[PVE-User] Bonding and packet loss

[Daniel]

Hey,

as i said: LACP is configured on my switches only.
2x HP Switches are connected to each other with 4x 1Gbe in a LACP Trunk.
My Proxmox hosts are connected with 1 Gbe to each Switch and the Bonding interface has mode 6 (balance-alb)

-- 
Grüsse
 
Daniel

Am 06.09.17, 13:41 schrieb "pve-user im Auftrag von IMMO WETZEL" <pve-user-bounces at pve.proxmox.com im Auftrag von IMMO.WETZEL at adtran.com>:

    Could you please provide a network diagram.
    Still valid is that lacp is just for a lag(l2 bonding) link between to l2 devices. If your switches are stacked they should be seen as one l2 device. if not, you cannot bond and use lacp. You need IP multipath to use the whole bandwidth of both links. 
    
    Immo
    
    -----Original Message-----
    From: pve-user [mailto:pve-user-bounces at pve.proxmox.com] On Behalf Of Daniel
    Sent: Wednesday, September 06, 2017 1:27 PM
    To: PVE User List
    Subject: Re: [PVE-User] Bonding and packetloss
    
    LACP is used for both switches.
    
    My Proxmox Servers are using bonding mode 6 but I get strange bandwith problems:
    
    target host .... host20
    ------------------------------------------------------------------
     run 1: 	 42.3 Mbits/sec
     run 2: 	 880 Mbits/sec
     run 3: 	 105 Mbits/sec
     run 4: 	 35.9 Mbits/sec
     run 5: 	 36.1 Mbits/sec
    ------------------------------------------------------------------
     average ....... 219.86 Mbits/sec
    
    
    -- 
    Grüsse
     
    Daniel
    
    Am 04.09.17, 15:31 schrieb "pve-user im Auftrag von Mark Schouten" <pve-user-bounces at pve.proxmox.com im Auftrag von mark at tuxis.nl>:
    
        You cannot just LACP over different switches. It should be a stack of switches.
        
        
        Met vriendelijke groeten,
        
        -- 
        Kerio Operator in de Cloud? https://www.kerioindecloud.nl/
        Mark Schouten  | Tuxis Internet Engineering
        KvK: 61527076 | http://www.tuxis.nl/
        T: 0318 200208 | info at tuxis.nl
        
        
        
         Van:   Daniel <daniel at linux-nerd.de> 
         Aan:   PVE User List <pve-user at pve.proxmox.com> 
         Verzonden:   1-9-2017 22:22 
         Onderwerp:   [PVE-User] Bonding and packetloss 
        
        Hi there, 
         
        here is a small overview if my Network: 
         
        2x HP Switches. Both are connected with 4x 1Gbit with a LACP Trunk to each other – Working as expected. 
         
        Now my Problem, I configured all my hosts with Bond Mode 6 and conncted 1 NIC to Switch One and the other to Switch Two 
        Sometimes I got packetloss and see a Kernel error like this: vmbr0: received packet on bond0 with own address as source address (addr:0c:c4:7a:aa:5c:e4, vlan:0) 
         
        Some hosts are working pretty well and some has Packet Loss. 
        After adding some “rules” to a host which has loss the error messages disappear but the loss (less loss) still exists. 
        Is there any special hint what can be the matter? When I change to active/passive mode all is fine. 
         
        This is my interfaces config which has packetloss: 
         
        auto lo 
        iface lo inet loopback 
         
        iface eno1 inet manual 
         
        iface eno2 inet manual 
         
        auto bond0 
        iface bond0 inet manual 
                        slaves eno1 eno2 
                        bond_miimon 100 
                        bond_mode 6 
         
        auto vmbr0 
        iface vmbr0 inet static 
                        address  10.0.2.111 
                        netmask  255.255.255.0 
                        gateway  10.0.2.1 
                        bridge_ports bond0 
                        bridge_stp off 
                        bridge_fd 0 
                        bridge_maxage 0 
                        bridge_ageing 0 
                        bridge_maxwait 0 
         
        I am absolutely without any glue ☹ tested a lot and nothing really helps to solve this problem. 
         
        -- 
        Grüsse 
         
        Daniel 
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