Re: Why packets (from my ISP to me) on the WAN VC side of my router are twice the size of packets on the Ethernet (and a corresponding twice as many bytes)

[rhkramer@gmail.com]

I noticed today that those statistics pages do tell me the size of the MTUs

On the:       MTU is: 
WAN VC        1540
Ethernet      1500

So, the numbers are a little different, but still relate the same way Dan 
mentioned, that is, the WAN VC MTU is larger than the Ethernet MTU.  (So this 
doesn't add anything to the discussion except to make one point more 
accurate.)


On Tuesday, February 07, 2017 05:27:18 AM Dan Purgert wrote:
> > So, I guess the possibility that this suggests to me seems
> > backwards--that is, the opposite of what I am seeing.  I mean, if
> > somewhere a 1500 byte packet has to be packed into a 1452 byte packet,
> > I suppose something might double the size of the 1452 byte packet and
> > just waste the leftover bytes in the two packets (i.e., 1452 * 2 -1500
> > = 1404), but the packets are coming in on the WAN side presumably at
> > 1452 bytes and I would think they would fit fine in the 1500 byte
> > packet on the LAN side.
> > 
> > (And I'm oversimplifying or misleading a little, because I'm not
> > seeing twice as many packets but instead packets that are twice as big
> > (on the WAN side).)