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07-21-2011 12:22 PM
07-21-2011 12:22 PM
Hello,
I have a BL860c server with 4 network cards (EWA0, EWB0, EWC0 and EWD0). Only three card are connected via a UTP cable to the LAN network. One cards EWB0 is not connected. I have upgraded my server to 8.4 but now the VMS server is incrementing the errors on this device (carrier check failures.). Can I disable this network port on my server and how?
P.S.
I didn't have this behaviour on VMS 8.3-1H1.
/Toine
Solved! Go to Solution.
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07-21-2011 12:54 PM
07-21-2011 12:54 PM
Re: How to disable ethernet port on VMS Server
How you disable an Ethernet interface depends on the networking stacks you're using. Is your system in a cluster? What protocols/stacks are you using? DECnet (and which flavor)? Which TCPIP? LAT? There is a long list of possible networking protocols you might have but, in a nutshell, you have to shut them off using the particular tool that each uses to control the interfaces in use. Because each individual ethernet device listed is a template device first you'll still see each EWxn but the number of non-zero devices usually indicates how many protocols you have running on each template device.
For DECnet Phase IV it would be NCP
For DECnet Phase V it would be NCL
For TCPIP services you might have to reinvoke SYS$STARTUP:TCPIP$CONFIG to change interfaces or there are commands you can manually issue from the TCPIP> prompt (IF you have explicit directions or have experience changing configured interfaces manually before)
Some other protocols can be managed using LANCP
For LAT you'd have to make changes to LAT device logical names or in LAT startup procs.
For "classic" Infoserver/ESS you'll have to change data in one of the ESS startup data files
bob
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07-21-2011 03:01 PM
07-21-2011 03:01 PM
Re: How to disable ethernet port on VMS Server
I don't know if it'd be a smart thing to do, but you might look at:
sysman help IO SET EXCLUDE
If the device is not in the configuration, then you should, at the
least, get different complaints.
For a hardware fix, buy a cheap network hub/switch, and connect the
unused port to the new (otherwise unused) hub/switch.
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07-21-2011 10:24 PM
07-21-2011 10:24 PM
Re: How to disable ethernet port on VMS Server
Toine,
start with ANALYZE/SYSTEM and SDA> SHOW LAN
This will list all the network protocols on all the LAN adapters in your system. Then look at the protocols, which are running on EWB0. For each protocol, there should be a method to prevent it from starting on this LAN adapter.
If you provide the output from the above command for EWB0, we can certainly help you disable all the protocols on that LAN adapter. If no protocols are active, no packets will be sent and no counters will be incremented.
Volker.
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07-22-2011 05:10 AM
07-22-2011 05:10 AM
Re: How to disable ethernet port on VMS Server
Hi Toine,
I assume that what you really want is for EWB0 to stop racking up errors. Since this is a bl860c, then it must be installed in a c3000 or c7000 blade enclosure, with Ethernet Interconnect modules installed in IC bay 1 (for c3000) or IC bays 1 & 2 (for c7000). One solution would depend on the type of Interconnect modules you have installed in your enclosure.
The connections between the blade LOM's (NICs) and the Interconnect bays are "hard wired", i.e. they exist no matter what. So if your interconnects are either switches or Virtual Connect, then confirm that the device is correctly configured for speed/duplex/autoneg/etc in LANCP.
For VC, check the setup of the ethernet ports in the VC profile. I have seen some strange combinations required to get the link up between blade and VC. However, since by implication, EWD0 is working and EWB0 is not, check that they are set up identically in VC and LANCP, (EWB0 and EWD0 use the same IC Module).
If your IC modules are Ethernet Switches then confirm the port settings etc, as you would for a normal Server -> Network connection.
Finally, if your IC modules are Pass-through's then you should consider Steven's option of making a connection to a dummy switch/hub (not a recommendation, just a probable solution.)
If none of the above work, then go to the other suggestions above.
Hope this helps.
Dave
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07-22-2011 05:55 AM
07-22-2011 05:55 AM
Re: How to disable ethernet port on VMS Server
Hi Again,
Below the ANA/SYS> SHOW LAN of the EWB0 device:
I already disable the card in DecNet via:
ncl> disable routing circuit csmacd-2
But this not enough what should I disable more?
-- EWB Device Summary 22-JUL-2011 14:32:52 --
LSB address = EDC3A000
Device state = 00003003 RUN,INITED,FP_CPUAFF,AUTO_ENA
UCB UCB Addr Fmt Value Client State
--- -------- --- ----- ------ -----------
EWB0 B0ABA080
EWB4 B12DEC80 802E 08-00-2B-80-3C DNAME 0017 STRTN,LEN,UNIQ,STRTD
EWB5 B12DF340 Eth 80-3C DNAME 0017 STRTN,LEN,UNIQ,STRTD
EWB7 B13294C0 Eth 60-01 MOPDL 0017 STRTN,LEN,UNIQ,STRTD
EWB8 B1329D00 802E 08-00-2B-60-01 MOPDL 0017 STRTN,LEN,UNIQ,STRTD
EWB9 B132A740 Eth 60-02 MOPRC 0017 STRTN,LEN,UNIQ,STRTD
EWB10 B132B180 802E 08-00-2B-60-02 MOPRC 0017 STRTN,LEN,UNIQ,STRTD
EWB11 B132BBC0 Eth 90-00 LOOP 0015 STRTN,UNIQ,STRTD
EWB12 B132C600 802E 08-00-2B-90-00 LOOP 0017 STRTN,LEN,UNIQ,STRTD
/Toine
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07-22-2011 06:25 AM - edited 07-22-2011 06:29 AM
07-22-2011 06:25 AM - edited 07-22-2011 06:29 AM
SolutionToine,
please verify, that CSMACD-2 is really EWB0 ! Use $ MC NCL SHOW CSMA-CD STAT * COMM PORT
DECnet normally starts with CSMACD-0 on the first LAN adapter, i.e. EWA0, so CSMACD-2 is EWC0 by default, although you might have changed that in your DECnet configuration.
Then use $ MC NCL DISABLE MOP CIRCUIT CSMACD-2
to stop MOPDL, MOPRC und LOOP on EWB0:
To stop the DNAME protocol, you need to define a logical name in SYLOGICALS.COM (see DECnet release notes):
$ DEFINE/SYSTEM DNS$ETHERNET_DEVICE "Don't use _EWB0: "
After the next reboot, DNAME will not start on EWB0: anymore
Volker.
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07-22-2011 06:47 AM
07-22-2011 06:47 AM
How to disable ethernet port on VMS Server
Hi,
Thank you all for the good and quick responses.
Regards,
/Toine
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07-22-2011 07:42 AM
07-22-2011 07:42 AM
Re: How to disable ethernet port on VMS Server
And the solution to your problem was....?
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07-23-2011 05:45 AM
07-23-2011 05:45 AM
Re: How to disable ethernet port on VMS Server
Hello,
The solution for the problem was very simple.
Just disbale Auto-negotiation via LANCP on EWB0 device. Then the error count is not increasing on that device.
$ MC LANCP SET DEVICE EWB0/NOAUTO
Regards,
/Toine