Re: [Xen-devel] [PATCH] xen-netfront, xen-netback: Use correct minimum MTU values

2017-10-16 Thread David Miller
From: Boris Ostrovsky Date: Mon, 16 Oct 2017 16:19:07 -0400 > On 10/16/2017 11:05 AM, Wei Liu wrote: >> On Mon, Oct 16, 2017 at 03:20:32PM +0200, Mohammed Gamal wrote: >>> RFC791 specifies the minimum MTU to be 68, while xen-net{front|back} >>> drivers use a minimum

Re: [Xen-devel] [PATCH] xen-netfront, xen-netback: Use correct minimum MTU values

2017-10-16 Thread Boris Ostrovsky
On 10/16/2017 11:05 AM, Wei Liu wrote: > On Mon, Oct 16, 2017 at 03:20:32PM +0200, Mohammed Gamal wrote: >> RFC791 specifies the minimum MTU to be 68, while xen-net{front|back} >> drivers use a minimum value of 0. >> >> When set MTU to 0~67 with xen_net{front|back} driver, the network >> will

Re: [Xen-devel] [PATCH] xen-netfront, xen-netback: Use correct minimum MTU values

2017-10-16 Thread Wei Liu
On Mon, Oct 16, 2017 at 03:20:32PM +0200, Mohammed Gamal wrote: > RFC791 specifies the minimum MTU to be 68, while xen-net{front|back} > drivers use a minimum value of 0. > > When set MTU to 0~67 with xen_net{front|back} driver, the network > will become unreachable immediately, the guest can no

Re: [Xen-devel] [PATCH] xen-netfront, xen-netback: Use correct minimum MTU values

2017-10-16 Thread Eduardo Otubo
On Mon, Oct 16, 2017 at 03:20:32PM +0200, Mohammed Gamal wrote: > RFC791 specifies the minimum MTU to be 68, while xen-net{front|back} > drivers use a minimum value of 0. > > When set MTU to 0~67 with xen_net{front|back} driver, the network > will become unreachable immediately, the guest can no

[Xen-devel] [PATCH] xen-netfront, xen-netback: Use correct minimum MTU values

2017-10-16 Thread Mohammed Gamal
RFC791 specifies the minimum MTU to be 68, while xen-net{front|back} drivers use a minimum value of 0. When set MTU to 0~67 with xen_net{front|back} driver, the network will become unreachable immediately, the guest can no longer be pinged. xen_net{front|back} should not allow the user to set