Verifying MGCP ALG Configurations
Verifying MGCP ALGs
Purpose
Display MGCP ALG verification options.
Action
From the CLI, enter the show security alg mgcp ? command.
user@host> show security alg mgcp ?Possible completions: calls Show MGCP calls counters Show MGCP counters endpoints Show MGCP endpoints
Meaning
The output shows a list of all MGCP verification parameters. Verify the following information:
- All MGCP calls
- Counters for all MGCP calls
- Information about all MGCP endpoints
Verifying MGCP ALG Calls
Purpose
Display information about active MGCP calls.
Action
From the J-Web interface, select Monitor>ALGs>MGCP>Calls. Alternatively, from the CLI, enter the show security alg mgcp calls command.
user@host> show security alg mgcp callsEndpoint@GW Zone Call ID RM Group
d001@101.50.10.1 Trust 10d55b81140e0f76 512
Connection Id> 0
Local SDP> o: 101.50.10.1 x_o: 101.50.10.1
c: 101.50.10.1/32206 x_c: 101.50.10.1/32206
Remote SDP> c: 3.3.3.5/16928 x_c: 3.3.3.5/16928
Endpoint@GW Zone Call ID RM Group
d001@3.3.3.5 Untrust 3a104e9b41a7c4c9 511
Connection Id> 0
Local SDP> o: 3.3.3.5 x_o: 3.3.3.5
c: 3.3.3.5/16928 x_c: 3.3.3.5/16928
Remote SDP> c: 101.50.10.1/32206 x_c: 101.50.10.1/32206
Meaning
The output displays information about all MGCP calls. Verify the following information:
- Endpoint
- Zone
- Call identifier
- Resource Manager group
Verifying MGCP ALG Endpoints
Purpose
Display information about MGCP endpoints.
Action
From the J-Web interface, select Monitor>ALGs>MGCP>Endpoints. Alternatively, from the CLI, enter the show security alg mgcp endpoints command.
user@host> show security alg mgcp endpointsGateway: 101.50.10.1 Zone: Trust IP: 101.50.10.1 -> 101.50.10.1 Endpoint Trans # Call # Notified Entity d001 1 1 0.0.0.0/0->0.0.0.0/0 Gateway: 3.3.3.5 Zone: Untrust IP: 3.3.3.5 -> 3.3.3.5 Endpoint Trans # Call # Notified Entity d001 1 1 0.0.0.0/0->0.0.0.0/0
Meaning
The output displays information about all MGCP endpoints. Verify the following information:
- Gateway IP address and zone of both endpoints
- Endpoint identifier, transaction number, call number, and notified entity for each gateway
Verifying MGCP ALG Counters
Purpose
Display information about MGCP counters.
Action
From the J-Web interface, select Monitor ALGs>MGCP>Counters. Alternatively, from the CLI, enter the show security alg mgcp counters command.
user@host> show security alg mgcp countersMGCP counters summary: Packets received :284 Packets dropped :0 Message received :284 Number of connections :4 Number of active connections :3 Number of calls :4 Number of active calls :3 Number of transactions :121 Number of active transactions:52 Number of re-transmission :68 MGCP Error Counters: Unknown-method :0 Decoding error :0 Transaction error :0 Call error :0 Connection error :0 Connection flood drop :0 Message flood drop :0 IP resolve error :0 NAT error :0 Resource manager error :0 MGCP Packet Counters: CRCX :4 MDCX :9 DLCX :2 AUEP :1 AUCX :0 NTFY :43 RSIP :79 EPCF :0 RQNT :51 000-199 :0 200-299 :95 300-999 :0
Meaning
The output displays information about all MGCP counters. Verify the following information:
- Summary of MGCP counters
- MGCP error counters
- MGCP packet counters
Related Topics
- JUNOS Software Feature Support Reference for SRX Series and J Series Devices
- MGCP ALG Configuration Overview
- Example: Configuring Media Gateways in Subscriber Homes Using MGCP ALGs (CLI)
- Example: Configuring Three-Zone ISP-Hosted Service Using MGCP ALGs and NAT (CLI)