[Info-vax] Loosing all LAT connections on one machine in DECNet Network

[Michael Austin]

JCamCMKRNL wrote:
> Answers to many of the questions:
> ----------------------------
>> Or is the VAX connected via AUI to the DELNI and the decserver connected 
directly to the DELNI ?
> Yes. In the Data Center all 5 systems, VAX & PDPs plus one DECServer
> are all connected to one DELNI.
> 
>> what version of VMS do you have ?
> V5.5-2
> 
>> Another thing to try is, from VAX:  SET HOST/LAT <vax>  -or- SET HOST/LAT <pdp>
> Good idea, but outgoing LAT is currently disabled. I will enable it
> and try again, but that requires Change Configuration paperwork.
> 
>> MC LATCP SHOW SERVICES
> I will check this out if/when this problem occurs again.
> 
>> What kind of VAX are you running?
> Micro VAX 4000-400
> 
>> you mention plant, is this a Fuji site?
> No. We are a medical manufacturer.
> 
>> Is it possible to connect a DEMPR or DESPR to the DELNI and run thinwire between the VAX and the DELNI?
> We have no 10-Base2 equipment or media.
> 
>> Does LAT report errors?
> We have not experienced the problem since the last reboot, and the
> counters currently show no errors, but this was interesting from the
> MCR LATCP SHOW LINK/COUNT
> Transmit Errors -
>    Excessive Collisions:        No
>    Carrier Check Failure:       Yes
>    Short Circuit:               Yes
>    Open Circuit:                Yes
>    Frame Too Long:              Yes
>    Remote Failure To Defer:     No
>    Transmit Underrun:           Yes
>    Transmit Failure:            No
<snip>

appears that you may have a failing  DEQNA, or DELNI port - or a bad cable.

These should all report NO.

what does the current output of this show?
mc ncp show counter know circ