low network perfomance after installing DU 5.0

From: <Michael.Sievert_at_vew.de>
Date: Wed, 12 Jul 2000 15:53:50 +0200

Hello folks,

I've installed Tru64 5.0A on my AlphaServer 400 (EV4.5, 21064, 233 MHz) with a DEC Tulip 21040 network adapter installed.
After the installation I encountered very low network performance, the maximum throughput is arround 20 kbyte/sec (tested using ftp as well as SMB).
Other workstations in this network segment work fine with 200-500 kbyte/sec (its a 10 MBit/s network).

Where can I look for configuration errors? How can I fine tune the settings?

Previosly installed was Digital Unix 4.0b without any problems.

# netstat -i
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
...
tu0 1500 <Link> 00:00:f8:21:0f:53 346749 0 48881 0 3799
tu0 1500 DLI none 346749 0 48881 0 3799

UERF says:
                                        tu0: DECchip 21040: Revision: 2.4
                                        tu0 at pci0 slot 12
                                        tu0: DEC TULIP (10Mbps) Ethernet
                                         _Interface, hardware address:
                                         _00-00-F8-21-0F-53
                                        tu0: console mode: selecting 10BaseT
                                         _(UTP) port: half duplex

Thanks in advance,
Michael Sievert
Received on Wed Jul 12 2000 - 13:56:59 NZST

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