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TL;DR How to set 'speed' and 'duplex' of virtual network devices?


Hi @ all,

I just found out that `ethtool tun0` per default will print that the
device speed of an virtual (tunnel) device is 10Mb/s, and that ethtool
can only change settings of "pysical" links, just like `mii-tool` can do.

So my questions are:
* Is the transmission rate /limited/ by this value? (Cause it seams so...)
* Is there any way it can be set?

In my case I have two (OpenVPN) tunnel devices (udp), which are bonded
together with 'bonding round robin mode' (mode 0).
tun0 and tun1 have 10Mb/s speed and bond0 has 20Mb/s and that are the
actual transmission rates I can get, when transferring data.

But I'm connected via a Gigabit-Switch on an 100Mb/s uplink (also the
bonding gateway is connected with 100Mb/s), so I want to use the full
uplink speed. If I am connected directly to the uplink router (with my
computer) I get ~ 10MB/s, so everything seams fine.

Is there any way to change that 10Mb/s tunnel device behavior?

Thanks for advice and references,
Bernd

- -- 
Bernd Naumann <[email protected]>

PGP:   0xA150A04F via pool.sks-keyservers.net
XMPP:  [email protected]
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