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Table of Contents

Troubleshooting Tips

Troubleshooting Tips

This chapter covers problems you may encounter when configuring, operating and managing the Cisco IP/VC 3520 Video Gateway and the embedded gatekeeper. Suggested actions you can use to solve the problems are provided. It covers the following topics:

LED Indications

This section identifies problems that the LEDs can indicate and suggests possible solutions.

The Power LED does not light
The Link LED does not light

Problems Using the Cisco IP/VC 3520 Video Gateway

This section identifies problems that can occur using the Video Gateway and suggests possible solutions. Problem topics include:

Problems Seen While Using the Cisco IP/VC Configuration Utility

This section identifies problems that can encounter using configuration utility and suggests possible solutions.

The Video Gateway's IP address does not appear in the Select Unit list box
An Exception error appears when you try to access the Video Gateway
To ensure that the Video Gateway can be accessed on the network, ping the Video Gateway's IP address from a computer attached to the network. You can use the DOS feature to ping. Start DOS and type ping Video Gateway's IP address and press Enter.
If the Video Gateway is connected to the network, the message Reply from appears.
If the message Request timeout appears, the Video Gateway was not found on the network. The LAN cable may be faulty. Replace the LAN cable and try pinging again.
You cannot upload a file to the Video Gateway using the Software Upload Utility

Problems Seen While Using the Video Gateway's Serial Port

You can use the Video Gateway's serial port for configuration and diagnostics.

You cannot access the Video Gateway through the serial port

To verify communication, perform the following steps:

Step 1 Start the terminal emulation software installed on the computer you have connected to the Video Gateway's serial port. A prompt displays.

Step 2 Press Enter and the prompt moves down a line. This indicates that you have a connection.

Step 3 Restart the Cisco IP/VC 3520 Video Gateway. A log of the start up events display on the computer monitor.

Step 4 If nothing displays, check the cable connection between the Video Gateway and the computer. You must use the Terminal/Modem cable or a null cable. Contact Cisco Technical Support for assistance.

You cannot access the Video Gateway from a remote terminal connected to the Video Gateway via modems

Problems Seen While Making Calls

This section identifies problems that users can have making calls through the
Video Gateway and suggests possible solutions.

Users are unable to make LAN to WAN data calls

Try the following if a user is unable to place a data call to a remote site.

To view the dialing prefix and call parameters, perform the following steps:

Step 1 Click Start>Programs>Cisco IPVC Tools>Configuration>Cisco IPVC Configuration Utility.

Step 2 Select the Video Gateway on which you want to verify the information on in the Select Unit dialog box.

Step 3 Go to the Configuration Source dialog box and select Current in the Source text box.

Step 4 Click Unit Setup and Next.

Step 5 Go to the Services Definition Table. Make sure that Call Type is set to H.320.

Users are unable to make voice calls

Try the following if a user is unable to place a voice call to a remote site.

Step 1 Click Start>Programs>Cisco IPVC Tools>Configuration>Cisco IPVC Configuration Utility.

Step 2 Select the Video Gateway on which you want to verify the information on in the Select Unit dialog box.

Step 3 Go to the Configuration Source dialog box and select Current in the Source text box.

Step 4 Click Unit Setup and Next.

Step 5 Go to the Services Definition Table. Make sure that Call Type is set to Voice.

Problems Seen While Receiving Calls

This section identifies problems users can receiving calls through the Video Gateway and suggests possible solutions.

Users are unable to receive incoming calls through the WAN ports
If you enabled the Default Extension, you must enter values in the Default Extension and Phone number fields. See "Setting WAN Port Parameters" in the "Configuring the Video Gateway" chapter.
Caution Unregister All terminates all ongoing calls.
The MSN dialing method is enabled, but direct dial calls are not reaching the intended endpoint
The TCS4 dialing method is used, but TCS4 calls are not reaching the requested terminal
If you are using the embedded gatekeeper, check the endpoint's registration in the
Zone Definition Table.

Note Some endpoints such as Microsoft NetMeeting version 2.x do not support the RAS protocol and cannot dynamically register with the embedded gatekeeper. In this case you must predefine the endpoint in the gatekeeper's Zone Definition table and define it as Online Always.
The IVR does not respond to incoming calls

WAN terminals must support DTMF to use Cisco IVR. If the dialing terminal does not support DTMF tones, IVR forwards the call to the IVR operator if one is defined. Otherwise, the call is forwarded to an enabled and defined Default Extension.

When the volume of the DTMF tones generated by the dialing endpoint is low, the IVR may not recognize one or more of the tones. If the Video Gateway does not find an endpoint with a phone number corresponding to the tones dialed, the IVR treats this string as an incorrect number and disconnects the call.

Problems Using the Embedded Gatekeeper

This section identifies problems that can occur while using the embedded gatekeeper and suggests solutions.

User is not able to use a call service
Users are unable to make LAN to LAN calls
If an endpoint disconnects from the network inappropriately, its registration may appear until the gatekeeper issues a time out. The Video Gateway reregisters when it logs back onto the network.

Note Some endpoints such as Microsoft NetMeeting version 2.x do not support the RAS protocol and cannot register dynamically with the embedded gatekeeper. In this case you have to predefine the endpoint in the gatekeeper's Zone Definition table and define it as "Online Always."
Users from other zones cannot contact users registered with the embedded gatekeeper

To assign a zone prefix, perform the following steps:

Step 1 Click Start>Programs>Cisco IPVC Tools>Configuration>Cisco IPVC Configuration Utility.

Step 2 Select the Video Gateway on which you want to verify the information on in the Select Unit dialog box.

Step 3 Go to the Configuration Source dialog box and select Gatekeeper.

Step 4 Click Service Definition.

Step 5 Click Zone prefix 1 to highlight. This predefined service allows you to assign the embedded gatekeeper a zone prefix.

Step 6 Click Edit. The Service Definitions dialog box appears.

Step 7 In the Prefix text box, enter the dialing prefix you want to assign to the gatekeeper.

Step 8 Enable Public to allow endpoints from outside the zone to use the prefix.

Step 9 Click OK.

Monitoring the Video Gateway

You can monitor the Video Gateway using the Diagnostics utility. The Diagnostics utility is a series of diagnostic menus that allow you to view information about:

Accessing the Diagnostic Menus

The diagnostic menus are accessed through terminal emulator software running on a PC connected to the Video Gateway serial port. You can connect the PC directly to the Video Gateway serial port or indirectly via modems. You must use the Terminal/Modem cable or a null modem cable the PC to the Video Gateway's serial port. See "Serial Connector and Null Modem Cable" in the "Cable Connectors and Pinouts" appendix for null modem pinout information.

Prerequisites

Before you begin decide whether you will be accessing the diagnostic utility locally or from a remote location.

If you are accessing the diagnostic utility locally, verify that:

If you are accessing the diagnostic menus from a remote location, verify that:

Creating a Dialup Connection to the Video Gateway

Refer to your terminal emulator online help or documentation for instructions on creating a new dialup connection.

Create a new dialup connection with the following parameters:

Running the Diagnostics Utility

To run the online diagnostics utility, perform the following steps:

Step 1 Run the terminal emulator. If the Video Gateway is at a remote site, connect to the Video Gateway with the dialup connection you created. Wait for the prompt.

Step 2 Type diag at the prompt.

Step 3 Type admin when prompted for the User Name.

Step 4 Type the Video Gateway's current password when prompted for the Password. cisco is the default password.


Note You can enter incorrect user names and passwords five times before the utility aborts.

The Diagnostic Main menu is displayed.

********************************************************
Remote Diagnostic Main Menu 
********************************************************
1.Exit Remote Diagnostics Session 
2.Gateway Ports Status
3.Gateway Ports Configuration
4.Gateway Call Status
5.Viewing the Gatekeeper Menu
6.Get Versions
********************************************************

Accessing the Diagnostics Menus

To access a Diagnostics menus from the Main menu, type the menu option number that you want and press Enter.

Viewing the Video Gateway Ports Status

To view the Video Gateway Ports status, type 2 at the Remote Diagnostic Main menu. The Gateway Ports Status menu is displayed.

********************************************************
Gateway Ports Status
********************************************************
Type number associated with one of the following topics
1. Back to Previous Menu
2. LAN Ports Status
3. WAN Ports Status
********************************************************

Viewing LAN Ports Status

To view the LAN Ports status, type 2 at the Gateway Ports Status menu.

********************************************************
LAN Ports Status
********************************************************
 port 0: enabled
 port 1: disabled
 port 2: disabled
 port 3: disabled
********************************************************

Port 0 in the LAN Ports Status list represents the Video Gateway's LAN port. The port status may be Enabled or Disabled. All other ports are Disabled. The Gateway Ports Status menu is displayed allowing you to choose another option.

Viewing WAN Ports Status

To view the WAN Ports status, type 3 at the Gateway Ports Status menu.

********************************************************
WAN Ports Status
********************************************************
 port 0: enabled
 port 1: enabled
 port 2: enabled
 port 3: enabled
********************************************************

The status of each of the four WAN ports is displayed. The status of the ports may be either Enabled or Disabled. The Gateway Ports Status is displayed allowing you to choose another option.

Viewing the Video Gateway Ports Configuration

To view the Video Gateway ports configuration, type 3 at the Remote Diagnostic Main menu. The Gateway Ports Configuration is displayed.

********************************************************
Gateway Ports Configuration
********************************************************
Type number associated with one of the following topics
1. Back to Previous Menu
2. LAN Ports Configuration
3. WAN Ports Configuration
********************************************************

Viewing LAN Ports Configuration

To view the LAN ports configuration information, type 2 at the Gateway Ports Configuration menu.

********************************************************
LAN Ports Configuration
********************************************************
GATEWAY Default Router IP: 0.0.0.0
********************************************************
Port IP address             IP Mask           Status
********************************************************
 0   192.114.36.71        255.255.255.0        enabled   
 1   0.0.0.0              255.255.255.0        disable   
 2   0.0.0.0              255.255.255.0        disable   
 3   0.0.0.0              255.255.255.0        disable   
********************************************************

The following information is displayed for the LAN ports:

Gateway Default Router IP---the IP address of the Video Gateway default router.

Port Number---the number of the LAN port.

IP Address---the IP address of this LAN port.

IP Mask---defines the portion of the IP address that is used for subnetwork definitions.

Status---the status of the LAN port. The status may be either Enabled or Disabled.

Viewing WAN Ports Configuration

To view the WAN ports configuration information, type 3 at the Gateway Ports Configuration menu. The WAN Ports Configuration menu is displayed.

********************************************************
WAN Ports Configuration
********************************************************
Type number associated with one of the following topics
1. Back to previous Menu
2. Configuration status of all WAN ports
3. Configuration status per single WAN port
4. Back to main Menu
********************************************************

Viewing the Configuration Status of All WAN Ports

To view the configuration status of all the WAN ports, type 2 at the WAN Ports Configuration menu.

********************************************************
Configuration status of all WAN ports
********************************************************
Port DTE/DCE         Pays STD          Status
********************************************************
 1    DTE              BRI-ISDN         enabled         
 2    DTE              BRI-ISDN         enabled         
 3    DTE              V35              enabled         
 4    DTE              V35              enabled 
********************************************************

The following information is displayed for the WAN ports:

Port Number---the number of the LAN port.

NET/USER---displays whether the WAN line is connected to a DTE or DCE module.

Phys. STD---displays the line type connected to this WAN port.

Status---the status of the LAN port. The status may be either Enabled or Disabled.

Viewing the Configuration Status Per Single WAN Port

To view the configuration status of a single WAN port, type 3 at the WAN Ports Configuration menu. Configuration information for WAN ports may differ depending on the type of port. Following is one example of a single WAN port configuration screen:

********************************************************
Configuration status per single WAN port
********************************************************
 Port Num: 1
 Port Status: enabled
 Physical Interface: BRI-ISDN
 Signaling Protocol: 5ESS_PTP
********************************************************
SPID & Directory Number
********************************************************
SPID 1: 8007               SPID 2: 7007                
********************************************************
 Dir1: 8007001             Dir2: 7007001                
 Dir1: 8007002             Dir2:                 
 Dir1:                     Dir2:                 
 Dir1:                     Dir2:                 
 Dir1:                     Dir2:                 
 Dir1:                     Dir2:                 
 Dir1:                     Dir2:                 
 Dir1:                     Dir2:          
********************************************************

The following information can be displayed for the WAN port:

Port Number---The number of the LAN port.

Port Status---the status may be either Enabled or Disabled.

Physical Interface---type of physical interface used for the port.

Signaling Protocol---the ISDN signaling protocol.

SPID---the Service Provider Identification for the ISDN connection (USA only).

Directory Number---you can define up to eight directory numbers for each SPID.

To return to the WAN Ports Configuration menu, type e.

Viewing the Video Gateway Calls Status

To view the Gateway Calls Status menu, type 4 at the Remote Diagnostic Main menu.

********************************************************
GATEWAY Calls Status
********************************************************
 Call Num:    1
 Call Type:   VIDEO-CONFERENCE CALL
 Source:      q
 Destination: 8013,
 Duration:    0:5:12
********************************************************

The following information is displayed for the Video Gateway calls:

Call Number---the number of the call.

Call Type---the type of the call.

Source---where the call originated.

Destination---the call destination phone number.

Duration---the duration of the call (in seconds).

To view the next call, type n. When the information for all the calls has been displayed, the total number of calls is displayed.

To view the previous call, type p.

To return to the Remote Diagnostic Main Menu, type e.

Viewing the Gatekeeper Menu

To view the Gatekeeper menu, type 5 at the Remote Diagnostics Main menu.

********************************************************
Gatekeeper Menu
********************************************************
1.Back to Previous Menu
2.List Endpoints
3.Details of Specific Endpoint
4.List Call
5.Details of Specific Call
6.List Neighbors
7.List Zone Parameters
********************************************************

Viewing the List of Endpoints

To view the list of endpoints registered to the Gatekeeper, type 2 at the Gatekeeper menu.

********************************************************
Registration Table
********************************************************
No Type    RAS Add.            Call Signaling     Phone    Terminal
                               Add.                        ID.
-- ----    --------            ------------------ -----    --------
0 terminal 192.114.36.64:1052 192.114.36.64:1720 8006
1 terminal 192.114.36.67:0     192.114.36.67:1720 800
2 terminal 192.114.36.77:1719 192.114.36.77:1720 6489244 q
3 gateway 192.114.36.71:1024 192.114.36.71:1820 1231193571008
4 terminal 192.114.36.68:1700 192.114.36.68:1720 8029     QA-Tel
5 terminal 192.114.37.239:1025 192.114.37.239:1720 1239
********************************************************

The following information is displayed for the endpoints:

Number---the number of the endpoint.

Type---the type of the endpoint.

RAS Add.---the Registration Admission Status (RAS) address for this terminal. The RAS address can either be a fixed or dynamic IP address.

Call Signaling Add.---the IP address where the endpoint gets call signaling messages. Usually, a terminal has one address, while a Video Gateway has a number of addresses corresponding to its different LAN ports.

Phone---the destination phone number of the endpoint on the IP network.

Terminal ID.---the ID which this endpoint has on the IP network.

Viewing Details of an Endpoint

To view details of a specific endpoint, perform the following steps:

Step 1 Type 3 at the Gatekeeper menu. You are prompted for the endpoint number.

Step 2 Type in the endpoint number and press Enter.

********************************************************
Registration:1 Type: 14
********************************************************
Allowed Services:
71,,72,,61,,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N
Supported Services:
N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N
Bandwidth Usage: 0
Endpoint Type: terminal
Forward Type: None 
E164 Forward:
H323Id Forward:
Call Signaling Address:
    192.114.36.67:1720, len:0 - type:No Route - rec:33-d
RAS Address:
    192.114.36.67:0, len:0 - type:No Route - rec:27-s-d
Phone:
    800-len:3 -type:Phone -rec:12-s-d
Terminal ID:
Endpoint Identifier:
********************************************************

The following information is displayed for the endpoint:

Allowed Services---displays the services allowed for the endpoint.

Supported Services---displays the supported services for the current endpoint.

Bandwidth Usage---only displays the current call bandwidth consumption in the zone.

Endpoint Type---the type of the endpoint.

Forward Type---the type of forwarding used by the endpoint.

Forward---the alias forwarding information.

Call Signaling Address---the IP address to which the endpoint gets call signaling messages. Usually, a terminal has one address, while a Video Gateway has a number of addresses corresponding to its different LAN ports.

RAS Add.---the registration admission status (RAS) address for this terminal. The RAS address can either be a fixed or dynamic IP address.

Phone---the destination phone number of the endpoint on the IP network.

Terminal ID.---the ID of this endpoint on the IP network.

Endpoint Identifier---the identifier assigned to the endpoint for use by embedded gatekeeper.

Viewing the List of Calls

To view details of calls, type 4 at the Gatekeeper menu.


Note If there are no calls, a "no calls" message displays.
********************************************************
Calls Table
********************************************************
No.From               To                 State    Service
-- ----               --                 -----    -------
0 192.114.36.77:1051 192.114.36.71:1820,71,8013, CAL_CONNECT 71,
********************************************************

The following information is displayed for the calls:

No.---The call number.

From---The IP address:port number of the origin of the call.

To---The IP address:port number of the destination of the call.

State---The state of the call.

Service---The service that the call is using.

Viewing the Details of a Call

To view the details of a call, perform the following steps:

Step 1 Type 5 at the Gatekeeper menu. You are prompted for a call number.

Step 2 Type the call number and press Enter.

********************************************************
Call 1 
********************************************************
Call is to service: 71,
Call is in state: CAL_CONNECT
From 192.114.36.77:1051   q 1770 6489244
to   192.114.36.71:1820   71,8013,
CID Sum:1355. CID:0x5634343434ef020020a1056dc928b060
Information from ARQ. h245-channel address 192.114.36.71:1037
Information of origin
Reg:2   Bandwidth:768000 Stack:548238348  ARQ:548238288  State:Connect Mode:CallSetupConn
Information of destination
Reg:2   Bandwidth:768000 Stack:548238288  ARQ:548238408  State Connect Mode CallSetupConn
********************************************************

The following information is displayed for the requested call:

Service---the service that the call is using.

State---the state of the call.

From---the IP address:port number of the origin of the call.

To---the IP address:port number of the destination of the call.

CID---the call identification information.

ARQ h245-channel---the H.245 ID for specific call used by H.323 Stack.

Reg.---the registration number of the endpoint in the embedded gatekeeper's endpoint table.

Bandwidth---displays the current bandwidth consumption in the zone (from calls and not from other applications).

Stack---the H.323 Stack call ID.

ARQ---the RAS Call ID.

State---the call state: connect, disconnect or dialing.

Mode---the call state mode sub type for call states.

Viewing a List of Neighbors

To view a list of neighbor gatekeepers, type 6 at the Gatekeeper menu.

********************************************************
Neighbors Table
********************************************************
 No. name            ip                   distance
 --- ----            --                   --------
********************************************************

The following information is displayed for the list of neighbors:

No.---the number of the neighbor.

Name---the name of the neighbor.

IP---the IP address of the neighbor.

Distance---the logical distance between the neighbor and the embedded gatekeeper.

Viewing Zone Parameters

To view the list of zone parameters, type 7 at the Gatekeeper menu.

********************************************************
Zone Properties 
********************************************************
___________________FLAGS
GK                                       : on
Accept Registrations                     : on
Accept Calls                             : on
Everyone Can Register                    : on
Alias Assignment                         : on
Call Indirect Mode                       : on
Dynamic IP Environment                   : off
 
___________________CAPABILITIES and USAGE
Allowed Calls                            : 25
Ongoing Calls                            : 1
Online Endpoints                         : 6
Allowed Total Bandwidth (Kbps)           : 1000000
Allowed Bandwidth Per Terminal (Kbps)    : 1000000
Current Bandwidth Usage (Kbps)           : 768
********************************************************

The following information is displayed for the list of zone properties:

Flags

GK---when "on," a embedded gatekeeper is enabled.

Accept Registrations---when "on," the embedded gatekeeper accepts new dynamic registrations.

Accept Calls---when "on," the embedded gatekeeper accepts new calls.

Everyone Can Register---when "on," endpoints not defined in the Zone Definition Table can register with the embedded gatekeeper.

Alias Assignment---when "on," the embedded gatekeeper allocates telephone numbers based on the predefined information.

Call Indirect Mode---when "on," routes all calls through the embedded gatekeeper, according to the H.323 indirect call mode.

Dynamic IP Environment--- when "on," the embedded gatekeeper uses Terminal ID in Zone Definition to identify the terminal.

Capabilities and Usage

Allowed Calls---the maximum number of simultaneous calls allowed.

Ongoing Calls---the number of calls currently being made.

Online Endpoints---the number of endpoints currently online.

Allowed Total Bandwidth---the amount of bandwidth that can be occupied by videoconferencing at any given time.

Allowed Bandwidth per Terminal---the maximum amount of bandwidth allowed per terminal. A terminal is not allowed to consume more bandwidth then the value specified here. This applies to terminals only and not to other endpoints, such as Video Gateways or MCUs.

Current Bandwidth Usage---the amount of bandwidth currently used for videoconferencing.

Viewing the Current Software Version

To view the current version of the Video Gateway software, type 6 at the Remote Diagnostics Main menu. The Video Gateway software version is displayed.

********************************************************
 Gateway s/w version:    1.3
********************************************************


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Posted: Thu Nov 11 20:42:05 PST 1999
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