Re: default ECN settings

Hi Macy and Don, I am Midori. Too late to catch up this topic but this topic is interesting to me. Linux separates inbound and outbound ecn operation while RFC 3168 says that making hosts fail during the negotiation without ecn configuration. I think FreeBSD is probably able to distinguish

Re: tap(4) and host-only networking between host and guest

On 04.11.2015 22:34, Victor Sudakov wrote: > tap(4) says that tapN is an exclusive-open device. And when I tried it > out, the second bhyve instances said "open of tap device /dev/tap0 failed", > which was kind of expected. Hmm, false memory... I have missed "exclusive" part.

Re: Timing issue with Dummynet on high kernel timer interrupt

On 11/05/15 00:44, Rasool Al-Saadi wrote: On Wednesday, 4 November 2015 12:34 AM, Hans Petter Selasky wrote: On 11/03/15 14:14, Rasool Al-Saadi wrote: Does anyone have thoughts on what we can test next to narrow down the root-cause of these unusual timing jumps? You might also want to test

Re: who uses this port?

On 05/11/2015 09:20, Ben Woods wrote: >> I'm more curious as to why sockstat gives you question marks instead of the >> > proper process details. Any ideas? This indicates a connection that is in the process of closing down but the system still hasn't cleared up all the connection state yet.

Re: netstat -B "Recv"

04.11.2015, 19:55, "el...@sentor.se" : > Hi! > > Question: > What do the Recv column in 'netstat -B' show? > > I thought it was tha amount of packets received, but appaently not so. > > I send 200 packets from a tcpreplay machine to a receiving machine. > I do it a few

Re: tap(4) and host-only networking between host and guest

On 11/5/15 10:31 AM, Victor Sudakov wrote: Neel Natu wrote: Julian Elischer wrote: I am experimenting with bhyve which uses tap(4) for network access. I don't want to bridge tap0 with any of the hosts's real NICs. How can I create a private network just between the host and the guest? you

Re: netstat -B "Recv"

Hi Christian. Sorry, I was in a bit of a hurry when I wrote the below. Here's more information: FreeBSD 10.1 amd64 (on both boxes). In rc.conf on the receiver I have: ifconfig_ix0="up -arp -lro" ifconfig_ix1="up -arp -lro" cloned_interfaces="bridge0" ifconfig_bridge0="up addm ix0 -discover

Re: tap(4) and host-only networking between host and guest

Julian Elischer wrote: [dd] > >>> For some reason, after a guest is shutdown or rebooted, the IP address > >>> on the host's tap0 interface is deleted. > >>> > >> Try using 'vmnet0' instead of 'tap0'. It will retain the IP address > >> even after a guest reboot/shutdown. > > Thanks, I see now

Re: tap(4) and host-only networking between host and guest

On 05.11.2015 01:45, Victor Sudakov wrote: > For some reason, after a guest is shutdown or rebooted, the IP address > on the host's tap0 interface is deleted. > > It's kind of inconvenient. Yes, it is. And there is a solution: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=165174

Re: who uses this port?

On 05.11.2015 14:20, Ben Woods wrote: > On Wednesday, 4 November 2015, Andriy Gapon wrote: > >> $ sockstat -l | fgrep 631 >> ?? ? ? tcp4 127.0.0.1:631 *:* >> >> $ nc -l 127.0.0.1 631 >> nc: Address already in use >> > > > I'm more curious as to

[Bug 203630] [Hyper-V] [nat] [tcp] 10.2 NAT bug in TCP stack or hyperv netsvc driver

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203630 --- Comment #16 from Eddy --- Hi and thank you for the patch. I just applied it on a clean 10.2 kernel and made the same tests as before. It seems to solve the issue! I wait for it to be officially included in the

Re: who uses this port?

On 05.11.2015 02:40, Andriy Gapon wrote: > $ sockstat -l | fgrep 631 > ?? ? ? tcp4 127.0.0.1:631 *:* > > $ nc -l 127.0.0.1 631 > nc: Address already in use That may be nlockmgr, as for my system: # sockstat -4lP tcp | fgrep \? ?? ?

Re: tap(4) and host-only networking between host and guest

Eugene Grosbein wrote on 11/05/2015 18:06: On 05.11.2015 01:45, Victor Sudakov wrote: For some reason, after a guest is shutdown or rebooted, the IP address on the host's tap0 interface is deleted. It's kind of inconvenient. Yes, it is. And there is a solution:

RE: Timing issue with Dummynet on high kernel timer interrupt

On Thursday, 5 November 2015 8:53 PM, Hans Petter Selasky wrote: > > On 11/05/15 00:44, Rasool Al-Saadi wrote: > > > > On Wednesday, 4 November 2015 12:34 AM, Hans Petter Selasky wrote: > >> On 11/03/15 14:14, Rasool Al-Saadi wrote: > >>> Does anyone have thoughts on what we can test next to

Re: default ECN settings

On 11/05/15 at 06:58P, Midori Kato wrote: > Hi Macy and Don, > > I am Midori. Too late to catch up this topic but this topic is interesting > to me. > Linux separates inbound and outbound ecn operation while RFC 3168 says that > making hosts fail during the negotiation without ecn configuration.

Re: tap(4) and host-only networking between host and guest

On Thu, Nov 5, 2015 at 4:36 PM, Miroslav Lachman <000.f...@quip.cz> wrote: > Eugene Grosbein wrote on 11/05/2015 18:06: > >> Yes, it is. And there is a solution: >> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=165174 >> > > I don't understand why such useful patches are left uncommited and

Re: strange nfs/rsync stalls

On Wed, 4 Nov 2015 14:43:54 +0100 Gerrit Kühn wrote about strange nfs/rsync stalls: > I have a couple of other machines that use the same server in the same > way, none of them ever showed this behaviour. Are there any > suggestions how to debug/fix this? Some more

Re: who uses this port?

On 05/11/2015 11:58, Matthew Seaman wrote: > On 05/11/2015 09:20, Ben Woods wrote: >>> I'm more curious as to why sockstat gives you question marks instead of the proper process details. Any ideas? > > This indicates a connection that is in the process of closing down but > the system still

Re: netstat -B "Recv"

On Thu, 5 Nov 2015, Alexander V. Chernikov wrote: 04.11.2015, 19:55, "el...@sentor.se" : Hi! Question: What do the Recv column in 'netstat -B' show? I thought it was tha amount of packets received, but appaently not so. I send 200 packets from a tcpreplay machine to a

Re: who uses this port?

On Thu, Nov 05, 2015 at 09:45:38AM +0200, Andriy Gapon wrote: > On 05/11/2015 09:20, Ben Woods wrote: > > On Wednesday, 4 November 2015, Andriy Gapon > > wrote: > > > > $ sockstat -l | fgrep 631 > > ?? ? ? tcp4

ngrep/ixgbe bpf bug

Hi all! Why don't ngrep work on ix interfaces? It shows nice values if I sniff on other interfaces, e.g. igb0 and bridge0: # ngrep -d igb0 "q" ip I see some matching packets. Everything looks good. # netstat -B Pid Netif Flags Recv Drop Match Sblen Hblen Command 1800