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User access limited to 32, how to increase?? (Read 415 times)

May 6^th, 2009 at 11:48am

DMSman Offline
Senior Member
Switch Technician
Ontario, Canada

Posts: 82

I can't seem to find where to increase the amount of simultaneous users, originally we had a single EIU connection which I know has a 32 user limit. We added a second EIU but it still will only allow the 32 users, I also found that a local terminal with a direct serial connection to the switch can't login either once 32 users are in. So I'm assuming it must be an over all limit or CM limit that needs to be increased but haven't been able to come across the option anywhere.

This is whats said when trying to login:

Telnet LINEMODE.
Too many users logged in

Any ideas greatly appreciated, and thanks in advance!!

>table iphost
TABLE: IPHOST
>list all
TOP
INDEX NODENAME       NODEINFO
---------------------------------------------------------------------
0 CM 0 96 4 4
BOTTOM

table IPTHRON
>list all
TOP
LMSNODE TXCAPCT RXCAPCT
   OPTION
----------------------------------------------------------------------------
EIU 0 32000 32000
   $
EIU 1 32000 32000
   $
BOTTOM
>

IP Logged

Reply #1 - May 6^th, 2009 at 3:38pm

mountain Offline
Full Member
NOC Technician
Denver, CO USA

Posts: 170

Keep in mind that each EIU has a different IP address shown in table IPNETWRK. Thus, you must TELNET (or other TCP.IP) to the IP address of the EIU. Otherwise, I will have to do some checking.

I can truthfully say, I have never worked on a switch with that many users logged in. I somehow think you might run into issues with terminal response time since all those terminals are running in the background. Though if you have an XA-CORE maybe that's not an issue.

IP Logged

Reply #2 - May 7^th, 2009 at 9:18am

DMSman Offline
Senior Member
Switch Technician
Ontario, Canada

Posts: 82

Thanks mountain, we do have two seperate IP's for each EIU in IPNETWRK and I can seccessfully connect to either IP address when its under the 32 logged in users. But once its at 32 both IP's will report back "too many users"
The odd part is that even the MAP terminal thats connected via the IOC directly to the switch can't login either once we hit the 32 users, so I assume its probably not an EIU issue.

Would remote Map accesses fit into this equation, I see a RMCONFIG table. It is an XAC which I think has a 96 user limit, I know we have 50+ users sometimes in another switch and its been okay. I've also compared tables and everything looks the same.....

IP Logged

Reply #3 - May 7^th, 2009 at 10:48am

mountain Offline
Full Member
NOC Technician
Denver, CO USA

Posts: 170

Try these commands to see if you have connections which have not released properly.

>netman
>disp tcp

>netman
NETMAN>
>disp tcp
Id Rcv-Q Snd-Q Local Address   LPort Remote Address  RPort State       Owner
-- ----- ----- --------------- ----- --------------- ----- ----------- --------
    0     0  25.200. 16.  1    23  25.  5. 56.112  1954 ESTABLISHED TELNSERV
    0     0   0.  0.  0.  0  1024   0.  0.  0.  0     0 LISTENING   DMSFTS
    0     0  25.200. 16.  1  1023   0.  0.  0.  0     0 LISTENING   ESRMAUD
    0     0   0.  0.  0.  0  1025   0.  0.  0.  0     0 LISTENING   RPMNSRV1
    0     0   0.  0.  0.  0  2700   0.  0.  0.  0     0 LISTENING   MISTCPSV
    0     0   0.  0.  0.  0  2500   0.  0.  0.  0     0 LISTENING   CCTCPSVR
    0     0   0.  0.  0.  0  1026   0.  0.  0.  0     0 LISTENING   RPBKSRV1
    0     0  25.200. 16.  1    23  25.  1. 22. 93 44761 ESTABLISHED TELNSERV
    0     0  25.200. 16.  1    23  25.  1. 22.119 52446 ESTABLISHED TELNSERV
    0   804  25.200. 16.  1    23  25.  5. 56.106  2093 ESTABLISHED TELNSERV
    0     0   0.  0.  0.  0    21   0.  0.  0.  0     0 LISTENING   FXRSVPR
    0     0  25.200. 16.  1    23  25.  5. 80. 70  1866 ESTABLISHED TELNSERV
    0     0   0.  0.  0.  0    23   0.  0.  0.  0     0 LISTENING   TELNSERV

All the connections under column state should be labeled as ESTABLISHED or LISTENING. If there is a different lable, then it is probably a hung connection and tying up one of the 96 resources needed for a connection. TELNET connections are labeled TELNSERV under column OWNER. FTP connections have something like FXRxxxx.

If you have hung connections, you can free them by changing the field TCPCONN in table IPHOST, then changing it back again. There is a FREE command in NETMAN which frees (tears down) each connection, but can be dangerous under certain circumstances. Not reccommended although I have used it without any problems.

IP Logged

Reply #4 - May 8^th, 2009 at 5:00pm

DMSman Offline
Senior Member
Switch Technician
Ontario, Canada

Posts: 82

Thanks, thats a good tool, unfortunately it only shows the 32 telnet users and no hung connections.

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Reply #5 - May 9^th, 2009 at 11:52am

DMSBrit Offline
Full Member
Network Technician
I Love Telcom!!
London, England

Posts: 20

I may be completely off base here as we do not have EIU's on our switches, but it might be worth checking the value of these entries in table OFCENG to see if any of them are set to 32.

MAX_NPT_SESSIONS
MAX_NRL_SESSIONS
MAX_CMAP_SESSIONS
NOS_QUANTITY_OF_SVCS

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Reply #6 - May 12^th, 2009 at 11:01am

DMSman Offline
Senior Member
Switch Technician
Ontario, Canada

Posts: 82

Thanks for the input, unfortunatelystill no luck:(

MAX_NPT_SESSIONS 0
MAX_NRL_SESSIONS 0
NOS_QUANTITY_OF_SVCS 15

MAX_CMAP_SESSIONS ->this one doesn't appear to be in table, can't position on it.

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