Hello everybody,
Two days already I'm trying to get my network to work properly.
Initially my PWS600 had just one network adapter - the one that is embedded. Then I added another one (taken from my AS 1200) and reinstalled VMS.
Here is the situation:
WE0 - 192.168.0.17 (pws600-we0.domain.name)
WE1 - 192.168.0.18 (pws600-we1.domain.name)
Having this setup and network cable plugged only in we0 (in fact I do not need we1 - I put it just for testing) and pinging from another computer in my home network every second packet is lost. The same is valid when the cable is plugged in we1. Probably I am doing something wrong because it seems that VMS replies with one packet on every interface... Why is this happening?
I resolved this by just setting
$tcpip set nointerface we1
But here come the true problems:
1. we0 is painfully slow... when I download files fromm y local network the speed is 12kb or something... I remeber that when I had only one adapter with my previous installation of VMs on this workstation the speed was OK. So the problem is not with the adapter...
2. I resolved this by restarting the tcpip services (this started again both interfaces) and setting:
$tcpip set nointerface we0
and using just the we1. The speed is OK - over 1MB/s. But my routing does not works any more...
Adding it with:
SET ROUTE/DEFAULT/GATEWAY=192.168.0.3/PERM
says that there is already sush rule (or similar), but:
SHOW ROUTE
says:
AH 127.0.0.1 127.0.0.1
AN 192.168.0.0/24 192.168.0.18
AH 192.168.0.18 192.168.0.18
When is only we0 enabled:
AN 0.0.0.0 192.168.0.3
AH 127.0.0.1 127.0.0.1
AN 192.168.0.0/24 192.168.0.17
AH 192.168.0.17 192.168.0.17
When both are enabled (in which case I loose packets):
AN 0.0.0.0 192.168.0.3
AH 127.0.0.1 127.0.0.1
AN 192.168.0.0/24 192.168.0.17
AN 192.168.0.0/24 192.168.0.18
AH 192.168.0.17 192.168.0.17
AH 192.168.0.18 192.168.0.18
Why when I disable the first interface (we0) disappears the default route 192.168.0.3? Is this normal?
I have not read the docs for tcpip, just several help pages, but I lost enough time with this. I can just remove the second interface (we1) from the system, and hope that the problem will disappear...
Any suggestions or links to relevant docs are welcome
TCP is trying to share the load on both networks, since the IP address is telling it they are the same network - it should be able to send/receive off both interfaces. If you had two addresses in different networks (i.e. the address/netmask showed different networks), it would have worked, just like only having one.
You probably could have set up cost metrics on the different interfaces, but usually you only have two NIC if you are talking with new different networks (i.e. intranet on one, internet on the other).
One the same cable, two NIC's really won't help speed, since the card can already out-driver the wire.
I also tought that this could be load balancing. But I'm wondering why the we0 interface is so slow? But doesn't matters, I'll just remove the card. I didn't do it up to the moment because is hard to open/close my PWS and hoped that it could be solved without removeing the adapter.
Hm... I removed the adapter and measured (with "wget" in Tru64) the speed of the embedded NIC - it is 600-800KB/sec, which I think is normal for 10mbit. Seems the problem is solved.
P.S. I remember that OpenVMS autodetects the connection and sets the speed on we0 - how can i check what it had detected?
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