 | Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
You can configure the parameters that a VPG uses to detect and report latch deadlocks.
Detection—The VPG uses an inactivity timer to detect a latch deadlock or other media inactivity on a gate. The timer tracks the receipt of media packets during a specified time interval.
When a latching signal exists for a termination, the PG places the termination in a Drop state. All incoming traffic to the relevant gate egressing the termination is dropped until the first IP traffic datagram enters the termination (ingress). At this point the remote descriptor on the termination and egress gate is updated to forward traffic to the newly acquired source. The latch signal is removed from the gate when the PGC receives an H.248 Notify message containing the newly acquired IP address. Deadlock occurs when an error occurs regarding the source IP address and port that prevents the endpoint from returning data to the source address.
The detection process is activated in one of the following ways:
The inactivity timer tracks the receipt of media packets during a specified interval of time (inactivity duration). If no media packets are received during this time interval, the VPG reports the inactivity to the PGC.
Reporting—Reporting of the media inactivity occurs in one of the following ways:
| Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |