dummynet: bandwidth is limited to 2 Gbit/s ?

[Eugene Grosbein]

On 25.09.2019 20:53, Andrey V. Elsukov wrote:

> On 25.09.2019 16:51, Eugene Grosbein wrote:
>>> Will this break upgrades with freebsd-update? On a major upgrade,
>>> it will first install the new kernel and require a reboot before
>>> you run freebsd-update again to install the rest.
>>
>> So it will run without dummynet pipes (traffic shaping) configured
>> meantime. Is it big deal?
> 
> Note, that if you have ipfw rule with pipe, that does not exist, all
> matched traffic will be dropped. :-)

Nice catch. Maybe we should introduce new sysctl kern.features.dummynet64 knob for new kernels only
but teach /sbin/ipfw for all supported branches to check it. So /sbin/ipfw would refuse to process
any dummynet-related rules if knob is present and the binary has no 64-bit dummynet support.