Compare lansettings 11.i -> 11.0

[reis]

Hi folks,
I have a problem getting a fast connection to a Matrix1 database server. If i use 11.0, the access is extremely slow, if I use 11.i it´s about 100 times faster (same patches, same port, same user). How can I compare the lan settings between the 2 platforms? With lanadmin I could not see any difference (or I didn´t find the right menue).

Kind regards
Walter

[Pete Randall]

Walter,

Usually this indicates a duplex mismatch between the server and the switch. Try "lanadmin -x 0", where 0 is the PPA or instance number of the card from lanscan. If either end of the connection is set to autonegotiate, manually set it to 100FD. To make this change permanent, change the appropriate /etc/rc.config.d/hp*conf file:
btlan hpbtlanconf
btlan0 hpeisabtconf
btlan1 hpbasetconf
btlan3 hpbase100conf
btlan4 hpgsc100conf
btlan5 hppci100conf
btlan6 hpsppci100conf


Pete

[Steven E. Protter]

lanadmin -x 0

0 is the number from lan0, which you can obtain by looking at /etc/rc.config.d/netconf or the lanscan command.

Also check the switch port settings and make sure they are 100 BaseT manual.

You may need to hard code this into /etc/rc.config.d/hpbtlanconf to insure best speed.

SEP

[Pete Randall · Accepted solution]

Walter,

Forgot to mention - you can change the setting with "lanadmin -X 100FD 0" (where 0 in the instance number again).


Pete

[reis]

We have a Cabletron switch, where I can lock any speed. If I execute lanadmin -x 0 then I get on
11.i: 100 Full-Duplex AUTONEG
and on
11.0: 100 Full-Duplex Auto-Negotiation-ON ,
but the speed difference between 11.0 and 11.i is the same.
As I said it´s the same port!!

Walt

[Pete Randall]

Walter,

I still suggest that you force the setting on the port *AND* the switch to 100FD. You may be seeing a difference in the way 11.0 and 11i handle auto-negotiation and neither of them handle it very well.


Pete

[reis]

Hi Pete,
after I force both lan0 and cabletron to 100 FD all works fine !!
Great work!!

Kind regards
Walter

[Pete Randall]

Glad to hear it, Walter. Just don't forget to make the permanent changes it /etc/rc.config.d/hp*conf!


Pete