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HA MTU error. Shuts down secondary.

Simon Shaw
Hi, I have version 8.003 with HA setup as Active/Passive.

Two machines are identical.  (Dell R210's)
When enabling HA I'm getting an MTU error on the heartbeat link interface and the passive machine shuts down.
Ports are connected via a straight through ethernet cable which has worked previously.

I thought this bug was fixed a long time ago?

Hardware is: eth1 [Broadcom Corporation NetXtreme II BCM5716 Gigabit Ethernet]
Auto negotiation: On
Supported link modes: 10baseT/Full,10baseT/Half,100baseT/Full,100baseT/Half,1000baseT/Full
MAC Address: 00:26:b9:83:f9:c1
Virtual MAC Address: 00:1a:8c:f0:e3:41
Interrupt (IRQ): 17
PCI Device ID: 0x163b:0x2a5
MII capable: No
HA link monitoring: Yes


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  • 0
    The MTU will either be 1500 or 2000. Normally it will be 2000 for megabit connections or 1500 for gigabit. You can change the mtu on the master to 1500 if set to auto or 2000. If that doesn't work, set it manually to 2000. If *that* doesn't work, then one of the interfaces is most likely defective.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0
    How to change MTU?  No option under Hardware menu....
  • 0
    In the Interface defintion rather than on the 'Hardware' tab,

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0 in reply to BAlfson
    HA interfaces don't show in the Interfaces menu....
  • 0
    OK Bob sent edit instructions via console.
    Included here for completeness.


    Console or SSH as root:
     
    You can run ifconfig to see the existing MTU, then change it
     
    cc
    ha
    advanced
    mtu$
    =2000
    or         =1500 

    You need to do this on both the primary and secondary system.
    I set both to 1500, by default mtu$ is AUTO.

    All working now, but is this a bug as my adapters are pretty common and on supported hardware I believe.  Dell R210 standard onboard Broadcom NICs.

    Cheers.
  • 0
    Will this bug be solved? It suddenly appeared on our biggest customer site.
  • 0
    This happens very rarely.  When it happened to another customer where I could go on-site, neither we nor Astaro could determine why it had happened, and we were working with Astaro appliances!  In that case, I think it was a question of moving from cluster to Hot-Standby, but I was less interested in having Astaro figure it out than I was in getting a quick fix and getting home before mid-night!  In any case, JFK, I don't think Astaro has been able to reproduce this anomaly in order to find the cause.  Astaro Support should take care of your customer's problem quickly if the fix above doesn't work.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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