Using Traceroute - Cisco Nexus 9000 Series Troubleshooting Manual

Troubleshooting Tools and Methodology
switch# ping 172.28.230.1 vrf management
PING 172.28.230.1 (172.28.230.1): 56 data bytes
64 bytes from 172.28.230.1: icmp_seq=0 ttl=254 time=1.095 ms
64 bytes from 172.28.230.1: icmp_seq=1 ttl=254 time=1.083 ms
64 bytes from 172.28.230.1: icmp_seq=2 ttl=254 time=1.101 ms
64 bytes from 172.28.230.1: icmp_seq=3 ttl=254 time=1.093 ms
64 bytes from 172.28.230.1: icmp_seq=4 ttl=254 time=1.237 ms
--- 172.28.230.1 ping statistics ---
5 packets transmitted, 5 packets received, 0.00% packet loss
round-trip min/avg/max = 1.083/1.121/1.237 ms

Using Traceroute

Use traceroute to do the following:
• Trace the route followed by the data traffic.
• Compute the interswitch (hop-to-hop) latency.
The traceroute utility identifies the path taken on a hop-by-hop basis and includes a time stamp at each hop
in both directions. You can use traceroute to test the connectivity of ports along the path between the generating
device and the device closest to the destination.
Use the traceroute {dest-ipv4-addr | hostname} [vrf vrf-name] command for IPv4 networks and the
traceroute6 {dest-ipv6-addr | hostname} [vrf vrf-name] command for IPv6 networks. If the destination cannot
be reached, the path discovery traces the path up to the point of failure.
switch# traceroute 172.28.254.254 vrf management
traceroute to 172.28.254.254 (172.28.254.254), 30 hops max, 40 byte packets
1
2
3
4
Press Ctrl-C to terminate a running traceroute.
You can use the following commands to specify a source interface for the traceroute:
Command
traceroute {dest-ipv4-addr | hostname} [source
{dest-ipv4-addr | hostname | interface}] [vrf
vrf-name]
Example:
switch# traceroute 112.112.112.1 source vlan
10
traceroute6 {dest-ipv6-addr | hostname} [source
{dest-ipv6-addr | hostname | interface}] [vrf
vrf-name]
Example:
switch# traceroute6 2010:11:22:0:1000::1
source ethernet 2/2
172.28.230.1 (172.28.230.1)
172.24.114.213 (172.24.114.213)
172.20.147.46 (172.20.147.46)
172.28.254.254 (172.28.254.254)
0.941 ms 0.676 ms 0.585 ms
0.733 ms 0.7 ms 0.69 ms
0.671 ms 0.619 ms 0.615 ms
0.613 ms 0.628 ms
Purpose
Specifies the source IPv4 address of the traceroute
packets from the specified IP address, hostname, or
interface.
Specifies the source IPv6 address of the traceroute6
packets from the specified IP address, hostname, or
interface.
Cisco Nexus 9000 Series NX-OS Troubleshooting Guide, Release 7.x
Using Traceroute
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