search for: garp

After Quick Migration, the network is not immediately operational in the current context when receiving RNDIS_STATUS_MEDIA_CONNECT event. So, I put the netif_notify_peers() into a scheduled work, otherwise GARP packet will not be sent after quick migration, and cause network disconnection. Thanks to Mike Surcouf <mike at surcouf.co.uk> for reporting the bug and testing the patch. This patch should also be backported to stable kernel 2.6.32 and later. Signed-off-by: Haiyang Zhang <haiyangz at m...

After Quick Migration, the network is not immediately operational in the current context when receiving RNDIS_STATUS_MEDIA_CONNECT event. So, I put the netif_notify_peers() into a scheduled work, otherwise GARP packet will not be sent after quick migration, and cause network disconnection. Thanks to Mike Surcouf <mike at surcouf.co.uk> for reporting the bug and testing the patch. This patch should also be backported to stable kernel 2.6.32 and later. Signed-off-by: Haiyang Zhang <haiyangz at m...

...elease. It was included upstream as of v3.3-rc1. It has been tested and confirmed to resolve http://bugs.launchpad.net/bugs/1154608 . commit 08e34eb14fe4cfd934b5c169a7682a969457c4ea Author: Laszlo Ersek <lersek at redhat.com> Date: Sun Dec 11 01:48:59 2011 +0000 xen-netfront: delay gARP until backend switches to Connected Sincerely, Joseph Salisbury

...elease. It was included upstream as of v3.3-rc1. It has been tested and confirmed to resolve http://bugs.launchpad.net/bugs/1154608 . commit 08e34eb14fe4cfd934b5c169a7682a969457c4ea Author: Laszlo Ersek <lersek at redhat.com> Date: Sun Dec 11 01:48:59 2011 +0000 xen-netfront: delay gARP until backend switches to Connected Sincerely, Joseph Salisbury

The hv_netvsc gets RNDIS_STATUS_MEDIA_CONNECT event after the VM is live migrated. Adding call to netif_notify_peers() for this event to send GARP (Gratuitous ARP) to notify network peers. Otherwise, the VM's network connection may stop after a live migration. This patch should also be applied to stable kernel 2.6.32 and later. Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com> Signed-off-by: Hank Janssen <hjanssen at mic...

The hv_netvsc gets RNDIS_STATUS_MEDIA_CONNECT event after the VM is live migrated. Adding call to netif_notify_peers() for this event to send GARP (Gratuitous ARP) to notify network peers. Otherwise, the VM's network connection may stop after a live migration. This patch should also be applied to stable kernel 2.6.32 and later. Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com> Signed-off-by: Hank Janssen <hjanssen at mic...

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...peers become unable to talk to the guest. A sufficient two-parts condition to prevent the above is: (1) ensure that the backend only moves to Connected xenbus state after its hotplug scripts completed, ie. the netback interface got added to the bridge; and (2) ensure the frontend only queues the gARP when it sees the backend move to Connected. These two together provide complete ordering. Sub-condition (1) is satisfied by pvops commit 43223efd9bfd. In general, the full condition is sufficient, not necessary, because, according to [1], live migration has been working for a long time without sa...

...peers become unable to talk to the guest. A sufficient two-parts condition to prevent the above is: (1) ensure that the backend only moves to Connected xenbus state after its hotplug scripts completed, ie. the netback interface got added to the bridge; and (2) ensure the frontend only queues the gARP when it sees the backend move to Connected. These two together provide complete ordering. Sub-condition (1) is satisfied by pvops commit 43223efd9bfd. In general, the full condition is sufficient, not necessary, because, according to [1], live migration has been working for a long time without sa...

...peers become unable to talk to the guest. A sufficient two-parts condition to prevent the above is: (1) ensure that the backend only moves to Connected xenbus state after its hotplug scripts completed, ie. the netback interface got added to the bridge; and (2) ensure the frontend only queues the gARP when it sees the backend move to Connected. These two together provide complete ordering. Sub-condition (1) is satisfied by pvops commit 43223efd9bfd. In general, the full condition is sufficient, not necessary, because, according to [1], live migration has been working for a long time without sa...

...8 Chipset QuickData Technology Device (rev 22) ??? Subsystem: NEC Corporation Device 8372 ??? Kernel driver in use: ioatdma ??? Kernel modules: ioatdma # lsmod Module????????????????? Size? Used by autofs4??????????????? 27000? 3 sunrpc??????????????? 267620? 1 8021q????????????????? 20362? 0 garp??????????????????? 7152? 1 8021q stp???????????????????? 2218? 1 garp llc???????????????????? 5418? 2 garp,stp cpufreq_ondemand?????? 10544? 8 acpi_cpufreq??????????? 7763? 1 freq_table????????????? 4936? 2 cpufreq_ondemand,acpi_cpufreq mperf?????????????????? 1557? 1 acpi_cpufreq ipt_REJECT?????...

Dear All, I have a set of environental maps and presence-only points for some species. How can I generate distributions models on R using these presence-only data? What packages and functions can I use to do so? Kind regards, Miltinho Brazil [[alternative HTML version deleted]]

Hi all, I have plan to replace my Centos5.7 VM with newer version. The VM works as our network gateway. I want to ask from your experience, will it be a bad decision? My concern is that since the Mac Address of the gateway will change, will it disrupt the network? How fast the Switches can recognize the new mac? Any other pitfall? Thanks Fajar.

...2647 1 nfsd auth_rpcgss 44949 1 nfsd sunrpc 262864 20 nfsd,lockd,nfs_acl,auth_rpcgss exportfs 4236 1 nfsd bnx2fc 90539 0 fcoe 23298 0 libfcoe 56791 2 bnx2fc,fcoe 8021q 25349 0 garp 7152 1 8021q stp 2218 1 garp libfc 108670 3 bnx2fc,fcoe,libfcoe llc 5546 2 garp,stp scsi_transport_fc 55299 3 bnx2fc,fcoe,libfc scsi_tgt 12077 1 scsi_transport_fc ipt_REJECT 2351 2 nf_c...

On Mon, Jan 22, 2018 at 10:38 PM, Nathan March <nathan at gt.net> wrote: > Just a heads up that I'm seeing major stability problems on these builds. > Didn't have console capture setup unfortunately, but have seen my test > hypervisor hard lock twice over the weekend. > > This is with xpti being used, rather than the shim. Thanks for the heads-up. It's been

...rule sets up and running? The rules sets allow the two firewalls to talk explicity via vrrp, and since keepalived actually controls the virtual IP addresses it sends out gratuitious arps when it takes over. So even though both boxes have the nat tables built out only the one that has sent out the garps is actually listening on those IPs. Does leaving the nat tables built out like that on a hot spare open up any potential security holes? IE is this a ok, or should I run routestopped to unload the nat tables and set the rule sets to routestopped?

...ofile> <loadInformation>SIP70.8-3-3SR2S</loadInformation> <vendorConfig> <disableSpeaker>false</disableSpeaker> <disableSpeakerAndHeadset>false</disableSpeakerAndHeadset> <pcPort>0</pcPort> <settingsAccess>1</settingsAccess> <garp>0</garp> <voiceVlanAccess>0</voiceVlanAccess> <videoCapability>0</videoCapability> <autoSelectLineEnable>0</autoSelectLineEnable> <webAccess>1</webAccess> <daysDisplayNotActive>1,7</daysDisplayNotActive> <displayOnTime>08:00...

...;] virtio_check_driver_offered_feature+0x5/0x50 [ 75.114986] PGD 117b99067 PUD 114daa067 PMD 0 [ 75.114992] Oops: 0000 [#1] SMP [ 75.115006] Modules linked in: be2iscsi iscsi_boot_sysfs bnx2i fcoe libfcoe libfc cnic uio lockd cxgb4i cxgb4 scsi_transport_fc cxgb3i scsi_tgt libcxgbi cxgb3 8021q garp stp llc mdio ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm joydev snd_timer snd microcode soundcore pcspkr virtio_net virtio_balloon 9pnet_virtio 9pnet snd_page_alloc...

...;] virtio_check_driver_offered_feature+0x5/0x50 [ 75.114986] PGD 117b99067 PUD 114daa067 PMD 0 [ 75.114992] Oops: 0000 [#1] SMP [ 75.115006] Modules linked in: be2iscsi iscsi_boot_sysfs bnx2i fcoe libfcoe libfc cnic uio lockd cxgb4i cxgb4 scsi_transport_fc cxgb3i scsi_tgt libcxgbi cxgb3 8021q garp stp llc mdio ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm joydev snd_timer snd microcode soundcore pcspkr virtio_net virtio_balloon 9pnet_virtio 9pnet snd_page_alloc...

Hi. Is anyone using conntrack-tools to implement gateway failover on a network with windows clients? I set it up with ucarp and keepalived, and found that gratuitous ARP doesn''t always seem to update the cache on Windows machines. It works the first time, but if a second failover happens, the client continues to send stuff to the wrong MAC address. Linux machines work fine.