223 lines
7.0 KiB
Plaintext
223 lines
7.0 KiB
Plaintext
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Network Working Group Peggy Karp
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Request for Comments: #247 MITRE
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NIC 7688 12 October 1971
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Categories: Policy, Telnet
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Related: #226, 236, 239, 233, 237
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Obsoletes: #226
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Proferred Set of Standard Host Names
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In RFC #226, BBN's TENEX list of Host names was set up as a strawman
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set of standard Host names. Comments received since then (an RFC
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actually generated comments!!!) have influenced me to propose the
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following general rules for forming Host names.
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The Host names will be 8 characters in length. The general form is
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<site> '-' <machine>
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<site> will be at most 4 characters, formed as follows:
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(a) Use the keyword in the site name, if not more than
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four characters, e.g., NASA Ames, Case Western
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Reserve. ---- ----
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(b) Use the standard acronym, if not more than four
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characters, e.g., UCLA, RADC, NBS.
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(c) If a standard abbreviation exists, use it, e.g., Ill.
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(d) If none of the above apply, use the first four letters
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in the site name, e.g., Burr, Mitr, Harv.
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(e) If none of the above is acceptable to the site, the
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technical liaison should select the site mnemonic.
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<machine> will be at most 4 characters of the form <mfg. #>
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<designator>.
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Examples of mfg. # are:
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IBM 360 2 digit model number
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IBM 370 3 digit model number
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PDP 1 - 2 digit model number
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Burroughs 4 digits
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CDC 4 digits
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etc.
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[Page 1]
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RFC #247
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<designator> will be used when more than one machine of the same
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type is located at a site (e.g., 2 PDP-10s at MIT, at SRI, and
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at BBN).
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Limiting <machine> to 4 characters does not permit distinctions
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to be made between machines with 4 digit mfg. #s. I expect
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the situation will be handled in an ad hoc manner by the NIC if
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it arises.
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TIPs are identified as 'TIP' rather than by '316'. If a Host
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is not to be permanently addressable, the machine is identified
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as 'TEST'.
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A list of Host names, formed according to these rules, is
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attached. Alternate Host names should be provided, as
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suggested by Jon Postel (RFC #236). RFC's 206, 233, and
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236 present lists with 4-character alternate names. The
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Technical Liaison should select the alternate name for his
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site and communicate the selection to the NIC.
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The preceding rules and the attached list of Host names are
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subject to the approval of the NWG. Hereafter, the list will
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be generated and maintained by the NIC in cooperation with
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the Technical Liaison at each site, as suggested in RFC #237.
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Comments should be addressed to Dick Watson.
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[ This RFC was put into machine readable form for entry ]
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[ into the online RFC archives by BBN Corp. under the ]
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[ direction of Alex McKenzie. 12/96 ]
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[Page 2]
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RFC #247
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Attachment 1
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NETWORK ADDRESS STANDARD NAME
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--------------- -------------
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1 UCLA-7
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65 UCLA-91
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2 SRI-10NI
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66 SRI-10AI
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3 UCSB-75
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4 UTAH-10
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5 BBN-516
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69 BBN-10A
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133 BBN-10B
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6 MIT-645
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70 MIT-10DM
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134 MIT-10AI
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7 RAND-65
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71 RAND-10
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8 SDC-75
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9 HARV-10
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73 HARV-1
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137 HARV-11
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10 LL-67
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74 LL-TX2
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138 LL-TSP
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11 SAIL-10
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12 ILL-11
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76 ILL-6500
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13 CASE-10
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14 CMU-10
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15 BURR-6500
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79 BURR-TEST
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16 AMES-67
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144 AMES-TIP
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145 MITR-TIP
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18 RADC-645
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146 RADC-TIP
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19 NBS-11
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147 NBS-TIP
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148 ETAC-TIP
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21 TINK-418
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22 MCCL-418
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23 USC-44
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151 USC-TIP
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152 GWC-TIP
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25 NCAR-7600
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153 NCAR-TIP
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158 BBNX-TEST
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[Page 3]
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RFC #247
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Attachment 2
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An Implementation Scheme
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If the standard Host names are formed according to the proposed
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rules, the following implementation scheme, suggested by Steve
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Crocker, can be used.
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Map <site> into an 8-bit number, S and
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map <machine> into an 8-bit number, M,
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where
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S + M = Network Address.
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S and M can be selected such that specification of <site>
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alone could cause a default to the "primary" Host at
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the site. Note that this scheme depends on a unique
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<site> designator for each IMP.
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Some examples:
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If the "primary" Host at UCLA is the 91, let
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UCLA -> S = X'41'
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7 -> M = X'40'
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91 -> M = X'00'
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then for
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UCLA-7, S + M = X'01' = 1 base 10
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UCLA-91,S + M = X'41' = 65 base 10
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and
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UCLA alone = X'41' = 65 base 10
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If the primary Host at BBN is TENEX System A, let
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BBN -> S = X'45'
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516 -> M = X'40'
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10A -> M = X'00'
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10B -> M = X'C0'
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then for
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BBN-516, S + M = X'05' = 5 base 10
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BBN-10A, S + M = X'45' = 69 base 10
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BBN-10B, S + M = X'85' = 133 base 10
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and
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BBN alone = X'45' = 69 base 10
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The primary Host for each IMP would be designated by the
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site and such information disseminated by the NIC.
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[Page 4]
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