kernel-packages team mailing list archive

[Launchpad Bug Tracker <1007371@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1007371

Title:
  Precise - bonding without link aggregation

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  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

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007371/+subscriptions