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Bug #3976

closed

VLAN Interfaces on LAGG get orphaned on LAGG change

Added by Jens Weibler about 10 years ago. Updated over 8 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
Interfaces
Target version:
2.2
Start date:
11/03/2014
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Release Notes:
Affected Version:
2.1.5
Affected Architecture:

Description

Reproduce:

1. Create LAGG with e.g. em3 + em4, LACP and a nice description
2. Create a few vlans and assign them to your LAGG-device
3. Think about a nicer description and change the LAGG-device again. Now all your vlan interfaces on the lagg are orphaned and have no parent (device) anymore.

lagg1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=4219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC,VLAN_HWTSO>
        ether <DELETED>
        inet6 <DELETED> prefixlen 64 scopeid 0xf
        nd6 options=3<PERFORMNUD,ACCEPT_RTADV>
        media: Ethernet autoselect
        status: active
        laggproto lacp
        laggport: em3 flags=18<COLLECTING,DISTRIBUTING>
        laggport: em2 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>

lagg1_vlan15: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 15                                                                                        00
        options=103<RXCSUM,TXCSUM,TSO4>
        ether <DELETED>
        inet6 <DELETED>%lagg1_vlan15 prefixlen 64 scopeid 0x11
        inet 192.168.15.1 netmask 0xffffff00 broadcast 192.168.15.255
        nd6 options=1<PERFORMNUD>
        media: Ethernet autoselect
        status: active
        vlan: 15 vlanpcp: 0 parent interface: lagg1

Afterwards

lagg1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=4219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC,VLAN_HWTSO>
        ether <DELETED>
        inet6 <DELETED>%lagg1 prefixlen 64 scopeid 0xf
        nd6 options=3<PERFORMNUD,ACCEPT_RTADV>
        media: Ethernet autoselect
        status: active
        laggproto lacp
        laggport: em4 flags=0<>
        laggport: em2 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>

lagg1_vlan15: flags=8803<UP,BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=103<RXCSUM,TXCSUM,TSO4>
        ether <DELETED>
        inet6 <DELETED>%lagg1_vlan15 prefixlen 64 scopeid 0x11
        inet 192.168.15.1 netmask 0xffffff00 broadcast 192.168.15.255
        nd6 options=1<PERFORMNUD>
        vlan: 0 vlanpcp: 0 parent interface: <none>

See also https://forum.pfsense.org/index.php?topic=83605.0

First I thought it only happens on changing the LAGG members. But just changing the description is enough. If this bug (if you need a name - how about batman bug?) can't be fixed, I suggest a big fat warning on the LAGG configuration page.

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