rfc1347.ps

RFC 的详细文档！

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(Overview of TUBA) h
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90.8 0 32 (Updated Internet hosts talk to old Internet hosts using the current Internet suite unchanged. Up\255) W
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126.7 0 32 (dated Internet hosts talk to other updated Internet hosts using \(TCP or UDP over\) CLNP. This) W
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0.2 0 32 (implies that updated Internet hosts must be able to send either old\255style packets \(using IP\), or new) W
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(style packet \(using CLNP\). Which to send is determined via the normal name\255to\255address lookup.) h
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111.8 0 32 (Thus, suppose that host N1 wants to communicate with host H1. In this case, N1 asks its local) W
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140.1 0 32 (DNS server for the address associated with H1. In this case, since H1 is a older \(not\255updated\)) W
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133.6 0 32 (host, the address available for H1 is an IP address, and thus the DNS response returned to N1) W
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64.9 0 32 (specifies an IP address. This allows N1 to know that it needs to send a normal old\255style Internet) W
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(suite packet \(encapsulated in IP\) to H1.) h
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139.7 0 32 (Suppose that host N1 wants to communicate with host N2. In this case, again N1 contacts the) W
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2.2 0 32 (DNS server. If the routers in the domain have not been updated \(to forward CLNP\), or if the DNS) W
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45.6 0 32 (resource record for N2 has not been updated, then the DNS server will respond with a normal IP) W
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/Times-Roman-ISOLatin1 F 1000 o f
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/Times-Bold-ISOLatin1 F 1000 o f
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(2) h

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/Times-Roman-ISOLatin1 F 1400 o f
(Internet) h

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25678 -3592 L
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(Regionals) h

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/Times-Roman-ISOLatin1 F 1000 o f
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/Helvetica-ISOLatin1 $
/Helvetica & P
/Helvetica-ISOLatin1 F 1200 o f
(RFC 1347) h
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(TUBA: A Proposal for Addressing and Routing            ) h
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(June 1992) h
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/Times-Roman-ISOLatin1 $
/Times-Roman & P
/Times-Roman-ISOLatin1 F 1200 o f
66.9 0 32 (address, and the communication between N1 and N2 will use IP \(updated hosts in environments) W
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138.5 0 32 (where the local routers do not handle CLNP are discussed in section 6.3\). However, assuming) W
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137.9 0 32 (that the routers in the domain have been updated \(to forward CLNP\), that the DNS server has) W
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25.1 0 32 (been updated \(to be able to return NSAP addresses\), and that the appropriate resource records for) W
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47.1 0 32 (NSAP addresses have been configured into the DNS server, then the DNS server will respond to) W
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11.2 0 32 (N1 with the NSAP address for N2, allowing N1 to know to use CLNP \(instead of IP\) for commu\255) W
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(nication with N2.) h
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33.8 0 32 (A new resource record type will be defined for NSAP addresses. New hosts ask for both the new) W
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74.1 0 32 (and old \(IP address\) resource records. Older DNS servers will not have the new resource record) W
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184.9 0 32 (type, and will therefore respond with only IP address information. Updated DNS servers will) W
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18.3 0 32 (have the new resource record information for the requested DNS name only if the associated host) W
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(has been updated \(otherwise the updated DNS server again will respond with an IP address\).) h
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62.3 0 32 (Hosts and/or applications which do not use DNS operate in a similar method. For example, sup\255) W
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2.6 0 32 (pose that local name to address records are maintained in host table entries on each local worksta\255) W
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77.3 0 32 (tion. When a workstation is updated to be able to run Internet applications over CLNP, then the) W
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127.2 0 32 (host table on the host may also be updated to contain updated NSAP addresses for other hosts) W
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131.2 0 32 (which have also been updated. The associated entries for non\255updated hosts would continue to) W
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21.6 0 32 (contain IP addresses. Thus, again when an updated host wants to initiate communication with an\255) W
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73.3 0 32 (other host, it would look up the associated Internet address in the normal manner. If the address) W
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29.7 0 32 (returned is a normal 32\255bit IP address, then the host would initiate a request using an Internet ap\255) W
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131.8 0 32 (plication over TCP \(or UDP\) over IP \(as at present\). If the returned address is a longer NSAP) W
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95.8 0 32 (address, then the host would initiate a request using an Internet application over TCP \(or UDP\)) W
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(over CLNP.) h