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Introduction
To configure CHARON-VAX networking, follow these 3 steps:
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:divload packet_port/chnetwrk NDIS interface = "eth0"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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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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| Type | Text String | |||
| 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 which will run DECnet or when the migrated software uses the permanent address on the network adapter. Format:
or
Example:
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rx_fifo_size
| Parameter | rx_fifo_size |
|---|---|
| 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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| 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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station_address
| Parameter | station_address | |||
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| Type | Text String | |||
| 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 which will run DECnet or when the migrated software uses the permanent address on the network adapter. Format:
or
Example:
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PMAD-AA TurboChannel Ethernet Adapter
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| Parameter | station_address | |||
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| Type | Text String | |||
| 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 which will run DECnet or when the migrated software uses the permanent address on the network adapter. Format:
or
Example:
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rx_fifo_size
| Parameter | rx_fifo_size |
|---|---|
| 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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| Parameter | interface | ||
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| Type | Text string | ||
| Value | This parameter Identifies an Ethernet adapter of the host system dedicated to CHARON-VAX. Syntax:
Example:
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port_enable_mac_addr_change
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| Parameter | port_pending_rx_number | |
|---|---|---|
| Type | Numeric | |
| Value | "port_pending_rx_number" parameter sets the number of pending receive buffers. The default value is 63. The maximum value allowed is 195. You may want to increase the "port_pending_rx_number" when you have very busy networking and experience problems like losing connections not related to the carrier loss. Typically, you do not need to change this parameter. Example:
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port_pending_tx_number
| Parameter | port_pending_tx_number | |
|---|---|---|
| Type | Numeric | |
| 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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| Parameter | log | ||||
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| Type | Text string | ||||
| 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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log_flush_period
| Parameter | log_flush_period | |
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| Type | Numeric | |
| Value |
Defines a period of flushing log to disk. Default period is 60 seconds (it means that every minute log file is flushed to disk) Examples:
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| Info |
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"tap_port" parameters are the same as "packet_port" ones |
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