[Bug 1041070] Re: 802.3ad bond interface have show high RX dropped packets

[Steve Boyle]

I'm seeing the same thing.  Yes, my switch is configured for 802.3ad.
The bond comes up but drops 2pps consistently.  I see the vast majority
of the drops on the bond0 interface, the underlying eth0 and eth1
interfaces each show much less loss than bond0.

bond0     Link encap:Ethernet  HWaddr d4:ae:52:9b:7d:ef
          inet addr:10.10.2.152  Bcast:10.10.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:9000  Metric:1
          RX packets:1830498255 errors:9389 dropped:683402 overruns:0 frame:9371
          TX packets:1503988811 errors:0 dropped:89 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:12421268594512 (12.4 TB)  TX bytes:6420158358964 (6.4 TB)

eth0      Link encap:Ethernet  HWaddr d4:ae:52:9b:7d:ef
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:9000  Metric:1
          RX packets:911558907 errors:4627 dropped:153 overruns:0 frame:4589
          TX packets:755225077 errors:0 dropped:59 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:6200006841270 (6.2 TB)  TX bytes:3423624108536 (3.4 TB)
          Interrupt:35

eth1      Link encap:Ethernet  HWaddr d4:ae:52:9b:7d:ef
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:9000  Metric:1
          RX packets:918939348 errors:4762 dropped:159 overruns:0 frame:4782
          TX packets:748763734 errors:0 dropped:30 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:6221261753242 (6.2 TB)  TX bytes:2996534250428 (2.9 TB)
          Interrupt:38

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:685523919 errors:0 dropped:0 overruns:0 frame:0
          TX packets:685523919 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:9961540573942 (9.9 TB)  TX bytes:9961540573942 (9.9 TB)


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: 2
        Actor Key: 17
        Partner Key: 17
        Partner Mac Address: 00:01:e8:d6:a9:4e

Slave Interface: eth1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: d4:ae:52:9b:7d:ef
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: d4:ae:52:9b:7d:ee
Aggregator ID: 1
Slave queue ID: 0

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https://bugs.launchpad.net/bugs/1041070

Title:
  802.3ad bond interface have show high RX dropped packets

Status in “bridge-utils” package in Ubuntu:
  Incomplete

Bug description:
  On Ubuntu 12.04.1 LTS

  With the following networks settings:

  /etc/network/interfaces
  auto lo
  iface lo inet loopback

  auto eth0
  iface eth0 inet dhcp

  # Network: instances
  # Bonding
  auto eth2
  iface eth2 inet manual
      bond-master bond0
  auto eth4
  iface eth4 inet manual
      bond-master bond0

  auto bond0
  iface bond0 inet manual
      bond-mode 802.3ad
      bond-miimon 100
      bond-lacp-rate 1
      bond-slaves none

  The RX packets drop counter increase very fast:

  bond0     Link encap:Ethernet  HWaddr 00:10:18:e0:5e:a4
            inet6 addr: fe80::210:18ff:fee0:5ea4/64 Scope:Link
            UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
            RX packets:5912 errors:0 dropped:3223 overruns:0 frame:0
            TX packets:110 errors:0 dropped:0 overruns:0 carrier:0
            collisions:0 txqueuelen:0
            RX bytes:585020 (585.0 KB)  TX bytes:13804 (13.8 KB)

  All packages are up to date:

  uname -a
  Linux std006 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

  
  apt-cache policy ifenslave-2.6
  ifenslave-2.6:
    Installed: 1.1.0-19ubuntu5
    Candidate: 1.1.0-19ubuntu5
    Version table:
   *** 1.1.0-19ubuntu5 0
          500 http://10.5.0.1/ubuntu/ precise/main amd64 Packages
          100 /var/lib/dpkg/status
  ---
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: amd64
  DistroRelease: Ubuntu 12.04
  Package: bridge-utils 1.5-2ubuntu6
  PackageArchitecture: amd64
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm-256color
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
  Tags:  precise
  Uname: Linux 3.2.0-29-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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