LAT problem ( llogin gets disconnected )

From: Umapathy J <pathy_at_serc415.serc.iisc.ernet.in>
Date: Mon, 17 Aug 1998 11:59:14 +0500

hello
        we have a problem with lat. our setup consists of a few
alphaworkstation 500/333 running DUNIX 4.0b, alphaserver 2100 running
OpenVMS, Digital Microvax running VAX/VMS, Digital VAX 11/750 running
VAX/VMS. we have a Geolan 500 10/100 Mbps switch for network
connectivity. all the systems are configured to 10mbps only. most of the
users have alphaworkstation-unix 4.0b and connect to the openvms and
vax/vmx systems using llogin. latsetup has be run and enough number of
ttys have been created on the dunix boxes. users are able to connect to
the vms systems and start working but after sometime the session gets
disconnected or the terminal hangs. this happens very often and we r
having a lot of problems. invariably we have to restart latcp after this
occurs, sometimes llogin starts working after a time gap without
restarting latcp.
this is what we are finding from the statistics

#latcp -d

Node name: CYGNUS
Multicast timer: 60 seconds
LAT version: 5 ECO: 2
Outgoing Port Groups: 0

Selected Interface Name(s): tu0 tu1
LAT Protocol is active
Agent Status: Disabled
Maximum Number of Learned Services: 100


Service information
        Service name: CYGlatcp -d -S

LATCP Server Characteristics for RTP04
Ethernet address: aa-00-04-00-08-04
Number of Active Circuits: 1
Number of Active Sessions: 2

LATCP Server Characteristics for RTP05
Ethernet address: aa-00-04-00-0b-04
Number of Active Circuits: 1
Number of Active Sessions: 1

NUS
        Service ID: Digital UNIX Version V4.0 LAT SERVICE
        Rating: Dynamic 216
        Groups: 0

#latcp -d -S

LATCP Server Characteristics for RTP04
Ethernet address: aa-00-04-00-08-04
Number of Active Circuits: 1
Number of Active Sessions: 2

LATCP Server Characteristics for RTP05
Ethernet address: aa-00-04-00-0b-04
Number of Active Circuits: 1
Number of Active Sessions: 1


#latcp -d -N
LATCP Node Counters
    250920 Seconds since last reset 0 Fwd out-of-seq
messages
     28412 Run messages received 58 Retransmitted
messages
     25293 Run messages transmitted 0 Bad circuit messages
      7249 Slots received 0 Bad circuit slots
      7278 Slots transmitted 0 Accepted
host-initiated
    318562 Bytes received 0 Rejected
host-initiated
       202 Duplicate messages 174614 Multiple nodes seen

LATCP Node Statistics
         7 Circuits created 0 Circuit timeouts
        18 Sessions created 4184 Service messages
xmit
    331584 Frames received 311313 Service messages
recv
     33735 Frames transmitted 311313 Service messages
used
         0 Illegal frames

LATCP Node Errors
         0 Circuit Start 0 HIC Solicit
         0 Circuit Run 0 HIC Response
         0 Circuit Halt 0 HIC Command
         0 Service Anouncement 0 HIC Status
         0 Other Message

TIA

umapathy
-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~                                                                      ~
~   Umapathy J   (e-mail: pathy_at_serc415.serc.iisc.ernet.in)            ~
~   Engineer (Customer Services)         Work Place: ISTRAC            ~
~   CMC Limited                          Voice: 8395130/129 Extn 338   ~ 
~   Bangalore, India                                                   ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Received on Mon Aug 17 1998 - 06:35:12 NZST

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