RFC523 - SURVEY is in operation again

Network Working Group Abhay K. Bhushan

RFC# 523 MIT-DMCG

NIC # 17048 June 5, 1973

SURVEY is in Operation Again

The purpose of this message is to inform the network community that the

survey program at MIT-DMCG computer system is in operation now. We are

surveying hosts every 20 minutes instead of the earlier 15 minutes. It

appears that some sites had problems with incomplete ICP's when survey

first came up. The problem has definitely been fixed now. Please let

me know (tel 617-253-1428 or 253-1449) if any site is being

inconvenienced by the survey program. Upon written request I will be

willing to not survey a particular server site. Upon oral or written

request, I will add sites who wish to be surveyed but are not surveyed.

The sites currently being surveyed are (host number in decimal):

1,2,3,4,6,7,8,9,10,11,13,14,15,16,23,31,32,35,65,66,69,70,74,78,86,133,

134,138,198. We issue an RFCto socket1 and now go though the complete

ICP, ie establish telnet connections and then close them. The time for

response is now the time to establish the telnet connections, so if your

response time shows a larger number don't be alarmed (I think the new

numbers are more meaningful and reflect the situation more accurately.)

We are also providing a NETSTATUS service on socket 15. (decimal). So

if you ICP to host 70 socket 15., you will get the following output:

mm,dd.yyyy,hh,mm

nnn,c,ttt

nnn,c,ttt

.......

-1

Where first item is month, day, year, hour, minute and then is a list of

host numbers, code, response time in tenths of second. The list ends

with a minus 1, and we close the connections right after sending data

(The service is designed so that both human users and programs can use

the data ). You can of course log into dmcg and use our NETWRK

subsystem which has commands for displaying the survey data in many

formats (Ref. RFC308, NIC 9259). We are also recording this data on

the DATACOMPUTER (CCA). Your comments and suggestions will be

appreciated.

Thank You

Abhay Bhushan

AKB@DMCG (NIC ident AKB)

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