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- NET-5.TXT
- TYPES OF DYNAMIC NODES
- ----------------------
-
- Since many networks aren't designed to handle heavy traffic loading, then it
- is worthwhile to pay close attention to the type and configuration of dynamic
- routing nodeware placed on the system. In addition to TheNet, most commonly
- seen are G8BPQ and MSYS. Variations on KA9Q's "NET" type TCP/IP nodes will
- be seen in some areas. G8BPQ, MSYS, and TCP/IP nodes are hardware supported,
- usually by IBM XT, or later, clones. As such, they are able to take advantage
- of higher memory capabilities in the PC based machines. These nodes still
- require an interface to a TNC.
-
- G8BPQ and MSYS make an ideal "packet switch" (gateway) for BBS SysOps since
- they usually have a computer operating on a 24 hour basis. By loading the
- appropriate software, a multi-ported node stack can be created. G8BPQ is quite
- versatile and will interface as a node "front end" to several popular BBS
- softwares, including CBBS, W0RLI and AA4RE. Excellent as it may be, MSYS
- is limited to just the MSYS BBS program. Another advantage of G8BPQ is the
- node format is similar that of the familiar TheNet. While interesting, MSYS's
- node format is quite verbose and can cause marginal, or heavily loaded circuits
- to break. An example:
-
- AX.25 user connections:
- User call Channel Port
- AX.25 node connections:
- Node Call Channel Port
- K8EIW-9 4 0
- Node cmd?
-
- This is the MSYS response to a USERS command. With exception of identifying
- the node a user came in from, it doesn't appear to convey useful information.
- It's not intuitive as to the meaning of the "AX.25" and "Channel" designations.
-
-
- 460406:WA8BXN-2} Routes:
- Port Neighbor Node Call Quality Dests Heard Digipeater(s)
- 1 CLE1:K8EIW-7 190 52 15:55
- 0 CLE220:K8EIW-9 225 47 15:40
- 2 WESTIP:KB8IPZ-4 190 2 15:18
- 0 SEUC:N8APU-7 190 6 15:02
- 1 CLERC:N8HSP-1 190 42 15:54
- 6 BXNND2:WA8BXN-10 255 5 15:10
- Node cmd?
-
- The MSYS ROUTES response does have meaning and is useful. However the addition
- of the header and the format of the "heard" as well as the "Node cmd?" prompt
- are not necessary and does add to system QRM. Unfortunately it appears the
- NodeOp is unable to "prune" these from the response. Quite often the extra
- baggage in the USERS and ROUTES response will not only cause a VHF network DXer
- to lose the circuit, but will disconnect others as well. On congested HF 300
- baud, networking to MSYS nodes can cause real problems!
-
-
- 460406:WA8BXN-2} MSYS Node in Kirtland, OH 44026 [BBS call is WA8BXN]]
- Node cmd?
-
- On the other side of the coin, the MSYS INFO response is an excellent example
- of conveying the necessary information without beating the circuit to death.
- All too often however, the G8BPQ INFO section offers redundant and unnecessary
- information. A typical finding:
-
- DALE1:K4NGC-1} K4NGC Network Switch (DALE1), Woodbridge, Virginia 22193
- Commands are basically the same as NET/ROM, but to connect to another
- normal station (not another node), you must specify a port number before
- the callsign. Use PORTS command to list available ports. The BBS command
- connects you to the associated Mailbox.
-
- In the first line both callsign and alias are repeated and hence, unnecessary.
- The following four lines were those the software author included in his first
- (and subsequent) releases to announce the similarities and differences in the
- command structure. For the most part, this extra baggage serves no useful
- purpose. The added network loading could cause DX users to become disconnected
- or to disconnect other users along the link. The reason the command statement
- here isn't useful is because if the user makes a command error, the node
- responds with the correct command listing. A "better" G8BPQ INFO format might
- be:
-
- DALE1:K4NGC-1} BPQ multi-port switch/AA4RE BBS in Woodbridge, VA 22193
-
- This INFO line instantly conveys the necessary data of interest to the seasoned
- user. The identification that it is a BPQ node will tip him off to the command
- requirements. Listing the BBS software in the INFO section is useful as it
- alerts potential users to the BBS commands that will be required. Stating it
- is a multi-port, as opposed to a single-ended switch, tells the user to give a
- (P)orts command to see what ports and frequencies are listed.
-
- We wonder how life would be if the following existed on every block:
-
-
- ILNAP:K9VXW-1} k9vxw-1.ampr.org NOS302 Rel 2.2 Beta 2 September 1991
- IP Addr: 44.72.41.66
-
-
- QTH: Lattitude:41,48,31 N Longitude:88,9,9 W - Naperville, IL - 60540 - EN51
-
- Ports:
- 145.01 - 2 meter, 1200 baud transport link for traffic south out of
- the Chicago area. 50 watts, 900 feet AMSL, omni
- 220_9.6 - 221 Mhz, 9600 baud link to downtown Chicago, Far North
- and NW Suburbs. 10 watts, 875 feet AMSL, cardiod east.
- 1.2G-4.8 - 1270 Mhz, 4800 baud link to Simi Valley, CA wormhole
- head end, and Western Suburbs LAN. 3 watts, 860 amsl, omni
- 425_56 - 430 Mhz Full Duplex, 56 KBaud Experimental CELLNET hard-
- ware link. Operational usage to the TCP/IP 1200 Baud LAN.
- Transmitter of K9VXW-1 is in the 425 MHz, MHz. 10 watts,
- 860 amsl, 4 element beam west.
- Commands:
- (C)onnect - Connect to other station. If station specified is a
- known node, routing is automatic. If station specified
- is not a known NETROM node, connect is via AX.25 on the
- 145.01 port. Other ports may be speficied for connects
- to non-node stations. Syntax:
- C <callsign>
- C <portname> <callsign>
- Example: C 145.01 W9YH
- <CR> to continue...
-
- (X)connect - Same as (C)onnect, but after disconnect from distant
- station, K9VXW-1 will report "Disconnected from Peer"
- and return to K9VXW-1 rather than disconnecting.
-
- (U)sers - List other users of K9VXW-1
- (N)odes - List other Net/Rom nodes known to the K9VXW-1 node.
- (J)heard - List stations heard by K9VXW-1. Syntax: J <portname>
- (T)elnet - Connect, with TCP/IP to TCP/IP station. Routing to
- Chicago TCP/IP lan, only, supported at this time.
- Syntax: T <TCP/IP Address, or station hostname>
- Example: T <n4pcr.ampr.org>
- (F)inger - Query remote TCP/IP station for his brag tape.
- Syntax:
- F <Ham's name or call>@<IP Address or Hostname>
- Ex: F Ken@wa9aek
- (CA)llbook - Query N4PCR's remote callbook server for address of
- a ham. Syntax: CA <callsign>
- (E)scape - Change ESCAPE command character. Don't worry about
- this unless you are linking to another NOS node, and
- want break the link to it independently of the link
- to K9VXW-1. Be sure to use a non-text character. De-
- fault is Control-X.
- <CR> to continue...
-
- (CH)at - Chat with Local node op, if on-duty.
- System Operators:
- K9VXW - (708)420-2409
- WB9MJN - (708)357-0083
- Final Notes:
- This system is undergoing active development. Expect software
- upgrades, with consequent momentary outages weekly. ILNAP uses
- the latest in state-of-the-art Packet Radio Controllers, the
- Gracilis PackeTen, 5 port stand-alone version. The single
- PackeTen controller handles all the ports listed above, including
- the 56 KB port, and a 9600 baud local console. Information about
- the PackeTen may be obtained by contacting N4PCR @ W9IUP.IL.USA.NA .
- The 56 KB Full Duplex link uses the prototype CELLNET radios de-
- veloped by WB9MJN. For more information on the CELLNET concept,
- see the 8th ARRL Computer Networking Conference Notes, and WB9MJN's
- article.
-
- --- END OF FILE ---
-
- Perhaps someday network development will improve to the point where dumping
- several Kbytes of INFO won't adversely impact other users. A redeeming factor
- with this example is it periodically halts while awaiting a user prompt to
- continue.
-