communication problem after upgrade OS version

[gunalan_1]

there is a 2 network cards is connected

1) EWA0 which is link to PLC
2) EWB0 which is link to our local PC


Device Counters EWA0:
Value Counter
----- -------
2843 Seconds since last zeroed
0 Bytes received
0 Bytes sent
0 Packets received
0 Packets sent
0 Multicast bytes received
13 Carrier Check failure
* all athers shows 0 value*

only facing problem to talk with PLC program.
sometimes when i ping to my PLC its shows active but after i restart my process
i unable to ping again.

[Steven Schweda]

> 13 Carrier Check failure

Is that stable or growing?

Sounds as if you don't really have a good
network connection. Bad cable? Bad
hub/switch? What all is between the Alpha
and the PLC? What is the network speed?
What is the EWA0 speed/duplex setting?
Hub/switch speed/duplex setting? PLC
speed/duplex setting?

MCR LANCP SHOW DEVI EWA0 /CHAR

> [...] after i restart my process [...]

Process? Which process?

[Karl Rohwedder]

It looks as if EWA0 is not connected/configured, since no bytes are sent/received.

regards Kalle

[atul sardana]

Dear gunalan,
For communication problem.........i suggest you with some examples....pls try and reply....
First you check all tcpip services is enabled or not in your system after upgrading with command
$ucx show services
Service Port Proto Process Address State

BIND 53 TCP,UDP TCPIP$BIND 0.0.0.0 Disabled
BOOTP 67 UDP TCPIP$BOOTP 0.0.0.0 Enabled
ESNMP 705 UDP ESNMP 0.0.0.0 Disabled
FINGER 79 TCP TCPIP$FINGER 0.0.0.0 Disabled
FTP 21 TCP TCPIP$FTP 0.0.0.0 Enabled
MOUNT 10 TCP,UDP TCPIP$MOUNTD 0.0.0.0 Disabled
NFS 2049 UDP TCPIP$NFS 0.0.0.0 Enabled
NTP 123 UDP TCPIP$NTP 0.0.0.0 Disabled
PORTMAPPER 111 TCP,UDP TCPIP$PORTM 0.0.0.0 Enabled
SNMP 161 UDP TCPIP$SNMP 0.0.0.0 Enabled
SPAGENT 4999 TCP SWCC_AGENT 0.0.0.0 Disabled
SPGUI 4998 TCP not defined 0.0.0.0 Disabled
TELNET 23 TCP not defined 0.0.0.0 Enabled
TFTP 69 UDP TCPIP$TFTP 0.0.0.0 Enabled

if all services is working fine as per ur requirements then check network cards status with command
$show interface
TCPIP> sho inter
Packets
Interface IP_Addr Network mask Receive Send MTU

IE0 10.96.0.21 255.0.0.0 381931285 4107205 1500
LO0 127.0.0.1 255.0.0.0 3325 3325 4096
WE0 85069 0 1500
if any problem in packets received or sent counts then rectify it...

Atul Sardana

[gunalan_1]

hai,

i only can test my new server during production stop.The next production stop will be next week. i will feedback after the test.

thank you for kind of feedback,

regards,
gunalan

[gunalan_1]

hi, this is the network status after i tested. i think the problem not from my network, its may be from the C code as Mr. Hoff said.


Device Counters EWA0:
Value Counter
----- -------
11141 Seconds since last zeroed
181032319 Bytes received
294270900 Bytes sent
2500121 Packets received
2460168 Packets sent
2299353 Multicast bytes received
138619 Multicast bytes sent
0 unrecognized unicast destination packets
7284 unrecognized multicast destination packet.

*others all 0 values*

UCX>show interface
Interface IP_Addr Network mask Receiv Send MTU

WE0 192.168.2.120 255.255.255.0 2607830 2577985 1500
WE10 138.223.226.142 255.255.255.0 526 876 1500
WE0 127.0.0.1 255.0.0.0 4 16 65535


regards, guna