Re: ethernet bonding and interface speed
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Birju Prajapati wrote:
> Hi,
> I have two network cards that are both displaying as such:
>
> dbadmin@livedb:~$ sudo mii-tool
> eth0: no autonegotiation, 100baseTx-HD, link ok
> eth1: no autonegotiation, 100baseTx-HD, link ok
>
> I have bonded them in modprope.d as such:
>
> alias bond0 bonding
> options bonding mode=0 miimon=100 downdelay=200 updelay=200
>
> However the bonded interface is only 10Meg Half duplex:
>
> dbadmin@livedb:~$ sudo mii-tool bond0
> bond0: 10 Mbit, half duplex, link ok
>
> Why is this? Is it safe to use 'ethtool -s' to increase the speed of
> the bonded interface? I don't want it to crash as the server is hosted
> elsewhere and would involve a long trip to fix!
>
> Thanks in advance,
> Birju
>
> FYI:
>
> dbadmin@livedb:~$ /sbin/ifconfig
> bond0 Link encap:Ethernet HWaddr 00:16:35:82:6F:B2
> inet addr:10.114.1.2 Bcast:10.114.255.255 Mask:255.255.0.0
> inet6 addr: fe80::216:35ff:fe82:6fb2/64 Scope:Link
> UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
> RX packets:2015931 errors:0 dropped:0 overruns:0 frame:0
> TX packets:16802 errors:36 dropped:0 overruns:0 carrier:36
> collisions:482 txqueuelen:0
> RX bytes:141796056 (135.2 MiB) TX bytes:2176740 (2.0 MiB)
>
> eth0 Link encap:Ethernet HWaddr 00:16:35:82:6F:B2
> inet6 addr: fe80::216:35ff:fe82:6fb2/64 Scope:Link
> UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
> RX packets:1007946 errors:0 dropped:0 overruns:0 frame:0
> TX packets:8402 errors:20 dropped:0 overruns:0 carrier:20
> collisions:264 txqueuelen:1000
> RX bytes:70971311 (67.6 MiB) TX bytes:1090935 (1.0 MiB)
> Interrupt:66 Memory:fc000000-fc011100
>
> eth1 Link encap:Ethernet HWaddr 00:16:35:82:6F:B2
> inet6 addr: fe80::216:35ff:fe82:6fb2/64 Scope:Link
> UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
> RX packets:1007985 errors:0 dropped:0 overruns:0 frame:0
> TX packets:8400 errors:16 dropped:0 overruns:0 carrier:16
> collisions:218 txqueuelen:1000
> RX bytes:70824745 (67.5 MiB) TX bytes:1085805 (1.0 MiB)
> Interrupt:114 Memory:fa000000-fa011100
>
> 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:28961 errors:0 dropped:0 overruns:0 frame:0
> TX packets:28961 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:9832203 (9.3 MiB) TX bytes:9832203 (9.3 MiB)
>
>
Greetings Birju:
I don't think that I would believe the statistics that mii-tool is
reporting. I have a similar setup - two NICs bonded into a single
channel. Both adapters are 1Gb, connected into a Gb switch:
mii-tool
eth0: negotiated 100baseTx-FD flow-control, link ok
eth1: negotiated 100baseTx-FD flow-control, link ok
mii-tool bond0
bond0: 10 Mbit, half duplex, link ok
I know for a fact that the interfaces are running at 1Gb, and the bond
averages about 600 Mb/sec.
You might try pushing a large file onto the box with scp or a similar
tool that will report the time that the copy takes, just to verify your
speed is greater than 10Mb.
- -Scott
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