Re: MTU of the Internet?

[Tony Li <tli () juniper net>]

jra () scfn thpl lib fl us (Jay R. Ashworth) writes:

> > Unless your ISP uses BBN Butterflies and C30 IMPs in its backbone, I
> > would discount the odds of running into a link with an MTU of 576.
>
> How do I program my router to emulate one of those?

You don't need to.  It's already there.  You just need to configure it:

        conf term
          int serial 0
          ip mtu 576
          no ip route-cache
          <repeat for all interfaces>
        no router bgp 109
        router egp 109
          ...
        ^Z

To simulate an IMP, you need to configure X.25 DCE interfaces.  This is too
gross to discuss on a family mailing list.

;-)

Tony