Technical information

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594 CHAPTER 2: CUDA 12000 BASE SYSTEM COMMANDS
-p <number> Specifies the base UDP port number on the destination host to which the
traceroute command sends probe packets. Values range from 1 to 65535.
The default is 33434.
The traceroute command assumes that no other processes on the
destination host use UDP port numbers in the range of base to base +
nhops -1. For example, if the base is 33434, then the traceroute command
uses a UDP port in the range:
33434 to 33434 + nhops - 1
If another process listens on a port in this range, you can use this argument
to specify a new base UDP port number, thereby configuring an unused
port range.
-q <number> Specifies the number of probe packets sent to each hop. Values range
from 1 to 10. The default is 3.
-t <number> Specifies the type-of-service (ToS) value in probe packets. Use this
argument to determine if different ToS take different paths. Useful values
are 16 (low delay) and 8 (high throughput). The value must be a decimal
integer in the range from 0 to 255. The default is 0.
-s <src-ip-address> Specifies the IP address (which you must supply as an IP number, not a
hostname) on your Cuda 12000 that will be the source address in
outgoing probe packets. By default, the source address is the IP address of
the interface on which the Cuda 12000 sends the probe packet. If your
Cuda 12000 has more than one IP address, this argument enables you to
override the default source address.
-x <number> Specifies the maximum number of consecutive timeouts. The traceroute
command stops the trace when this threshold is reached. Values range
from 0 to 255. The default is 5.
-F Disables IP fragmentation for the trace. If you disable fragmentation, and
the packet size that you specify with the <data-size> argument is so big
that routers fragment it along the route, the traceroute command
indicates that fragmentation has occurred.
If a router returns the value of the proper MTU size, traceroute decreases
the packet size automatically to this new value. Otherwise, traceroute
chooses a shorter packet size.
By default, fragmentation is enabled. You must specify the -F argument to
disable it.
<dest-ip-address> Specifies the destination IP address for the trace.
<data-size> Specifies the size, in bytes, of the probe packets in the trace. Values range
from 64 bytes to 64000 bytes. The default is 64 bytes.