[cisco-voip] DerSphere_II (2000) drops towards CCM3.3
Ryan Ratliff
rratliff at cisco.com
Wed Apr 20 09:15:11 EDT 2005
IP phones will send keepalives on tcp 2000 to both their active CM and
their backup CM. This allows for faster failover in case communication
to the active server is lost.
Your other error however is not related to the firewall. Take a look
at
http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/3_3/
alarms31.htm. A transient error with reason code of 3 means
"DatabaseConfigurationError" ie your CFB is trying to register but is
not in the database. If the source is one of your CMs try adding that
conference bridge as a software CFB via CCMAdmin. The alternative is
to go into Service Parameters for the server sourcing the error, choose
the IPVMSA service, and set the CFB RunFlag to False.
-Ryan
On Apr 19, 2005, at 11:00 PM, Darren Ward wrote:
In Cisco IPTel tcp port 2000 is actually the skinny protocol your
phones communicate with the CallMananger on.
Your firewall is blocking half the communications hence the
registration failures.
Check out:
http://www.cisco.com/en/US/customer/products/sw/voicesw/ps556/
products_tech_note09186a00801a62b9.shtml
Regards
Darren
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of ALI Rijas
Mannanthara
Sent: Wednesday, 20 April 2005 11:43 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] DerSphere_II (2000) drops towards CCM3.3
Hi,
With in a minute this error pops up in Application event LOG in CCM3.3
thrice .Call manager is functional . Can some one help regarding this.
Event Type: Error
Event Source: Cisco CallManager
Event Category: None
Event ID: 3
Date: 4/20/2005
Time: 6:57:15 AM
User: N/A
Computer: XXXX-XXX-01-CM01
Description:
Error: DeviceTransientConnection - Transient connection attempt.
Connecting Port: 0
Device name [Optional].: CFB_XXXX
Device IP address.:
Device type. [Optional]: 50
Reason Code [Optional].: 3
App ID: Cisco CallManager
Cluster ID: StandAloneCluster
Node ID:
Explanation: A connection was established and immediately dropped
before completing registration. Incomplete registration may indicate a
device is rehoming in the middle of registration. The alarm could also
indicate a device misconfiguration, database error, or an
illegal/unknown device trying to attempt a connection.
Recommended Action: No action is required if this event was issued as a
result of a normal device rehome..
Also from one of my voice segments I see lot of DerSphere_II (2000)
drops in firewall that were destines towards Subscriber while for that
Voice segment I have a subscriber as primary CCM.
Number: 4681000
Date: 20Apr2005
Time: 1:35:01
Product: VPN-1 & FireWall-1
Interface: eth1c0
Origin: fw3 (220.225.142.20)
Type: Log
Action: Drop
Protocol: tcp
Service: DerSphere_II (2000)
Source: IP phone
Destination: CCM
Source Port: 52267
Information: message_info: Address spoofing
Thanks ,
Rijas
EPBX : 6226
VoIP : 248-994-4858
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