Monitoring The Physical Path; Executing Ip Traceroute; Redirecting Debug And Error Message Output - Cisco Catalyst 9500 Manual

Troubleshooting the Software Configuration
configure only the yellow threshold level (in Celsius) by using the system env temperature threshold yellow
value global configuration command to set the difference between the yellow and red thresholds. You cannot
configure the green or red thresholds. For more information, see the command reference for this release.

Monitoring the Physical Path

You can monitor the physical path that a packet takes from a source device to a destination device by using
one of these privileged EXEC commands:
Table 17: Monitoring the Physical Path
Command
tracetroute mac [interface interface-id]
{source-mac-address} [interface interface-id]
{destination-mac-address} [vlan vlan-id] [detail]
tracetroute mac ip {source-ip-address |
source-hostname}{destination-ip-address |
destination-hostname} [detail]

Executing IP Traceroute

Note
Command
traceroute ip host
Device# traceroute ip 192.51.100.1

Redirecting Debug and Error Message Output

By default, the network server sends the output from debug commands and system error messages to the
console. If you use this default, you can use a virtual terminal connection to monitor debug output instead of
connecting to the console port or the Ethernet management port.
Possible destinations include the console, virtual terminals, internal buffer, and UNIX hosts running a syslog
server. The syslog format is compatible with 4.3 Berkeley Standard Distribution (BSD) UNIX and its
derivatives.
Though other protocol keywords are available with the traceroute privileged EXEC command, they are not
supported in this release.
System Management Configuration Guide, Cisco IOS XE Amsterdam 17.2.x (Catalyst 9500 Switches)
Monitoring the Physical Path
Purpose
Displays the Layer 2 path taken by the packets from
the specified source MAC address to the specified
destination MAC address.
Displays the Layer 2 path taken by the packets from
the specified source IP address or hostname to the
specified destination IP address or hostname.
Purpose
Traces the path that
packets take through the
network.
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