User guide

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Cisco Media Gateway Manager 5.0 User Guide
OL-5461-02
Chapter 5 Maintaining an Efficient Network
Which Ports Are Reserved in Cisco MGM?
Step 3 Choose Redundancy Info from the Category drop-down arrow to display the redundancy status for the
node.
Step 4 Select the card from the list of redundant cards.
Step 5 Click Details to display the Redundancy Configuration window. See Figure 5-5.
Step 6 Enter the slot number of the Secondary module in the redundant configuration in the Secondary Slot
Num field.
Step 7 Choose one of the following redundancy options for the Primary module from the Redundancy Type
drop-down arrow:
• yCable—specifies a 1:1 (y cable) redundancy configuration for a yCable. For the yCable option,
only one module is used and acts as the backup for the other.
• oneToN—specifies a a 1:N redundancy configuration for oneToN. For the oneToN option, only one
module (secondary) is used and acts as the backup for other primary modules.
Step 8 Click Apply to modify the card for redundancy.
5.6 Which Ports Are Reserved in Cisco MGM?
The Cisco MGM server communicates with the managed network via the data communication network
(DCN) using the CORBA protocol.
Note If there a firewall between the Cisco MGM server and the NE, a static CORBA port needs to be assigned
manually. This port can then be opened on the firewall.
Caution Reserved ports are required for the Cisco MGM server to communicate with NEs, the GUI, or other
northbound gateways. Care must be taken when changing any reserved port in Cisco MGM, as a change
could mean that communication is lost.
This section includes the following information:
• 5.6.1 Client-Server Communication Protocols
• 5.6.2 Ports between the Cisco MGM Server and Clients
• 5.6.3 Ports between the Cisco MGM Server and MGX Switches
• 5.6.4 Changing the Cisco MGM Server Port
5.6.1 Client-Server Communication Protocols
Cisco MGM uses the following protocols for client-server communication:
• CORBA
• JMOCO (Cisco Proprietary TCP/IP-based request/response protocol)
• SSH or Telnet
• Java Database Connectivity (JDBC)