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Load network adapter (if required)
If you are configuring a DEQNA, DESQA, DELQA, DEUNA, DELUA, DEMNA, DEBNI or PMADAA adapter, use the "load" command as shown below. CHARON-VAX 3100/96/98 and 4000/106/108 emulations automatically load SGEC (with the name "eza") and therefore no "load" command is required.
Example:load DELQA/DEQNA NICLoad "packet_port" or "tap_port"
Load "packet_port" or "tap_port" to connect the SGEC, DEQNA, DESQA, DELQA, DEUNA, DELUA, DEMNA, DEBNI or PMADAA adapter to the host hardware network card (or to a virtual network interface).
Example:load packet_port/chnetwrk NDIS interface = "eth0"Div class pagebreak Connect the loaded "packet_port" ("tap_port") to the loaded virtual network adapter
Connect the SGEC, DEQNA, DESQA, DELQA, DEUNA, DELUA, DEMNA, DEBNI or PMADAA adapter to the "packet_port" ("tap_port") by setting the interface name.
Example:set NIC interface = NDIS
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The interface name can be either " Examples:
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Network booting is supported with exception of VAX6xxx models.
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SGEC Ethernet Controller
The built-in SGEC controller emulator ("eza") has the following parameters that are specified with the "set" command:
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| Parameter | station_address | |||
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| Value | "station_address" provides the ability to configure the adapter’s permanent address. By default the adapter’s permanent address is read from the host system’s NIC. Set the "station_address" when you need to configure a satellite (remotely booted) system that will run DECnet or when the migrated software uses the permanent address on the network adapter. Format:
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Example:
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rx_fifo_size
| Parameter | rx_fifo_size |
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| Type | Numeric |
| Value | "rx_fifo_size" sets the receive FIFO size. The value is specified in Kb and by default is pre-calculated from the connected port’s size of receive queue. Typically, you do not need to change the "rx_fifo_size" parameter. It is available for extended tuning and bug hunting purposes. |
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DEQNA / DESQA / DELQA Ethernet Controller
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| Parameter | address | |
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| Value | Specifies the CSR address. The address must be a valid QBUS and UNIBUS address in I/O space. Initial value is 017774440 which is the factory setting for DEQNA, DESQA and DELQA Ethernet controllers. Use the address parameter if loading several instances of DEQNA, DESQA, DELQA, DEUNA and DELUA. "address" parameter value must be unique for every instance of DEQNA, DESQA, DELQA, DEUNA and DELUA. Example:
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interface
| Parameter | interface |
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| Type | Text String |
| Value | Name of corresponding instance of "packet_port" or "tap_port" component |
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DEMNA Ethernet Adapter
CHARON-VAX/66X0 systems provide support for the DEMNA Ethernet controller.
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DEBNI Ethernet Adapter
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DEBNI Ethernet Adapter
CHARON-VAX/63X0 systems provide support for the DEBNI Ethernet controller.
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PMAD-AA TurboChannel Ethernet Adapter
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Packet Port
The CHARON-specific "packet_port" interface establishes a connection between an Ethernet adapter in the Linux host system and a network adapter in the virtual VAX system.
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| Parameter | port_pending_tx_number | |
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| Value | "port_pending_tx_number" parameter sets the number of buffers the port uses to transmit. The default value is 62. You may want to increase the "port_pending_tx_number" value if the log file indicates dropped TX packets due to TX queue overflow. Typically, you do not need to change this parameter. Example:
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log
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log |
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| Value | If this parameter is set to some valid file name or a directory where the log files for each individual session will be stored CHARON logs Recv and Xmit packets at the emulated port layer. If an existing directory is specified, CHARON automatically enables creation of individual log files, one for each session using the same scheme as used for the generation of the rotating log files. If the "log" parameter is omitted, CHARON does not create log. In certain situations enabling this parameter may help to detect loss of packets. Example:
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"tap_port" parameters are the same as "packet_port" ones |
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Supported Ethernet Q-bus Adapters for DECnet OSI (DECnet Plus)
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The integrated SGEC Ethernet "EZA" on MicroVAX 3100 & VAX 4000-106/108 is supported by DECnet OSI. The integrated ESA (AMD Lance 7990) device is not currently implemented in Charon-VAX. |
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Ethernet Q-bus Adapter and Cluster configuration rules
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The default DEQNA device is not supported for SCS Cluster protocol and the emulated VAX will fail with a CLUEXIT Bugcheck.
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