Datatek DT-4180 User Manual

Page 46

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9 4 8 0 , 4 1 8 0 , 4 2 8 0 , 4 2 8 4 4 0 0 0 X A U s e r

M a n u a l



04/09/09

46

It should be noted that some host Internet Protocol implementations issue duplicate
responses to a single ICMP request. The ping command will suppress duplicate replies.

6.1.25 TraceRoute

trte <IP address>


The

trte

command is only visible when the unit is logged in. The command has a single

required argument, the IP address that is to be pinged.

The trte command formats an ICMP echo request packet that is then sent to the IP
Address specified. The valid packet “time to live” is set to an initial value of “1”. If the IP
address is on the local subnet, the ICMP echo will respond immediately. If the IP
address is on a different subnet, the gateway router will decrement the “time to live”
upon routing the packet. When the “time to live” reaches zero, the gateway sends an
ICMP “time exceeded” message to the xxxx. The xxxx then displays the gateway
device, and increments the “time to live” on the next ICMP echo request packet. This
continues until the IP address is reached. The result is a display of all the intermediary
gateway devices used to reach the IP address from the xxxx.

If no answer is received, each “time to live” value is tried 3 times before an increment.
The timeout is 5 seconds for each attempt. The maximum number of “time to live” is set
to 30 in this build of the xxxx.

Since a traceroute command can be unusually long in duration, any character sent to the
console will interrupt the operation of the traceroute command.

6.1.26 TSR

CONFIGURATION

Syntax: TSR [frmr = < e1 | t1 > ]
[prof = < t1 waveform > ]
[timing = < int | net > ]
chan=<Channel #> [addslot = <all | slot_no> ]
[delslot = <all | slot_no> ]
[tsrate=<64|56|48|40|32|24|16|8>]
[type=< ORIG | RCV >]
[codec=< HDLC | TRANS >]
[dest=<IP Address> dport=<TCP Port>]
[hport=<Hunt Group TCP Port Number>]
[crc=< 16 | 32 >]


This command configures the RJ48C Time Slot Router interface on the 4000XA and
4180
. The TSR supports channels that contain one or more timeslots. There are 24
channels available for a T1 connection to the TSR, and 32 channels available for an E1
connection to the TSR. Each channel is independent, and may be used for HDLC based
data or for bit-independent data such as voice. When HDLC based data is specified, the
HDLC protocol is terminated on the 4000XA/4180 and only user traffic traverses the IP
network. The network protocol for HDLC TSR channels is TCP, and is compatible with
6xxx based applications. When transparent based data is specified, the 4000XA/4180

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