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From: mead@TUT.CC.ROCHESTER.EDU.UUCP
Newsgroups: comp.sys.proteon
Subject: Ethernet Maintenance Packet
Message-ID: <8710282102.22639@tut.cc.rochester.edu>
Date: Wed, 28-Oct-87 16:27:11 EST
Article-I.D.: tut.8710282102.22639
Posted: Wed Oct 28 16:27:11 1987
Date-Received: Sat, 31-Oct-87 09:57:37 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 17


The interfaces in the p4200 send out a maintenance packet with an Ethernet
address of 02-07-01-00-00-00. This packet is sent with a CRC error and is
apparently used to verify operation of the interface. 

These packets cause the "Bad Frame" counter on RBMS to increase steadily 
(about once or twice every four seconds). We are also experiencing some
problems with a host trying to establish a DECNET connection, that is on
the same side of the LAN Bridge as the p4200.                

Does anyone know whether the RBMS "Bad Frame" counter is a "dummy" counter
[its value has no effect on the protocol]? If the counter really does have
some implication on a higher level protocol, what might that be?

Thanks,
Ted (mead@tut.cc.rochester.edu)