| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 1098.1 | Delni's | KALI::TOWNLEY | | Fri Jun 10 1994 11:21 | 4 |
| Hi,
Please Fax the configuration to me and we'll look into this.
Thanks, Tom Fax # 508-486 6093
|
| 1098.2 | Is the DEChub One AUI port active? | LEVERS::CARRAFIELLO | | Fri Jun 10 1994 11:55 | 18 |
| re .0
Dave,
Are you sure that the DECbridge has been configured to use the
DEChub One's AUI port? The DECbridge powers up with all ports
configured to the front panel. In order to use the AUI port on the
DEChub One you must redirect Port 4 of the bridge from the front panel
to the DEChub One AUI port.This has to be done manually through the
console port by attaching a terminal to the back of the DEChub One.
If this hasn't been done it might be possible that your load is
taking some other longer path through the network via one of the other
front panel port connections on the DECbridge.
Thanks,
Mike
|
| 1098.3 | Yellow LED = Back door | CGOOA::KASPER | Amiga + Homebrew = Happiness | Fri Jun 10 1994 17:17 | 7 |
| Yes I sent it through the back door...Yellow LED and all. 13, 1, Yes,
<CR>, 2, 3 are the commands. I know them by heart, having done them
more that 20 times....
RE: .1 I shall put the config drawings on the FAX..
DAve
|
| 1098.4 | This MIGHT be a heartbeat issue! | AKRON1::SMITH | Sic Semper Potatum Reclinus| Jeff @DTN 431-2712 | Mon Jul 11 1994 19:08 | 39 |
|
RE: .0
Hmmmm.... If I'm not mistaken, I've just seen this same problem
today...
The senario even sounds familiar.... in my case the customer removed a
3rd party "hub-like" device that they had two DELNIs connected to,
then connected the DB900 Onehub AUI port to one of the DELNIs and one
of the front AUI ports to the other DELNI. (On both DELNIs, the
Local/Global switch was in Local)
In any case, DECnet performance as the transport for TAPESYS network
backups went from about 1Gbyte per hour to about 150Mbytes per hour.
Using a LAN Ananyzer, I was able to determine that there were no
obvious LAN problems to account for this poor performance and after
looking at the systems involved there were no obvious system issues
either.
So, just for something to try I decided to turn off "heartbeat" on one
of the DELNIs by installing the loopback connector on the global port
and throwing the switch to Global.
In an instant, the backup performance jumped from very poor to as good
if not better than before.
I'm not sure at this point which DELNI was on the Onehub AUI port, but
it looked to me like we were having problems on both AUI ports
connected to DELNIs so we went ahead and configured the other DELNI the
same way.
Jeff Smith
MCS Systems Support Engineer
Cleveland Ohio
DTN 431-2712
|
| 1098.5 | Works with reconfig. | CGOS01::DMARLOWE | Have you been HUBbed lately? | Tue Jul 12 1994 02:27 | 18 |
| As my other brother Dave is on holidays I went on site and did a
reconfig.
Apparently in the config. of .1, the DELNI's were cascaded with
a LANbridge 150 connected to one of the top 8 local DELNI ports. The
LB 150 worked fine but the DB 900 didn't so maybe its got something
to do with IEEE 802.3 timing parameters. ie. 90C/T and Sun stations.
Anyways there was a config change and the DELNI's now have DETPM's
on the global port with a cross over cable to one of the UTP ports
on the DB 900. Works just great. Some of the other UTP ports go via
a cross over cable, to DETPR's and those also appear to work just
fine.
Anyways, everything is working just fine. Won't be able to try
loopback connectors, etc as the network is now operational.
dave
|
| 1098.6 | Good move, but still a workaround | AKRON1::SMITH | Sic Semper Potatum Reclinus | Tue Jul 12 1994 09:27 | 12 |
| RE .5
Sounds to me like you've completely bypassed the AUI ports on the
DB900MX.....good move....
However, just like my configuration, this seems to be a work around for
a REAL problem.
How about a comment from someone "in the know" about the DB900MX????
Customers should be able to connect one of the DB900MX AUI ports to a
DELNI configured in local mode....or shouldn't they?
|