Re: [PATCH net] bridge: Add port flap detection

2014-05-05 Thread Sergei Shtylyov
Hello. On 05/05/2014 01:29 AM, Jon Maxwell wrote: There has been a number incidents recently where customers running KVM have reported that VM hosts on different Hypervisors are unreachable. Based on pcap traces we found that the bridge was broadcasting the ARP request out onto the network.

Re: [PATCH net] bridge: Add port flap detection

2014-05-04 Thread Jon Maxwell
; , vyase...@redhat.com, bri...@lists.linux-foundation.org, linux-kernel@vger.kernel.org, pi...@redhat.com, jmaxw...@redhat.com Sent: Monday, May 5, 2014 2:06:37 PM Subject: Re: [PATCH net] bridge: Add port flap detection On Sun, May 4, 2014 at 3:53 PM, Stephen Hemminger wrote: > On Mon, 5 Ma

Re: [PATCH net] bridge: Add port flap detection

2014-05-04 Thread Alexei Starovoitov
On Sun, May 4, 2014 at 3:53 PM, Stephen Hemminger wrote: > On Mon, 5 May 2014 07:29:34 +1000 > Jon Maxwell wrote: > >> There has been a number incidents recently where customers running KVM have >> reported that VM hosts on different Hypervisors are unreachable. Based on >> pcap traces we foun

Re: [PATCH net] bridge: Add port flap detection

2014-05-04 Thread Stephen Hemminger
On Mon, 5 May 2014 07:29:34 +1000 Jon Maxwell wrote: > There has been a number incidents recently where customers running KVM have > reported that VM hosts on different Hypervisors are unreachable. Based on > pcap traces we found that the bridge was broadcasting the ARP request out > onto the

[PATCH net] bridge: Add port flap detection

2014-05-04 Thread Jon Maxwell
There has been a number incidents recently where customers running KVM have reported that VM hosts on different Hypervisors are unreachable. Based on pcap traces we found that the bridge was broadcasting the ARP request out onto the network. However some NICs have an inbuilt switch which on occa