Public bug reported:
I have two servers : server "A" with Ubuntu 10.04_amd64 and server "B" with
fresh install Ubuntu 12.04_amd64. Server "A" has 4x Gigabit NIC (all in bond
802.3ad) and server "B" has 3x Gigabit NIC (all in bond 802.3ad). As switch is
802.3ad capable Cisco.
Throughput to server "A" is OK - from one PC with Gigabit NIC is ~925
Mbits/sec, from two PCs (tested simultaneously) is still 2x ~925 Mbits/sec.
Ethernet Channel Bonding Driver is v3.5.0 (November 4, 2008).
But throughput to server "B" (with the same NIC interfaces configuration
as server "A") is without link aggregation - from one PC with Gigabit
NIC is ~925 Mbits/sec, from two PCs is 2x ~460 Mbits/sec, from three PCs
is 3x ~305 Mbits/sec etc. With iptraf I see, that all port is working,
but without link aggregation.
------ Server "B" - interfaces ------
# The loopback network interface
auto lo
iface lo inet loopback
# Trunk all eth
auto eth0
iface eth0 inet manual
bond-master bond0
auto eth1
iface eth1 inet manual
bond-master bond0
auto eth2
iface eth2 inet manual
bond-master bond0
auto bond0
iface bond0 inet static
address 10.100.6.1
netmask 255.255.254.0
network 10.100.6.0
broadcast 10.100.7.255
gateway 10.100.7.1
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 192.168.1.1
dns-search domain.com
# setting bond
bond-slaves none
bond-mode 4
bond-miimon 100
# only for 802.3ad
bond-lacp-rate 1
----- cat /proc/net/bonding/bond0 -----
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
802.3ad info
LACP rate: fast
Min links: 0
Aggregator selection policy (ad_select): stable
Active Aggregator Info:
Aggregator ID: 1
Number of ports: 3
Actor Key: 17
Partner Key: 1001
Partner Mac Address: 58:8d:09:2f:ca:c8
Slave Interface: eth2
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:15:17:28:e9:a6
Aggregator ID: 1
Slave queue ID: 0
Slave Interface: eth0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:1b:21:1b:44:09
Aggregator ID: 1
Slave queue ID: 0
Slave Interface: eth1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:1b:21:2b:49:18
Aggregator ID: 1
Slave queue ID: 0
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: aggregation bonding precise
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https://bugs.launchpad.net/bugs/1007371
Title:
Precise - bonding without link aggregation
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