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Troubleshooting Signaling Alarms
Stream Control Transmission Protocol Association Failure—Signaling (109)
The Stream Control Transmission Protocol Association Failure alarm (major) indicates that the SCTP
association failed. This alarm indicates that the BTS 10200 is unable to communicate with an SGP at the
SCTP protocol level. The problem may be at the M3UA or SUA layer. The primary cause of the alarm
is that the Ethernet cables on the SGP are unplugged or severed. To correct the primary cause of the
alarm, plug the Ethernet cables in or fix the severed connection. The secondary cause of the alarm is that
the SGP is not operational. To correct the secondary cause of the alarm, check the SGP alarms to
determine why it is not operating properly. To troubleshoot the M3UA or the SUA layers, use the
following procedures.
Message Transfer Part 3 User Adapter Troubleshooting Procedure
Use the following steps to determine the source of the problem at the M3UA layer:
Determine if the administrative state of the SCTP is correct.
Step 1
a.
status sctp-assoc id=<sctp-assoc-name>
If the response displays ADMIN STATE ->ADMIN_OOS, the SCTP association has been taken
administratively out of service and needs to be put back in service.
b.
control sctp-assoc id=<sctp-assoc-name>; mode=forced; target-state=INS;
c.
d.
show cs7 asp
The following is an example of the output:
ASP Name
------------
hrn11asp
e.
f.
g.
Cisco BTS 10200 Softswitch Troubleshooting Guide, Release 5.0.x
10-146
Type the following command at the BTS 10200 CLI prompt:
Enter the following command to put the SCTP association in service:
If the administrative state is ADMIN_INS, determine if the association has been taken out of service
on the ITP. Log on to the ITP. If you are unable to log on to the ITP, proceed to Step 2.
If you are able to log on to the ITP, check the state of the associated application service provider
(ASP) by entering the following command:
AS Name
------------
hrn11bts
If the state of the ASP indicates shutdown, someone has administratively taken the association out
of service. Refer to the Cisco ITP User's Guide, at the following universal resource locator (URL),
to put the ASP (SCTP association) back in service:
http://www.cisco.com/univercd/cc/td/doc/product/wireless/moblwrls/itp/23sw/index.htm
If the state is down proceed to Step 2.
If the state of the ASP is inactive, the ASP is probably on the standby BTS 10200. If the ASP on the
active BTS 10200 is inactive, proceed to Step 7.
State
Type
Rmt Port Remote IP Addr
--------
----
-------- --------------- ----------
shutdown
M3UA
11146
Chapter 10
Signaling Troubleshooting
SCTP
10.0.5.13
OL-8723-19
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