Cna Tests - Avaya G250 Administration

CNA tests

The G250/G350 test plug supports all CNA tests, which are:
Traceroute. Measures per-hop round-trip delays to a target IP address by sending a
●
sequence of hop-limited UDP messages, each with a TTL (time-to-live) value that is one
greater than that of the preceding message.
Real Time Protocol (RTP). Measures delay, packet loss, and jitter to another test plug by
●
sending a simulated RTP stream that is echoed back.
Ping. Sends an ICMP echo message to a target IP address, and reports whether or not a
●
response was returned.
Transmission Control Protocol (TCP) Connect. Attempts to establish a TCP connection to
●
a specified port at a target IP address and reports whether the attempt succeeded or failed
and the time taken by the TCP packet to reach its destination.
Merge. Chatter test that is used, transparently to the user, to identify a single device with
●
multiple IP addresses and to merge its multiple appearances into one in the network
topology map.
When the test plug receives a request to run an RTP test, the test plug uses a UDP port called
the RTP test port to send an RTP stream to another test plug. The test plug listens on the RTP
echo port for RTP streams sent by other test plugs running RTP tests. All the UDP ports have
default values, which can be overridden using CLI commands. The defaults are:
Any changes you make to the test plug configuration, such as changing scheduler addresses or
port numbers, only take effect when you cause the test plug to disconnect from the scheduler
and register again.
Table 58: Default UDP port values
UDP Port Default value
Control port 8889
RTP echo port 8888
RTP test port 8887
Configuring and monitoring CNA test plugs
Issue 3 February 2007 397