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- Network Working Group V. Cerf
- Request for Comments: 968 MCI
- December 1985
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- 'Twas the Night Before Start-up'
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- STATUS OF THIS MEMO
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- This memo discusses problems that arise and debugging techniques used
- in bringing a new network into operation. Distribution of this memo
- is unlimited.
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- DISCUSSION
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- Twas the night before start-up and all through the net,
- not a packet was moving; no bit nor octet.
- The engineers rattled their cards in despair,
- hoping a bad chip would blow with a flare.
- The salesmen were nestled all snug in their beds,
- while visions of data nets danced in their heads.
- And I with my datascope tracings and dumps
- prepared for some pretty bad bruises and lumps.
- When out in the hall there arose such a clatter,
- I sprang from my desk to see what was the matter.
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- There stood at the threshold with PC in tow,
- An ARPANET hacker, all ready to go.
- I could see from the creases that covered his brow,
- he'd conquer the crisis confronting him now.
- More rapid than eagles, he checked each alarm
- and scrutinized each for its potential harm.
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- On LAPB, on OSI, X.25!
- TCP, SNA, V.35!
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- His eyes were afire with the strength of his gaze;
- no bug could hide long; not for hours or days.
- A wink of his eye and a twitch of his head,
- soon gave me to know I had little to dread.
- He spoke not a word, but went straight to his work,
- fixing a net that had gone plumb berserk;
- And laying a finger on one suspect line,
- he entered a patch and the net came up fine!
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- The packets flowed neatly and protocols matched;
- the hosts interfaced and shift-registers latched.
- He tested the system from Gateway to PAD;
- not one bit was dropped; no checksum was bad.
- At last he was finished and wearily sighed
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- Cerf [Page 1]
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- RFC 968 December 1985
- Twas the Night Before Start-up
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- and turned to explain why the system had died.
- I twisted my fingers and counted to ten;
- an off-by-one index had done it again...
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- Vint Cerf
- December 1985
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- Cerf [Page 2]
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