Dell MX5108n OS10 Enterprise Edition User Guide for PowerEdge MX IO Modules Re - Page 71

traceroute

Page 71 highlights

Command Mode Usage Information Example EXEC Enter zero (0) for the terminal to display without pausing. OS10# terminal monitor Supported Releases 10.2.0E or later traceroute Displays the routes that packets take to travel to an IP address. Syntax Parameters traceroute [vrf management] host [-46dFITnreAUDV] [-f first_ttl] [-g gate,...] [-i device] [-m max_ttl] [-N squeries] [-p port] [-t tos] [-l flow_label] [-w waittime] [-q nqueries] [-s src_addr] [-z sendwait] [--fwmark=num] host [packetlen] • vrf management- (Optional) Traces the route to an IP address in the management VRF instance. • host - Enter the host to trace packets from. • -i interface - (Optional) Enter the IP address of the interface through which traceroute sends packets. By default, the interface is selected according to the routing table. • -m max_ttl - (Optional) Enter the maximum number of hops (maximum time-to-live value) that traceroute probes (default 30). • -p port - (Optional) Enter a destination port: - For UDP tracing, enter the destination port base that traceroute uses (the destination port number is incremented by each probe). - For ICMP tracing, enter the initial ICMP sequence value (incremented by each probe). - For TCP tracing, enter the (constant) destination port to connect. - -P protocol - (Optional) Use a raw packet of the specified protocol for traceroute. Default protocol is 253 (RFC 3692). - -s source_address - (Optional) Enter an alternative source address of one of the interfaces. By default, the address of the outgoing interface is used. - -q nqueries - (Optional) Enter the number of probe packets per hop (default 3). - -N squeries - (Optional) Enter the number of probe packets that are sent out simultaneously to accelerate traceroute (default 16). - -t tos - (Optional) For IPv4, enter the Type of Service (TOS) and Precedence values to use. 16 sets a low delay; 8 sets a high throughput. - -UL - (Optional) Use UDPLITE for tracerouting (default port is 53). - -w waittime - (Optional) Enter the time (in seconds) to wait for a response to a probe (default 5 seconds). - -z sendwait - (Optional) Enter the minimal time interval to wait between probes (default 0). A value greater than 10 specifies a number in milliseconds, otherwise it specifies a number of seconds. This option is useful when routers rate-limit ICMP messages. - --mtu - (Optional) Discovers the MTU from the path being traced. - --back - (Optional) Prints the number of backward hops when it seems different with the forward direction. - host - (Required) Enter the name or IP address of the destination device. - packet_len - (Optional) Enter the total size of the probing packet (default 60 bytes for IPv4 and 80 for IPv6). Default Not configured Getting Started 71

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Command Mode
EXEC
Usage Information
Enter zero (0) for the terminal to display without pausing.
Example
OS10# terminal monitor
Supported Releases
10.2.0E or later
traceroute
Displays the routes that packets take to travel to an IP address.
Syntax
traceroute [vrf management]
host
[-46dFITnreAUDV] [-f first_ttl] [-g gate,...]
[-i device] [-m max_ttl] [-N squeries] [-p port] [-t tos] [-l flow_label] [-w
waittime] [-q nqueries] [-s src_addr] [-z sendwait] [--fwmark=num] host
[packetlen]
Parameters
vrf management
— (Optional) Traces the route to an IP address in the management VRF instance.
host
— Enter the host to trace packets from.
-i
interface
— (Optional) Enter the IP address of the interface through which traceroute sends packets.
By default, the interface is selected according to the routing table.
-m
max_ttl
— (Optional) Enter the maximum number of hops (maximum time-to-live value) that
traceroute probes (default 30).
-p
port
— (Optional) Enter a destination port:
For UDP tracing, enter the destination port base that traceroute uses (the destination port number is
incremented by each probe).
For ICMP tracing, enter the initial ICMP sequence value (incremented by each probe).
For TCP tracing, enter the (constant) destination port to connect.
-P
protocol
— (Optional) Use a raw packet of the
specified
protocol for traceroute. Default protocol is
253 (RFC 3692).
-s
source_address
— (Optional) Enter an alternative source address of one of the interfaces. By
default, the address of the outgoing interface is used.
-q
nqueries
— (Optional) Enter the number of probe packets per hop (default 3).
-N
squeries
— (Optional) Enter the number of probe packets that are sent out simultaneously to
accelerate traceroute (default 16).
-t
tos
— (Optional) For IPv4, enter the Type of Service (TOS) and Precedence values to use. 16 sets a
low delay; 8 sets a high throughput.
-UL
— (Optional) Use UDPLITE for tracerouting (default port is 53).
-w
waittime
— (Optional) Enter the time (in seconds) to wait for a response to a probe (default 5
seconds).
-z
sendwait
— (Optional) Enter the minimal time interval to wait between probes (default 0). A value
greater than 10
specifies
a number in milliseconds, otherwise it
specifies
a number of seconds. This option
is useful when routers rate-limit ICMP messages.
--mtu
— (Optional) Discovers the MTU from the path being traced.
--back
— (Optional) Prints the number of backward hops when it seems
different
with the forward
direction.
host
— (Required) Enter the name or IP address of the destination device.
packet_len
— (Optional) Enter the total size of the probing packet (default 60 bytes for IPv4 and 80
for IPv6).
Default
Not
configured
Getting Started
71