UTStarcom iSpirit 3026 Manual page 175

Because the TELNET end need PC's communication with the switch, so we can't open the IP
and TCP DEBUG configure in TELNET, or there will be dead circle of data flow which will use up
all the sources.
2. The introduction to PING instruments
The iSpirit 3026 switch supplies with the PING instrument to test the connection of switch with
destination equipment, the PING instrument use ICMP protocol, when the switch PING a
destination equipment, the switch will send an ICMP echoplex requesting packet to wait for a
matched ICMP answer packet. If you received the answer packet, it means that the switch and
the destination has been connected, if not and then send for times set and even not receive the
answer packet, it means than they have not been connected.
The iSpirit 3026 switch supply with a simple PING command and a complex PING command,
the simple PING command is used to check the connection between the switch and the
destination equipment, the switch will send 5 ICMP echoplex requesting packet to indicate
whether the ICMP received is answered or not. And the complex PING command not only
checks the connection between the switch and the destination equipment, but also has functions
as follows:
Can set the number of ICMP echoplex-requesting packet sent
Can set the over time interval of waiting for ICMP echoplex-requesting packet sent.
Can set the magnitude of the data field of ICMP echoples-requesting packet sent.
Can set the source address of ICMP echoples-requesting packet sent.
Can set the route with note of ICMP echoples-requesting packet sent, and can take a note
of the equipment address in this route between the switch and the destination equipment
Can set that there is no regular route in ICMP echoples-requesting packet sent, and can set
the connection of the route between the switch and the destination equipment
Can set that there is regular route in ICMP echoples-requesting packet sent, and can set the
connection of the route between the switch and the destination equipment
Can set that there is time note in ICMP echoples-requesting packet sent, and can take a
note of the equipment address and the time of the route between the switch and the
destination equipment.
3. Introduction to TRACEROUTE instrument
The iSpirit 3026 switch supplies with a TRACEROUTE instrument to find out each route
equipment between the switch and the destination equipment and to ascertain the route