From: Avner Izhar (aizhar@ccbootcamp.com)
Date: Mon Oct 15 2007 - 11:47:51 ART
MGCP is strongly dependant on hostname and domain name, it is the piece of information that the call agent is using to make sure the registering gateway is an approved one.
Without it, any gateway could register to your call manager, if it has ip connectivity to it. Call manager has no knowledge of the gateway's ip address (before it registers), only about the gateway's hostname.
Practically, the hostname (or the fqdn if you configured a domain name) is part of the endpoint identifier and that is how the call manager to gateway matching is achieved.
-------------------------------------------
thanks,
Avner Izhar
CCIE#15999 (Voice), CCVP, CCSI# 31623
Technical Instructor
CCBOOTCAMP - A Cisco Sponsored Organization (SO)
Email: aizhar@ccbootcamp.com
Toll Free: 877-654-2243
Direct: +1-702-968-5100 = Outside the USA
FAX: +1-702-446-8012
YES! We take Cisco Learning Credits!
Register to win a free iPhone! http://www.ccbootcamp.com/iphone.html
-----Original Message-----
From: Radioactive Frog [mailto:pbhatkoti@gmail.com]
Sent: Monday, October 15, 2007 01:51
To: Avner Izhar
Cc: Cisco certification
Subject: Re: 2811 as a mgcp gateway in ccm4.1 registration issue [html-rem]
Very helpful Avner, thanks heaps.
Question:
I've observed another thing abt MGCP. Why does it depends on the router's
hostname?
If I change my router hostname, CCM immediately de-register the gateway.
On 10/15/07, Avner Izhar <aizhar@ccbootcamp.com> wrote:
>
> Hi,
>
> You might find some info in the traces included in this document:
>
> http://www.cisco.com/en/US/tech/tk1077/technologies_configuration_example09186a00801ad22f.shtml
>
> HTH,
>
> -------------------------------------------
> thanks,
> Avner Izhar
> CCIE#15999 (Voice), CCVP, CCSI# 31623
> Technical Instructor
> CCBOOTCAMP - A Cisco Sponsored Organization (SO)
> Email: aizhar@ccbootcamp.com
> Toll Free: 877-654-2243
> Direct: +1-702-968-5100 = Outside the USA
> FAX: +1-702-446-8012
> YES! We take Cisco Learning Credits!
> Register to win a free iPhone! http://www.ccbootcamp.com/iphone.html
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Radioactive Frog
> Sent: Sunday, October 14, 2007 01:31
> To: Haas, Brad
> Cc: Cisco certification; cisco@ccielab.com
> Subject: Re: 2811 as a mgcp gateway in ccm4.1 registration issue
> Importance: Low
>
> Just if someone would like to dig on this little more...
>
> Can anyone point me in the right direction re how to troubleshoot this
> problem?
> Where on CCM i should be looking for errors which tells me there is no
> cable
> plugged into ?
>
>
>
>
> On 10/14/07, Radioactive Frog <pbhatkoti@gmail.com> wrote:
> >
> > HI Hass,
> > I got it sorted out out. The trick was the vwic2-1mft-e1t1 physical
> > interface wasn't up. so i just used a RJ45 t1 loopback connector to
> spoof'd
> > the T1 port.
> >
> >
> > Product : Cisco 2811
> > Gateway : S0/SU0/DS1-0@br1.ccievoice.com
> > Device Protocol: Digital Access PRI
> > Registration: Registered with Cisco CallManager 10.1.200.21 <-----
> Hunky
> > dory
> > IP Address: 10.10.32.2
> >
> > br1#
> > br1#show controllers t1
> > T1 0/0/0 is up.
> > Applique type is Channelized T1
> > Cablelength is long gain36 0db
> > Description: ### BR1 PRI ###
> > No alarms detected.
> > alarm-trigger is not set
> > Soaking time: 3, Clearance time: 10
> > AIS State:Clear LOS State:Clear LOF State:Clear
> > Version info Firmware: 20040802, FPGA: 13, spm_count = 0
> > Framing is ESF, Line Code is B8ZS, Clock Source is Line.
> > CRC Threshold is 320. Reported from firmware is 320.
> > Data in current interval (434 seconds elapsed):
> > 4780 Line Code Violations, 2 Path Code Violations
> > 2 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
> > 2 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 421 Unavail
> > Secs
> > Total Data (last 10 15 minute intervals):
> > 0 Line Code Violations, 0 Path Code Violations,
> > 0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
> > 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 9000
> Unavail
> > Secs
> > br1#
> > br1#
> >
> > br1#
> > br1#
> > br1#show int s0/0/0:23
> > Serial0/0/0:23 is up, line protocol is up (spoofing)
> > Hardware is DSX1
> > MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,
> > reliability 255/255, txload 1/255, rxload 1/255
> > Encapsulation HDLC, loopback not set
> > Last input 00:00:02, output never, output hang never
> > Last clearing of "show interface" counters never
> > Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
> > Queueing strategy: weighted fair
> > Output queue: 0/1000/64/0 (size/max total/threshold/drops)
> > Conversations 0/1/256 (active/max active/max total)
> > Reserved Conversations 0/0 (allocated/max allocated)
> > Available Bandwidth 48 kilobits/sec
> > 5 minute input rate 0 bits/sec, 0 packets/sec
> > 5 minute output rate 0 bits/sec, 0 packets/sec
> > 56 packets input, 168 bytes, 0 no buffer
> > Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
> > 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
> > 56 packets output, 168 bytes, 0 underruns
> > 0 output errors, 0 collisions, 0 interface resets
> > 0 output buffer failures, 0 output buffers swapped out
> > 1 carrier transitions
> > Timeslot(s) Used:24, SCC: 0, Transmitter delay is 0 flags
> > br1#
> > br1#
> >
> >
> >
> >
> >
> > On 10/14/07, Radioactive Frog <pbhatkoti@gmail.com> wrote:
> > >
> > > Actually, at this stage, the E1 is not connected physically.
> > >
> > >
> > > br1#show isdn
> > > br1#show isdn status
> > > Global ISDN Switchtype = primary-ni
> > >
> > > %Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 0. Layer 3 output
> may
> > > not appl
> > > y
> > >
> > > ISDN Serial0/0/0:23 interface
> > > dsl 0, interface ISDN Switchtype = primary-ni
> > > L2 Protocol = Q.921 0x0000 L3 Protocol(s) = CCM MANAGER
> 0x0003
> > > Layer 1 Status:
> > > DEACTIVATED
> > > Layer 2 Status:
> > > TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
> > > Layer 3 Status:
> > > 0 Active Layer 3 Call(s)
> > > Active dsl 0 CCBs = 0
> > > The Free Channel Mask: 0x00000000
> > > Number of L2 Discards = 0, L2 Session ID = 0
> > > Total Allocated ISDN CCBs = 0
> > > br1#
> > > br1#
> > >
> > >
> > > On 10/14/07, Haas, Brad <bhaas@presidio.com > wrote:
> > > >
> > > > What Is your isdn status? Are multiple frames established?
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > > > Of
> > > > Radioactive Frog
> > > > Sent: Sunday, October 14, 2007 1:00 AM
> > > > To: Cisco certification; Cisco certification
> > > > Subject: 2811 as a mgcp gateway in ccm4.1 registration issue
> > > >
> > > > Registration: Not RegisteredHi guys,
> > > > Trying to add the mgcp gateway in CCM4.1 but having some issues.
> > > >
> > > > The router shows gateway is registered with ccm but CCM doesn't show
> > > > registration status. Any status?
> > > >
> > > > Any thought appreciated.
> > > >
> > > > --------------On CCM---this is the status-------------------------
> > > > Product : Cisco 2811
> > > > Gateway : S0/SU0/DS1-0@br1.ccievoice.com
> > > > Device Protocol: Digital Access PRI
> > > > Registration: Not Registered <---------------?????????????????
> > > > IP Address: 10.10.32.2
> > > >
> > > >
> > > > br1#
> > > > br1#show ccm-manager
> > > > MGCP Domain Name: br1.ccievoice.com
> > > > Priority Status Host
> > > > ============================================================
> > > > Primary Registered 10.1.200.21
> > > > <---------------Register
> > > > First Backup None
> > > > Second Backup None
> > > >
> > > > Current active Call Manager: 10.1.200.21
> > > > Backhaul/Redundant link port: 2428
> > > > Failover Interval: 30 seconds
> > > > Keepalive Interval: 15 seconds
> > > > Last keepalive sent: 03:57:03 UTC Oct 14 2007 (elapsed
> > > > time:
> > > > 00:00:12
> > > > )
> > > > Last MGCP traffic time: 03:57:03 UTC Oct 14 2007 (elapsed
> > > > time:
> > > > 00:00:12
> > > > )
> > > > Last failover time: None
> > > > Last switchback time: None
> > > > Switchback mode: Immediate
> > > > MGCP Fallback mode: Enabled/OFF
> > > > Last MGCP Fallback start time: 03:42:10 UTC Oct 14 2007
> > > > Last MGCP Fallback end time: 03:52:41 UTC Oct 14 2007
> > > > MGCP Download Tones: Disabled
> > > >
> > > > Backhaul Link info:
> > > > Link Protocol: TCP
> > > > Remote Port Number: 2428
> > > > Remote IP Address: 10.1.200.21
> > > > Current Link State: OPEN
> > > > Statistics:
> > > > Packets recvd: 0
> > > > Recv failures: 0
> > > > Packets xmitted: 0
> > > > Xmit failures: 0
> > > > PRI Ports being backhauled:
> > > > Slot 0, port 0
> > > > FAX mode: disable
> > > > Configuration Error History:
> > > > br1#
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > show run of br1:
> > > >
> > > >
> > > > br1#
> > > > br1#
> > > > br1#
> > > > br1#
> > > > br1#
> > > > br1#
> > > > br1#sh run
> > > > Building configuration...
> > > >
> > > > Current configuration : 4287 bytes
> > > > !
> > > > version 12.4
> > > > service timestamps debug datetime msec
> > > > service timestamps log datetime msec
> > > > no service password-encryption
> > > > !
> > > > hostname br1
> > > > !
> > > > boot-start-marker
> > > > boot-end-marker
> > > > !
> > > > card type t1 0 0
> > > > enable password cisco
> > > > !
> > > > no aaa new-model
> > > > !
> > > > resource policy
> > > > !
> > > > network-clock-participate wic 0
> > > > ip subnet-zero
> > > > !
> > > > !
> > > > ip cef
> > > > !
> > > > !
> > > > no ip domain lookup
> > > > ip domain name ccievoice.com
> > > > ip host HO 10.10.32.1
> > > > ip host BR1 10.10.32.2
> > > > ip host BR2 10.10.32.3
> > > > ip host HQSW 10.1.200.100
> > > > frame-relay switching
> > > > isdn switch-type primary-ni
> > > > !
> > > > voice-card 0
> > > > no dspfarm
> > > > !
> > > > !
> > > > !
> > > > !
> > > > !
> > > > !
> > > > !
> > > > !
> > > > !
> > > > !
> > > > !
> > > > !
> > > > !
> > > > !
> > > > controller T1 0/0/0
> > > > framing esf
> > > > linecode b8zs
> > > > pri-group timeslots 1-3,24 service mgcp
> > > > description ### BR1 PRI ###
> > > > !
> > > > !
> > > > !
> > > > !
> > > > interface Loopback0
> > > > ip address 10.10.32.2 255.255.255.255
> > > > ip ospf network point-to-point
> > > > !
> > > > interface FastEthernet0/0
> > > > no ip address
> > > > ip helper-address 10.1.200.21
> > > > shutdown
> > > > duplex auto
> > > > speed auto
> > > > !
> > > > interface FastEthernet0/1
> > > > no ip address
> > > > shutdown
> > > > duplex auto
> > > > speed auto
> > > > !
> > > > interface Serial0/0/0:23
> > > > no ip address
> > > > encapsulation hdlc
> > > > no logging event link-status
> > > > isdn switch-type primary-ni
> > > > isdn incoming-voice voice
> > > > isdn bind-l3 ccm-manager
> > > > isdn bchan-number-order ascending
> > > > no cdp enable
> > > > !
> > > > interface Serial0/1/0
> > > > no ip address
> > > > encapsulation frame-relay IETF
> > > > ip ospf mtu-ignore
> > > > no fair-queue
> > > > clock rate 128000
> > > > frame-relay lmi-type ansi
> > > > frame-relay intf-type dce
> > > > !
> > > > interface Serial0/1/0.1 point-to-point
> > > > ip address 10.10.33.2 255.255.255.128
> > > > ip ospf mtu-ignore
> > > > no keepalive
> > > > frame-relay interface-dlci 101
> > > > !
> > > > interface FastEthernet1/0
> > > > description --- l3 interfaces for others --
> > > > no switchport
> > > > no ip address
> > > > !
> > > > interface FastEthernet1/1
> > > > description ### BR1 phone1 ###
> > > > switchport trunk native vlan 20
> > > > switchport mode trunk
> > > > switchport voice vlan 120
> > > > spanning-tree portfast
> > > > !
> > > > interface FastEthernet1/2
> > > > description ### BR1 phone2 ###
> > > > switchport trunk native vlan 20
> > > > switchport mode trunk
> > > > switchport voice vlan 120
> > > > !
> > > > interface FastEthernet1/3
> > > > description #### not in use so shutdown ###
> > > > !
> > > > interface FastEthernet1/4
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/5
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/6
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/7
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/8
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/9
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/10
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/11
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/12
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/13
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/14
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface FastEthernet1/15
> > > > description #### not in use so shutdown ###
> > > > shutdown
> > > > !
> > > > interface Vlan1
> > > > no ip address
> > > > !
> > > > interface Vlan20
> > > > description ### Data VLAN ###
> > > > ip address 10.20.0.1 255.255.255.0
> > > > ip helper-address 10.1.200.21
> > > > !
> > > > interface Vlan120
> > > > description ### Voice VLAN ###
> > > > ip address 10.120.0.1 255.255.255.0
> > > > ip helper-address 10.1.200.21
> > > > !
> > > > router ospf 1
> > > > log-adjacency-changes
> > > > network 10.10.32.2 0.0.0.0 area 0
> > > > network 10.10.33.0 0.0.0.127 area 0
> > > > network 10.20.0.0 0.0.0.255 area 0
> > > > network 10.120.0.0 0.0.0.255 area 0
> > > > !
> > > > ip classless
> > > > !
> > > > no ip http server
> > > > !
> > > > !
> > > > !
> > > > !
> > > > control-plane
> > > > !
> > > > !
> > > > !
> > > > voice-port 0/0/0:23
> > > > !
> > > > ccm-manager switchback immediate
> > > > ccm-manager fallback-mgcp
> > > > ccm-manager mgcp
> > > > no ccm-manager fax protocol cisco
> > > > ccm-manager music-on-hold
> > > > !
> > > > mgcp
> > > > mgcp call-agent 10.1.200.21 service-type mgcp version 0.1
> > > > mgcp dtmf-relay voip codec all mode cisco
> > > > mgcp modem passthrough voip mode nse
> > > > mgcp ip qos dscp cs3 signaling
> > > > mgcp bind control source-interface Loopback0
> > > > mgcp bind media source-interface Loopback0
> > > > !
> > > > mgcp profile default
> > > > source interface Loopback0
> > > > !
> > > > !
> > > > !
> > > > dial-peer voice 99 pots
> > > > service mgcpapp
> > > > incoming called-numeber
> > > > port 0/0/0:23
> > > >
> > > > line con 0
> > > > exec-timeout 0 0
> > > > line aux 0
> > > > line vty 0 4
> > > > exec-timeout 0 0
> > > > password cisco
> > > > login
> > > > !
> > > > scheduler allocate 20000 1000
> > > > !
> > > > end
> > > >
> > > > br1#
> > > > br1#
> > > > br1#
> > > > br1#
> > > >
> > > >
> > > >
> _______________________________________________________________________
> > > > Subscription information may be found at:
> > > > http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
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>
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