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[Launchpad Bug Tracker <971522@xxxxxxxxxxxxxxxxxx>]

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New machine, stock 10.04 LTS 64bit build.

apt-get upgrade/update etc.

apt-get install linux-headers-server-lts-backport-natty linux-image-
server-lts-backport-natty ifenslave ethtool

root@newsztcjptnfs03:~# uname -a
Linux newsztcjptnfs03 2.6.38-13-server #56~lucid1-Ubuntu SMP Tue Feb 14 03:35:38 UTC 2012 x86_64 GNU/Linux

root@newsztcjptnfs03:~# dpkg --list|grep ifenslave
ii  ifenslave-2.6                           1.1.0-14ubuntu2.2                 Attach and detach slave interfaces to a bond

root@newsztcjptnfs03:~# dpkg --list|grep ethtool
ii  ethtool                                 6+20091202-1ubuntu1               display or change Ethernet device settings

Bonding config:

root@newsztcjptnfs03:~# cat /etc/network/interfaces 
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
	address 10.129.144.68
	netmask 255.255.255.0
	gateway 10.129.144.254

# bond - dual 10g
auto bond0
iface bond0 inet static
	address 192.168.101.3
	netmask 255.255.255.0
	bond_miimon 100
	bond_mode 0
	mtu 9000

auto eth4
iface eth4 inet manual
	bond-master bond0

auto eth5
iface eth5 inet manual
	bond-master bond0


Interface stats:


root@newsztcjptnfs03:~# ethtool eth4
Settings for eth4:
	Supported ports: [ TP ]
	Supported link modes:   1000baseT/Full 
	                        10000baseT/Full 
	Supports auto-negotiation: Yes
	Advertised link modes:  1000baseT/Full 
	                        10000baseT/Full 
	Advertised pause frame use: No
	Advertised auto-negotiation: Yes
	Link partner advertised link modes:  Not reported
	Link partner advertised pause frame use: No
	Link partner advertised auto-negotiation: No
	Speed: 10000Mb/s
	Duplex: Full
	Port: Twisted Pair
	PHYAD: 0
	Transceiver: external
	Auto-negotiation: on
	MDI-X: Unknown
	Supports Wake-on: d
	Wake-on: d
	Current message level: 0x00000007 (7)
	Link detected: yes

root@newsztcjptnfs03:~# ethtool eth5
Settings for eth5:
	Supported ports: [ TP ]
	Supported link modes:   1000baseT/Full 
	                        10000baseT/Full 
	Supports auto-negotiation: Yes
	Advertised link modes:  1000baseT/Full 
	                        10000baseT/Full 
	Advertised pause frame use: No
	Advertised auto-negotiation: Yes
	Link partner advertised link modes:  Not reported
	Link partner advertised pause frame use: No
	Link partner advertised auto-negotiation: No
	Speed: 10000Mb/s
	Duplex: Full
	Port: Twisted Pair
	PHYAD: 0
	Transceiver: external
	Auto-negotiation: on
	MDI-X: Unknown
	Supports Wake-on: d
	Wake-on: d
	Current message level: 0x00000007 (7)
	Link detected: yes
root@newsztcjptnfs03:~# 


And finally, the wrong info from ifenslave (Speed: 100Mbps)


root@newsztcjptnfs03:~# cat /proc/net/bonding/bond0 
Ethernet Channel Bonding Driver: v3.7.0 (June 2, 2010)

Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 0
Up Delay (ms): 0
Down Delay (ms): 0

Slave Interface: eth4
MII Status: up
Speed: 100 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 68:05:ca:05:6f:4b
Slave queue ID: 0

Slave Interface: eth5
MII Status: up
Speed: 100 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 68:05:ca:05:6f:4a
Slave queue ID: 0


In short, I believe ifenslave can't handle 10Gig interface speeds?


Rgds,
--Dave.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Incomplete

-- 
bonding info reports wrong speed
https://bugs.launchpad.net/bugs/971522
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