have you even looked at the set bandwidth of the tunnel?
The bandwidth of a virtual interface (VLAN/Tunnel) is for all intents and purposes irrelevant.
Although I have used tons of Cisco gear I am not using Cisco gear at the moment for these tunnels.
the MTU only needs to be raised if the bandwidth is high and so is the quality
This is not true and even if it were true I have no issue with bandwidth or quality
of the bandwidth on my end.
on my cisco router if I type "show interface tunnel0" then I see the Bandwidth thats set and the MTU also your argument of fragmentation is invalid as a lower MTU gives less fragmentation and is more useful at lower bandwidth
Yes there is a threshold where it should be smaller than the smallest MTU of the connections between my router and HE's router but it should also be higher than the default which is currently being used.
If I was on a modem or ISDN connection then I would agree but bandwidth is not an issue.
MTU= Maximum transmition unit= Max size for per packet in bytes= 1.5 kilobytes (or more accurately 1.46KB)
and although your wan interface may be able to do 1500 without fragmentation it may not be able to do a tunnel with 1500
I never said a tunnel with an MTU of 1500. I said 1480 or in the case of a PPPoE connection 1472.
since the tunnels have differing MTU's I would assume its automaticly set by the HE point based on what can work with minimal fragmentation
The tunnels with HE do not have differing MTU's at the moment.