OS10 Enterprise Edition User Guide Release 10.4.0E(R3)

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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
Command Mode
EXEC
Usage Information
None
Example
OS10# traceroute www.dell.com
                                       traceroute to www.dell.com (23.73.112.54), 30 hops max, 60 byte packets
                                       1  10.11.97.254 (10.11.97.254)  4.298 ms  4.417 ms  4.398 ms
                                       2  10.11.3.254 (10.11.3.254)  2.121 ms  2.326 ms  2.550 ms
                                       3  10.11.27.254 (10.11.27.254)  2.233 ms  2.207 ms  2.391 ms
                                       4  Host65.hbms.com (63.80.56.65)  3.583 ms  3.776 ms  3.757 ms
                                       5  host33.30.198.65 (65.198.30.33)  3.758 ms  4.286 ms  4.221 ms
                                       6  3.GigabitEthernet3-3.GW3.SCL2.ALTER.NET (152.179.99.173)  4.428 ms  2.593 ms  3.243 ms
                                       7  0.xe-7-0-1.XL3.SJC7.ALTER.NET (152.63.48.254)  3.915 ms  3.603 ms  3.790 ms
                                       8  TenGigE0-4-0-5.GW6.SJC7.ALTER.NET (152.63.49.254)  11.781 ms  10.600 ms  9.402 ms
                                       9  23.73.112.54 (23.73.112.54)  3.606 ms  3.542 ms  3.773 ms
                                    
Example (IPv6)
OS10# traceroute 20::1
                                       traceroute to 20::1 (20::1), 30 hops max, 80 byte packets
                                       1  20::1 (20::1)  2.622 ms  2.649 ms  2.964 ms
                                    
Supported Releases
10.2.0E or later

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