Re: CCM lost the MGCP control of the Gateway - DMVPN Circuit

acerda · ‎03-23-2011

Hi All,

We have a remote office with a mgcp gateway [ 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(24)T ] registered to Cisco Callmanager 4.1.3 thru a DMVPN connectivity.

The Callmanager is losting the control of the PRI two times per week...so inbound and outbound calls has been affected, do you have ny insight on this error?

Thanks in advantange!

ivgwdmvpn#show mgcp
Load for five secs: 14%/11%; one minute: 16%; five minutes: 16%
Time source is NTP, 18:54:25.374 UTC Wed Mar 23 2011
MGCP Admin State ACTIVE, Oper State ACTIVE - Cause Code NONE
MGCP call-agent: 10.10.19.7 2427 Initial protocol service is MGCP 0.1
MGCP validate call-agent source-ipaddr DISABLED
MGCP validate domain name DISABLED
MGCP block-newcalls DISABLED
MGCP send SGCP RSIP: forced/restart/graceful/disconnected DISABLED
MGCP quarantine mode discard/step
MGCP quarantine of persistent events is ENABLED
MGCP dtmf-relay voip codec all mode out-of-band
MGCP dtmf-relay for voAAL2 is SDP controlled
MGCP voip modem passthrough mode: NSE, codec: g711ulaw, redundancy: DISABLED,
MGCP voaal2 modem passthrough disabled
MGCP voip modem relay: Disabled
MGCP T.38 Named Signalling Event (NSE) response timer: 200
MGCP Network (IP/AAL2) Continuity Test timer: 200
MGCP 'RTP stream loss' timer disabled
MGCP request timeout 500
MGCP maximum exponential request timeout 4000
MGCP gateway port: 2427, MGCP maximum waiting delay 3000
MGCP restart delay 0, MGCP vad DISABLED
MGCP rtrcac DISABLED
MGCP system resource check DISABLED
MGCP xpc-codec: DISABLED, MGCP persistent hookflash: DISABLED
MGCP persistent offhook: ENABLED, MGCP persistent onhook: DISABLED
MGCP piggyback msg ENABLED, MGCP endpoint offset DISABLED
MGCP simple-sdp ENABLED
MGCP undotted-notation DISABLED
MGCP codec type g711ulaw, MGCP packetization period 20
MGCP JB threshold lwm 30, MGCP JB threshold hwm 150
MGCP LAT threshold lwm 150, MGCP LAT threshold hwm 300
MGCP PL threshold lwm 1000, MGCP PL threshold hwm 10000
MGCP CL threshold lwm 1000, MGCP CL threshold hwm 10000
MGCP playout mode is adaptive 60, 40, 1000 in msec
MGCP Fax Playout Buffer is 300 in msec
MGCP media (RTP) dscp: ef, MGCP signaling dscp: af31
MGCP default package: mt-package
MGCP supported packages: gm-package dtmf-package trunk-package line-package
                         hs-package rtp-package atm-package ms-package dt-package
                         mo-package res-package mt-package sst-package pre-package
                         srtp-package md-package
MGCP Digit Map matching order: shortest match
SGCP Digit Map matching order: always left-to-right
MGCP VoAAL2 ignore-lco-codec DISABLED
MGCP T.38 Max Fax Rate is DEFAULT
MGCP T.38 Fax is DISABLED
MGCP T.38 Fax ECM is ENABLED
MGCP T.38 Fax NSF Override is DISABLED
MGCP T.38 Fax Low Speed Redundancy: 0
MGCP T.38 Fax High Speed Redundancy: 0
MGCP Fax relay SG3-to-G3: ENABLED
MGCP Fax relay ANSam suppression: DISABLED
MGCP control bound to interface Loopback1
MGCP media bound to interface Loopback1
MGCP Upspeed payload type for G711ulaw: 0, G711alaw: 8
MGCP Dynamic payload type for Cisco fax indication: 96, Cisco fax ack: 97
MGCP Static payload type for G.726-16K codec
MGCP Dynamic payload type for G.726-24K codec
MGCP Dynamic payload type for G.726-32K codec
MGCP Dynamic payload type for G.Clear codec
MGCP Dynamic payload type for NSE is 100
MGCP Dynamic payload type for NTE is 99
MGCP rsip-range is enabled for TGCP only.
MGCP Comedia role is NONE
MGCP Comedia check media source is DISABLED
MGCP Comedia SDP force is DISABLED
MGCP g729 variants use static payload type and contain annexb in SDP
MGCP Guaranteed scheduler time is DISABLED
MGCP Disconnect delay error recovery DISABLED
MGCP DNS stale threshold is 30 seconds

ivgwdmvpn#show sccp
Load for five secs: 19%/12%; one minute: 16%; five minutes: 16%
Time source is NTP, 18:55:40.251 UTC Wed Mar 23 2011

SCCP Admin State: UP
Gateway Local Interface: Loopback1
        IPv4 Address: 10.12.12.77
        Port Number: 2000
IP Precedence: 5
User Masked Codec list: None
Call Manager: 10.10.16.5, Port Number: 2000
                Priority: N/A, Version: 3.1, Identifier: 20
                Trustpoint: N/A
Call Manager: 10.10.19.9, Port Number: 2000
                Priority: N/A, Version: 3.1, Identifier: 15
                Trustpoint: N/A
Call Manager: 10.10.19.7, Port Number: 2000
                Priority: N/A, Version: 3.1, Identifier: 10
                Trustpoint: N/A

Tracy Larson · ‎03-23-2011

I used to have this same problem so I converted all my remotes to H323. Backhauling a D channel across the WAN always seemed to introduce more problems than it was worth. While MGCP is easy to use, H323 is far more flexible and once you get used to it you will love it. Just my two cents on your problem. TAC simply blamed the network while running MGCP so they were no help.

Good Luck!

acerda · ‎03-24-2011

Thanks Tracy!

However I found something that I don't have configured (in red) maybe can help. Did you try with this before to go H323?

sccp ccm group 1

description Conference Bridge

bind interface Loopback1

associate ccm 10 priority 1

associate ccm 15 priority 2

associate ccm 20 priority 3

associate profile 1 register OAKCONF

registration timeout 3

connect interval 60

registration retries 3

keepalive retries 3

connect retries 30

connect interval 30

switchover method immediate

ivg-dmvpn#

registration retries retry-attempts

Example:

Router(config-sccp-ccm)# registration retries 15

(Optional) Sets the number of registration retries that SCCP tries to register with the Cisco CallManager.

• retry-attempts—Range is 1 to 32. Default is 3.

connect retries number

Example:

Router(config-sccp-ccm)# connect retries 5

(Optional) Specifies the number of times that a DSP farm attempts to connect to a Cisco CallManager when the current Cisco CallManager connections fails.

• number—Range is 1 to 32. Default is 3.

connect interval seconds

Example:

Router(config-sccp-ccm)# connect interval 1200

(Optional) Specifies the amount of time that a DSP farm profile waits before attempting to connect to another Cisco CallManager when the current Cisco CallManager fails to connect.

• seconds—Range is 1 to 3600. Default is 60.

keepalive retries number

Example:

Router(config-sccp-ccm)# keepalive retries 7

(Optional) Sets the number of keepalive retries from SCCP to the Cisco CallManager.

• number—Range is 1 to 32. Default is 3.

Tracy Larson · ‎03-24-2011

Unfortunately that is the first thing the TAC played with but maybe you will have better luck than I did! Good luck to you!