Date: Tue, 6 Oct 2015 17:57:10 -0400 From: Dean Forester <dean_forester@hotmail.com> To: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: RE: FreeBSD 10.2 - LAGG interfaces "possible flapping" during shutdown Message-ID: <SNT148-W14DDA5BDCC26EA66A7FE3390370@phx.gbl> In-Reply-To: <SNT148-W27016E6253E337E415407090370@phx.gbl> References: <SNT148-W27016E6253E337E415407090370@phx.gbl>
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Hi, Just in case it has an effect on things I have also included the switch side of the configuration below: # version 5.20, Release 1513P89# sysname HP_V1910-24G-PoE#vlan 1 arp detection enable#vlan 101 description MGMT VLAN - 192.168.1.0/24 arp detection enable#vlan 102 description VLAN 102 - 192.168.2.0/24 arp detection enable#vlan 103 description VLAN 103 - 192.168.3.0/24 arp detection enable#interface Vlan-interface1 ip address 192.168.0.3 255.255.255.0 #interface Vlan-interface101 ip address 192.168.1.3 255.255.255.0 #interface Vlan-interface102 ip address 192.168.2.3 255.255.255.0 #interface Vlan-interface103 ip address 192.168.3.3 255.255.255.0 #interface Bridge-Aggregation2 port link-type hybrid port hybrid vlan 101 to 103 tagged port hybrid vlan 1 untagged link-aggregation mode dynamic arp detection trust#interface GigabitEthernet1/0/5 port link-type hybrid port hybrid vlan 101 to 103 tagged port hybrid vlan 1 untagged stp edged-port enable port link-aggregation group 2#interface GigabitEthernet1/0/6 port link-type hybrid port hybrid vlan 101 to 103 tagged port hybrid vlan 1 untagged stp edged-port enable port link-aggregation group 2#interface GigabitEthernet1/0/7 port link-type hybrid port hybrid vlan 101 to 103 tagged port hybrid vlan 1 untagged stp edged-port enable port link-aggregation group 2#interface GigabitEthernet1/0/8 port link-type hybrid port hybrid vlan 101 to 103 tagged port hybrid vlan 1 untagged stp edged-port enable port link-aggregation group 2# The view of the LAGG from the system side:root@Pine:~ # ifconfig lagg1 lagg1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=403bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,VLAN_HWTSO> ether a0:36:9f:64:6d:d5 nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> media: Ethernet autoselect status: active laggproto lacp lagghash l2,l3,l4 laggport: igb1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: igb4 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: igb7 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: igb8 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> The one thing that I just noticed is that I have VLAN 1 untagged on the Bridge Aggregate 2 but I can't see how that would cause this affect. My assumption is that the LAGG interface is being shutdown but the four ethernet ports are not; therefore the kernel notices traffic on all four ports and complains. With this same server I also have another LAGG setup that is going to a Cisco SG200-26 switch (which carries VLAN 104 and VLAN 105) with the same issue. All 8 interfaces show up during the shutdown after the Uptime message with the Interface stopped DISTRIBUTING, possible flapping issue. My main concern at this point is how can I do a complete system reboot from remote without it hanging with no access to the power button or console. Regards, Dean From: dean_forester@hotmail.com To: freebsd-questions@freebsd.org Subject: FreeBSD 10.2 - LAGG interfaces "possible flapping" during shutdown Date: Tue, 6 Oct 2015 12:28:01 -0400 Hi I am having an issue with a new FreeBSD 10.2-RELEASE system when using LAGGs. Everything works fine until I try to do a reboot of the system. With this issue the system does a shutdown but reports an error with the interfaces that belong to the LAGG (which also have VLANs define) and then halts, it will not reboot; a power cycle is required. root@Pine:~ # uname -a FreeBSD Pine.local 10.2-RELEASE FreeBSD 10.2-RELEASE #0 r286666: Wed Aug 12 15:26:37 UTC 2015 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64 /etc/rc.conf: if_vlan_load="YES" # HP V1910-24G Switch Trunk ifconfig_igb1="up mtu 1500" ifconfig_igb4="up mtu 1500" ifconfig_igb7="up mtu 1500" ifconfig_igb8="up mtu 1500" # Setup new Virtual Interfaces cloned_interfaces="lagg1 vlan101 vlan102 vlan103" # LAGG Configuration ifconfig_lagg1="laggproto lacp laggport igb1 laggport igb4 laggport igb7 laggport igb8" # Setup VLANs ifconfig_vlan101="inet 192.168.1.208/24 vlan 101 vlandev lagg1" ifconfig_vlan102="inet 192.168.2.208/24 vlan 102 vlandev lagg1" ifconfig_vlan103="inet 192.168.3.208/24 vlan 103 vlandev lagg1" # Setup extra IPs for Layer 3 Load Balancing ifconfig_vlan101_aliases="inet 192.168.1.209/32" ifconfig_vlan102_aliases="inet 192.168.2.209/32" ifconfig_vlan103_aliases="inet 192.168.3.209/32" Errors on shutdown -r now Uptime: 3d20h44m15sigb8: Interface stopped DISTRIBUTING, possible flappingigb1: Interface stopped DISTRIBUTING, possible flapping igb7: Interface stopped DISTRIBUTING, possible flapping igb4: Interface stopped DISTRIBUTING, possible flapping Has anyone else run into this behavior with LAGGs and VLANs? Any help would greatly be appreciated. Regards, Dean Forester dean_forester@hotmail.com
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