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893-741-B
A4-23
The Port Server and Rotaries
rlogin, and TSTTY connections from the Model 5390 server to a host system into a single IP network
packet. Since the system load is determined per packet, not per byte, multiplexing this single packet
from one system to another significantly reduces the host overhead (see Figure A4-2).
For instructions about installing the TMux software, refer to Installation Notes for Annex 10.1 UNIX.
Figure A4-2. How TMux Works
Each TMux packet is sent as a single IP datagram containing multiple transport segments, each
preceded by a short TMux mini-header (see Figure A4-3). Each of these mini-headers contains all
the information required to recreate the transport segment when received by the remote end.
Figure A4-3. TMux Packet Header
The TMux software suite consists of two independent software modules. One module runs on the
Model 5390 server and one module runs on the host. A protocol links the two modules together (see
Figure A4-4).
TCP
TMux
IP
Device driver
(One interrupt per packet)
Network
6584
IP hdr
TMux hdr
Tport seg
Tport seg
. . .
TMux hdr
6585
Содержание 5390
Страница 28: ...893 741 B Figures xxviii ...
Страница 44: ...893 741 B Preface xliv ...
Страница 45: ......
Страница 48: ......
Страница 60: ...A1 12 893 741 B Introduction to the Model 5390 Server ...
Страница 106: ...A3 18 893 741 B Configuring Ports ...
Страница 142: ...A5 12 893 741 B Printers ...
Страница 152: ...A6 10 893 741 B Modems ...
Страница 168: ...A7 16 893 741 B Serial Line Internet Protocol SLIP ...
Страница 224: ...A9 38 893 741 B Internetwork Packet Exchange IPX Protocol ...
Страница 258: ...A11 12 893 741 B Dial up Networking ...
Страница 289: ...893 741 B A12 31 Internet Protocol IP Routing that are possible ...
Страница 506: ...A15 86 893 741 B Using Model 5390 Security ...
Страница 507: ......
Страница 508: ... Chapter B1 Network Administration Chapter B2 Simple Network Management Protocol SNMP Part B Network Administration ...
Страница 544: ...B1 36 893 741 B Network Administration ...
Страница 574: ...B2 30 893 741 B Simple Network Management Protocol SNMP ...
Страница 575: ......
Страница 606: ...C1 30 893 741 B na Commands ...
Страница 676: ...C2 70 893 741 B Configuration Parameters ...
Страница 772: ...C3 96 893 741 B Using the CLI Commands ...
Страница 794: ...C5 12 893 741 B Network Protocols ...
Страница 795: ......
Страница 796: ... Appendix D1 Software Reference Part D Appendixes ...