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Network Adapter Type
The adapter type determines what the device name will be in OpenVMS.
Adapter Type
OpenVMS
Example
Device name in OpenVMS
DEGXA Gigabit Ethernet adapter
EW..
EWA0
BCM5703
DE600 Ethernet adapter
EI..
EIB0
i82558
DE500 Ethernet adapter
EW..
EWC0
DE500
DE450 Ethernet adapter
EW..
EWA0
DE450
DE435 Ethernet adapter
EW..
EWD0
DE435
EI1000 Ethernet adapter
EI..
EIA0
i8254x
DE435/DE450 Ethernet adapter
EW..
EWA0
TULIP
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Network Adapter Description
The network adapter EWA0 is a DE500 (On OpenVMS: DE500).
There are twos type of DE500 network adapters:
1.
The DE500 supports one network connection.
2.
A special DE500, the DE504, supports four network connections.
The DE504 network adapter is only supported when using OpenVMS or Tru64.
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Network Adapter Speed
In OpenVMS the network adapter EWA0 is configured to use 100 mbps as network speed.
This is probably
not
the current network speed for EWA0.
A physical DE500 is limited to 10 or 100 mbps.
This hardware limit does
not
exist when using virtual network adapters.
When using a virtual Alpha server, the network speed is determined by the SRM variable ewa0_mode.
The SRM environment variable ewa0_mode can have the following values:
Value
Result
Can be changed in OpenVMS
twisted-pair
10 Mb half
Yes
fullduplex
10 Mb full
Yes
fast
100 Mb half
Yes
fastfd
100 Mb full
Yes
auto-negotiate
10, 100, 1000 Mb half/full
Yes
host
determined by host
no
Network Settings
TCPIP settings
No active TCPIP process found.
DECnet Settings
DECnet is not started
Network Interfaces
Number of network interfaces: 1
Network Interface:
EWA0
Adapter Type:
DE500
Detail DE500
Adapter description:
DE500-BA (Fast Ethernet)
More Info
MAC Address (default):
C2-C9-4D-0B-E3-35
MAC Address (current):
C2-C9-4D-0B-E3-35
Medium:
Ethernet
Line media:
TwistedPair
Line speed (mbps):
100
Speed Info
Full duplex enable:
Yes
Full duplex operational:
Yes
Auto-negotiation:
Disabled
Sec since zeroed:
244
Bytes received:
23230120
Bytes sent:
2502288