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Conference noted::atm

Title:atm
Moderator:NPSS::WATERS
Created:Mon Oct 05 1992
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:970
Total number of notes:3630

952.0. "LAT SUPPORT PROBLEM OVER ATM ELAN" by QDOV01::SKG () Fri May 23 1997 09:31


                LAT SUPPORT PROBLEM OVER ATM
               ==============================

One of our customer MARUTI UDYOG LTD is having atm and want lat over atm so  
that printer can work with dec servers. 
 
But we are facing problem in configuring lat over atm and w/o that it is not 
possible to define fix tty in dec server 90 TL for printer. 
 
We have define elan and ip over elan is working fine.hence terminal connected 
to dec server are working thru telnet/ip.But when we try to add elan0 in lat 
interface it gives following error: 
 
#latcp -e elan0 
"invalid network adapter elan0 specified" 
 
The configuration and all details are as follows: 
 
CUSTOMER NAME : MARUTI UDYOG LIMITED 
SYSTEM        : ALPHA SERVER 2100 MODEL 4/200(FIRMWARE 4.5) 
UNIX          : DIGITAL UNIX 4.0B 
ATM-ADAPTER   : ATMWORKS 350 
ATM SWITCH    : GIGA SWITCH/ATM 
 
<-status before atm-> 
===================== 
#ifconfig -a 
Enabled signalling on lta0. 
Error Contacting LAN Emulation Module. 
Error Contacting LAN Emulation Module. 
Starting ATM Network  
ATM network started  
tu0: flags=c63<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST,SIMPLEX> 
     inet 150.6.11.11 netmask ffff0000 broadcast 150.6.255.255 ipmtu 1500  
 
sl0: flags=10<POINTOPOINT> 
 
lo0: flags=c89<UP,LOOPBACK,NOARP,MULTICAST,SIMPLEX> 
     inet 127.0.0.1 netmask ff000000  ipmtu 1536  
 
ppp0: flags=10<POINTOPOINT> 
 
<-Starting atm-> 
================ 
#atmconfig source file=/etc/elan.conf 
 
Enabled signalling on lta0. 
Starting ATM Network  
ATM network started  
 
(where contents of file /etc/elan.conf are as follows:) 
------------------------------------------------------ 
#more /etc/elan.conf 
 
print Starting ATM Network 
up driver=lta0 
wait state=up driver=lta0 
run /usr/sbin/atmsig up driver=lta0 wait 
run /usr/sbin/atmarp -c lis=0 driver=lta0 
sleep 3 
run /usr/sbin/atmelan create driver=lta0 les=digit0 
run ifconfig elan0 150.7.1.1 netmask 255.255.0.0 up    
print ATM network started  
 
<-status after atm startup-> 
============================ 
 
#ifconfig -a 
        
tu0: flags=1c63<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST,SIMPLEX,OACTIVE> 
     inet 150.6.11.11 netmask ffff0000 broadcast 150.6.255.255 ipmtu 1500  
 
sl0: flags=10<POINTOPOINT> 
 
lo0: flags=c89<UP,LOOPBACK,NOARP,MULTICAST,SIMPLEX> 
     inet 127.0.0.1 netmask ff000000  ipmtu 1536  
 
ppp0: flags=10<POINTOPOINT> 
 
lis0: flags=8e0<NOTRAILERS,RUNNING,NOARP,SIMPLEX> 
 
elan0: flags=e63<UP,BROADCAST,NOTRAILERS,RUNNING,ALLMULTI,MULTICAST,SIMPLEX> 
     inet 150.7.1.1 netmask ffff0000 broadcast 150.7.255.255 ipmtu 1500  
 
 
#atmelan show 
        Local LEC ATM Address: 3999990000000008002bb5f900.08002b808a00.00 
              LES ATM Address: 3999990000000008002bb5f900.08002bb5f911.00 
              BUS ATM Address: 3999990000000008002bb5f900.08002bb5f912.00 
                     Lan Type: Ethernet/802.3 
               Max frame Size: 1516 
                   Proxy Flag: FALSE 
                    Elan Name:  
                       LEC ID: 2 (0x0002) 
     Registered MAC Addresses: 08-00-2b-80-8a-00 
              Control Timeout: 10 
      Max Unknown Frame Count: 0 
       Max Unknown Frame Time: 1 
                  VCC Timeout: 1200 
              Max Retry Count: 2 
                   Aging Time: 300 
           Forward Delay Time: 15 
         Topology Change Flag: FALSE 
         LE-ARP Response Time: 1 
                Flush Timeout: 4 
         Path Switching Delay: 6 
                Control State: S_OPERATIONAL 
  Illegal Control Frames Rcvd: 0 
    Control Transmit Failures: 0 
   Unicast Frames Sent Direct: 0 
       Unicast Frames Flooded: 0 
     Unicast Frames Discarded: 0 
      Non-Unicast Frames Sent: 0 
     Frames Received from BUS: 266 
  Frames Received Data Direct: 0 
     Receive Frames Discarded: 0 
       Echo Frames Suppressed: 0 
          Control Frames Sent: 2 
      Control Frames Received: 250 
         LE-ARP Requests Sent: 1 
     LE-ARP Requests Received: 0 
 
#more /etc/atmhosts 
0000000000000000000000000000000000000000        PVC 
3999990000000008002bb5f90008002bb5f91100        digit0 
  
#uerf  
 
----- EVENT INFORMATION ----- 
 
EVENT CLASS                             OPERATIONAL EVENT  
OS EVENT TYPE                  301.     SYSTEM SHUTDOWN  
SEQUENCE NUMBER                  1. 
OPERATING SYSTEM                        DEC OSF/1  
OCCURRED/LOGGED ON                      Fri May 23 00:38:59 1997 
OCCURRED ON SYSTEM                      digital  
SYSTEM ID                 x00020009     CPU TYPE:  DEC 2100  
SYSTYPE                   x00000000 
MESSAGE                                 System rebooted by root  
 
********************************* ENTRY   125. ********************************* 
 
----- EVENT INFORMATION ----- 
 
EVENT CLASS                             OPERATIONAL EVENT  
OS EVENT TYPE                  300.     SYSTEM STARTUP  
SEQUENCE NUMBER                  0. 
OPERATING SYSTEM                        DEC OSF/1  
OCCURRED/LOGGED ON                      Fri May 23 00:40:16 1997 
OCCURRED ON SYSTEM                      digital  
SYSTEM ID                 x00020009     CPU TYPE:  DEC 2100  
SYSTYPE                   x00000000 
MESSAGE                                 Alpha boot: available memory from  
                                         _0x16f0000 to 0x1fffe000  
                                        Digital UNIX V4.0B  (Rev. 564); Thu  
                                         _May 22 21:07:44 GMT+0500 1997   
                                        physical memory = 512.00 megabytes.  
                                        available memory = 489.10 megabytes.  
                                        using 1958 buffers containing 15.29  
                                         _megabytes of memory  
                                        Firmware revision: 4.5  
                                        PALcode: OSF version 1.45  
                                        ibus0 at nexus  
                                        AlphaServer 2100 4/200  
                                        cpu 0 EV-4s 1mb b-cache  
                                        gpc0 at ibus0  
                                        pci0 at ibus0 slot 0  
                                        tu0: DECchip 21040-AA: Revision: 2.3  
                                        tu0 at pci0 slot 0  
                                        tu0: DEC TULIP Ethernet Interface,  
                                         _hardware address: 08-00-2B-E5-26-2D  
                                        tu0: console mode: selecting 10BaseT  
                                         _(UTP) port: half duplex: no link  
                                        psiop0 at pci0 slot 1  
                                        Loading SIOP: script 1000d00, reg  
                                         _81400000, data 406c2cb0  
                                        scsi0 at psiop0 slot 0  
                                        rz0 at scsi0 target 0 lun 0 (LID=0)  
                                         _(DEC     RZ29B    (C) DEC 0016)  
                                         _(Wide16)  
                                        rz1 at scsi0 target 1 lun 0 (LID=1)  
                                         _(DEC     RZ28M    (C) DEC 0616)  
                                        rz4 at scsi0 target 4 lun 0 (LID=2)  
                                         _(TOSHIBA CD-ROM XM-4101TA 1084)  
                                        eisa0 at pci0  
                                        ace0 at eisa0  
                                        ace1 at eisa0  
                                        lp0 at eisa0  
                                        fdi0 at eisa0  
                                        fd0 at fdi0 unit 0  
                                        pci2000 at pci0 slot 8  
                                        lta0: Microcode Version: 1.11,  
                                         _Hardware Rev: 0.04  
                                        lta0 at pci2000 slot 0  
                                        lta0: DEC DGLPB ATM Interface,  
                                         _hardware addresses:  
                                            08-00-2B-80-8A-00  
                                            08-00-2B-80-8A-01  
                                            08-00-2B-80-8A-02  
                                            08-00-2B-80-8A-03  
                                            08-00-2B-80-8A-04  
                                            08-00-2B-80-8A-05  
                                            08-00-2B-80-8A-06  
                                            08-00-2B-80-8A-07  
                                        ATM Subsystem configured with 1  
                                         _restart threads  
                                        ltaregister: registered unit 0 with  
                                         _CMM  
                                        lvm0: configured.  
                                        lvm1: configured.  
                                        kernel console: ace0  
                                        dli: configured  
                                        ATM UNI 3.x signalling: configured  
                                        ATM IP interface: configured  
 
<-lat informations-> 
==================== 
#latcp -d 
 
 
 
Node name:  DIGITAL 
Multicast timer:  	60 seconds 
LAT version:  5		ECO:	2 
Outgoing Port Groups:	0 
 
Selected Interface Name(s):     tu0 
LAT Protocol is active 
Agent Status: Disabled 
Maximum Number of Learned Services: 100 
 
 
Service information 
	Service name: 	DIGITAL 
	Service ID: 	Digital UNIX Version V4.0 LAT SERVICE 
	Rating: 	Dynamic 	254 
	Groups:		0 
 
<-error while adding interface in lat-> 
 
#latcp -e elan0 
Invalid network adapter elan0 specified 
 
 
please go thru all details and let me know if some patches are reqd for 
digital unix to support lat over atm. 
 
AS MARUTI IS THE BIGGEST SITE OF DIGITAL,INDIA , HENCE WE REQUIRE SOME 
SOLUTION 
ON URGENT BASIS. 
 
Many Many thanks to all, 

SANJAY KUMAR GUPTA
DIGITAL INDIA,DELHI
T.RTitleUserPersonal
Name
DateLines
952.1LAT over LANE not currently supportedSMURF::GREBUSDTN 381-1426 - Digital UnixWed May 28 1997 11:5817
    LAT over LANE has never been formally supported.
    
    The specific problem you are seeing is the result of a bug in the 
    STREAMS DLB code (not ATM or LAT).  See note 840 for more information.
    The fix for that bug is in PTmin (V4.0D) but there has never been an
    IPMT to get it backported to any shipping releases.
    
    With that fix, LAT should work, but it is still unsupported, because
    there has been essentially no testing done.
    
    I'm hoping to get some testing done so that we can claim support in a
    future release.
    
    	/gary