 5.2 cluster. I am bringing up the
nodes and need to get HA working for the network stack. I have hardcoded
each of the interface connections of the two CISCO 3548 switches at
100Mb Full Duplex.
Hardware:
IBM e326m
Kernel: 2.6.18-92.el5
NIC: tg3
cat /etc/modprobe.conf
alias eth0 tg3
alias eth1 tg3
alias bond0 bonding
options bond0 mode=1 miimon=100 max_bonds=2
[root@7969cle3 net]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
MASTER=bond0
SLAVE=yes
TYPE=Ethernet
DEVICE=eth0
HWADDR=00:11:25:c4:93:c6
BOOTPROTO=none
ONBOOT=yes
USERCTL=no
IPV6INIT=no
PEERDNS=yes
[root@7969cle3 net]# cat /etc/sysconfig/network-scripts/ifcfg-eth1
MASTER=bond0
SLAVE=yes
TYPE=Ethernet
DEVICE=eth1
HWADDR=00:11:25:c4:93:c7
BOOTPROTO=none
ONBOOT=yes
USERCTL=no
IPV6INIT=no
PEERDNS=yes
[root@7969cle3 net]# cat /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
IPADDR=10.23.48.8
NETMASK=255.255.255.0
BROADCAST=10.23.48.255
GATEWAY=10.23.48.1
ONBOOT=yes
BOOTPROT=none
USERCTL=no
PEERDNS=no
# HWADDR=00:11:25:c4:93:c6
# IPV6INIT=no
[root@7969cle3 net]#
[root@7969cle3 net]# ifconfig
bond0 Link encap:Ethernet HWaddr 00:11:25:C4:93:C6
inet addr:10.23.48.8 Bcast:10.23.48.255 Mask:255.255.255.0
inet6 addr: fe80::211:25ff:fec4:93c6/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:110166 errors:0 dropped:0 overruns:0 frame:0
TX packets:24536 errors:0 dropped:0 overruns:0 carrier:0
collisions:1720 txqueuelen:0
RX bytes:16599941 (15.8 MiB) TX bytes:11244999 (10.7 MiB)
eth0 Link encap:Ethernet HWaddr 00:11:25:C4:93:C6
inet6 addr: fe80::211:25ff:fec4:93c6/64 Scope:Link
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:62430 errors:0 dropped:0 overruns:0 frame:0
TX packets:24512 errors:0 dropped:0 overruns:0 carrier:0
collisions:1720 txqueuelen:1000
RX bytes:9382249 (8.9 MiB) TX bytes:11238386 (10.7 MiB)
Interrupt:177
eth1 Link encap:Ethernet HWaddr 00:11:25:C4:93:C6
inet6 addr: fe80::211:25ff:fec4:93c6/64 Scope:Link
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:47736 errors:0 dropped:0 overruns:0 frame:0
TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:7217692 (6.8 MiB) TX bytes:6613 (6.4 KiB)
Interrupt:185
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:11851 errors:0 dropped:0 overruns:0 frame:0
TX packets:11851 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3847241 (3.6 MiB) TX bytes:3847241 (3.6 MiB)
[root@7969cle3 net]#
[root@7969cle3 net]# ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
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: Half
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: g
Current message level: 0x000000ff (255)
Link detected: yes
[root@7969cle3 net]# ethtool eth1
Settings for eth1:
Supported ports: [ TP ]
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: Half
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: g
Current message level: 0x000000ff (255)
Link detected: yes
[root@7969cle3 net]#
** Notice that the interfaces are Half Duplex
[root@7969cle3 net]# mii-tool -v
eth0: no autonegotiation, 100baseTx-HD, link ok
product info: vendor 00:08:18, model 53 rev 0
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
flow-control
link partner: 100baseTx-HD
eth1: no autonegotiation, 100baseTx-HD, link ok
product info: vendor 00:08:18, model 53 rev 0
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
flow-control
link partner: 100baseTx-HD
[root@7969cle3 net]#
** Mii-tool concurs the half duplex state
I ran the command
mii-tool -F 100baseTx-FD eth0
mii-tool -F 100baseTx-FD eth1
I did a diff of output above to output after running (it did disconnect
my ssh session as it renegotiated the links) but no difference.
Tried to see what options I COULD set against the tg3 module:
[root@7969cle3 net]# modinfo -p tg3
tg3_debug:Tigon3 bitmapped debugging message enable value
????
Questions:
1) Where in /proc is duplex settings held
2) Am I correct in my assumption that settings established via
mii-tools or ethtools are NOT persistent across reboot and so settings
must be established in /etc/modules.conf to be persistent.
3) What module parameters do I set to force speed and duplex with
confidence it is correct?
Thanks,
Jeremey Wise
Senior Consultant
Arrow Enterprise Computing Solutions
RHCE,MCSE,CNE,PSE,TSM
JWise@xxxxxxxxx <mailto:JWise@xxxxxxxxx>
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