mgcpFwKeepAliveEnable

Enable/disable the Firewall keep-alive timeout mechanism.
          
When Media Gateways (MGW) controlled with the MGCP protocol are
deployed behind firewalls, the Media Gateway Controller (MGC) should
be allowed to control the MGW. To keep the firewall and NAT connection
alive, signalling packets must be exchanged between the MGW and MGC
within a specified period of time called the keep-alive timeout.
If no packets are exchanged for the specified period, then the
connection will be closed.
          
To keep the connection alive, the gateway uses the RSIP
RM : x-keepalive command to indicate that the gateway inactivity
timer has timed-out.  The RSIP keep-alive command is sent from
a provisionable virtual endpoint.
          
The RSIP keep-alive command does not require any 200 OK from the
Media Gateway controler (MGC).  The RSIP keep-alive is launched
immediately after the activation of the MGCP stack. It is then
possible to see RSIP keep-alive command preceeding the initial
RSIP restart if the registration initial delay period is larger
than the inactivity timer.  Also, the RSIP keep-alive is not
submitted to the disconnection procedure.
          
Note that voice packets cannot be used to keep the connection opened
because they are transmitted on another channel.

MIB

MX-MGCP-MIB

OID

.1.3.6.1.4.1.4935.20.1.1.1.46.5

Type

scalar

Access

readwrite

Status

current

Parent

mgcpFirewall