Monitoring Statistics for PGCP

Purpose

Display statistics for H.248 messages, protocol errors, and commands using the show services pgcp statistics gateway gateway-name command.

Action

Packet gateway configuration:
  Name                                     :  vpg-1
  IP address                               :  3.0.0.2
  Port                                     :  2944
  Status                                   :  Connected 

H.248 statistics:
    Messages received          :  303852
    Messages sent              :  303726
    Protocol errors            :  329

Command Requests                sent/wildcards             received/wildcards
    Add                              0/0                      207557/0
    Modify                           0/0                      206955/0
    Notify                          33/0                           0/0
    ServiceChange                  330/0                           0/0
    Subtract                         0/0                      191195/0

Command Responses               received/error                 sent/error
    Add                              0/0                      207557/378
    Modify                           0/0                      206898/110
    Notify                          33/0                           0/0
    ServiceChange                    1/0                           0/0
    Subtract                         0/0                      191073/503

Meaning

There is no relationship between the messages received and sent counters and the command request and response counters. The message counters describe the network activity and contain all H.248 messages. Each message can contain one or more commands, and commands that contain wildcards can be interpreted as more than one command.

Command Requests

The command requests section lists the number of command requests that the VPG sent and received. It lists the number of requests for each type of command. Command requests are counted regardless of whether the commands were successfully accomplished. Command requests are not counted in the following cases:

• The command was not executed because of a previous error.
• The command was not fully executed because of its own syntax error, which made it impossible to obtain the command type itself.

The number of requests are divided into sent and received requests as follows:

• Sent and received—Commands that have a specific context ID and termination ID.
• Wildcards—Commands that contain wildcard context IDs or wildcard termination IDs or both. The counter counts the total number of matches on wildcards.

Command Responses

Command responses received do not reflect the number of matches sent in command responses because:

• Wildcard responses do not indicate how many matches succeeded
• The software stops parsing responses when it first encounters an error so there is no distinction between single and wildcard commands.

Command responses received are incremented as follows:

• Each response received increments the received counter.
• Each command failure increments the error counter.

The command responses sent/error counters are incremented as follows:

• Each successful match increments the sent counter.
• Each failure increments both the sent and the error counter.

Related Topics

• Chapter 25, Packet Gateway Control Protocol Operational Mode Commands in JUNOS System Basics and Services Command Reference

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