nanog mailing list archives
Re: IP over SONET considered harmful?
From: "Sean M. Doran" <smd () clock org>
Date: Sun, 22 Mar 1998 10:31:04 -0800
Scott Brim wrote: | For example, in order for TTL to be effective, not every node needs to | decrement it -- we just need to be sure that no loops can form where it | doesn't get decremented. Yes, but you also want to make sure that the price-per-packet is really really really close to zero in the "gap" between ttl decrementing routers, otherwise, even though a loop may never form in the non-ttl-decrementing fabric, it may form across it, for example, between the two routers on either side of the gap, or through the two routers on either side of the gap. If the "gap" is a sub-IP fabric a continent and an ocean wide, such a loop tends to be somewhat expensive. TTL decrementing as a loop mitigation feature ought to be fairly popular in such circumstances. Sean.
Current thread:
- Re: IP over SONET considered harmful?, (continued)
- Re: IP over SONET considered harmful? avg (Mar 20)
- Re: IP over SONET considered harmful? Martin Hannigan (Mar 20)
- Re: IP over SONET considered harmful? Paul Ferguson (Mar 20)
- Re: IP over SONET considered harmful? Vadim Antonov (Mar 20)
- Re: IP over SONET considered harmful? Stan Hanks (Mar 21)
- Re: IP over SONET considered harmful? Martin Hannigan (Mar 20)
- Re: IP over SONET considered harmful? avg (Mar 20)
- Re: IP over SONET considered harmful? Vadim Antonov (Mar 21)
- Re: IP over SONET considered harmful? Sean M. Doran (Mar 21)
- Re: IP over SONET considered harmful? Paul Ferguson (Mar 21)
- Re: IP over SONET considered harmful? Sean M. Doran (Mar 21)
- Re: IP over SONET considered harmful? Sean M. Doran (Mar 21)
- Re: IP over SONET considered harmful? Sean M. Doran (Mar 22)
- Re: IP over SONET considered harmful? Sean M. Doran (Mar 22)
- Re: IP over SONET considered harmful? Vadim Antonov (Mar 22)
- Re: IP over SONET considered harmful? Sean M. Doran (Mar 22)
- Re: IP over SONET considered harmful? Mike Trest (In Japan) (Mar 22)
- Re: IP over SONET considered harmful? Peter E. Giza (Mar 23)
- Re: IP over SONET considered harmful? Sean M. Doran (Mar 24)
- Re: IP over SONET considered harmful? Peter Lothberg (Mar 27)