[2740] in North American Network Operators' Group
Re: Inter-exchange media types
daemon@ATHENA.MIT.EDU (Peter Lothberg)
Tue Apr 30 14:02:50 1996
Date: Tue, 30 Apr 96 19:46:20 MET DST
From: Peter Lothberg <roll@stupi.se>
To: ipasha@sprintlink.net
Cc: Hank Nussbacher <hank@ibm.net.il>, nanog@merit.edu
In-Reply-To: Your message of Tue, 30 Apr 1996 12:09:26 -0400 (EDT)
> Dtatacom tests were performed in the 10/100 setup. Obviously
> the Fast ethernet switches had an advantage over the FDDI
> switches since Fast ethernet and conventional ethernet work
> with the same frame types. FDDI switches on the other hand
> has to convert ethernet frames to FDDI frames and vice versa.
> Todays NAPs in most cases are not 10/100 set up. It is more like
> DS3/100/100 setup where routers are feeding traffic into the Gigaswitch
> using FDDI and since HSSI and FDDI is using same MTU size, no
> fragmentation is involved.
Both 10 and 100 ethernet use 1500 byte mtu.
And remember that the characteristics of a loaded exchange is very
diffrent between ethernet and token-ring.
---Peter
