Cisco Nexus 1000V - DHCP, DAI, and IPSG Troubleshooting Commands

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Cisco Nexus 1000V Troubleshooting Guide, Release 5.2(1)SV3(1.1)
OL-31593-01
Chapter 20 DHCP, DAI, and IPSG
DHCP, DAI, and IPSG Troubleshooting Commands
Host Logging
You can use the commands in this section from the ESX host to collect and view logs related to DHCP,
DAI, and IP Source Guard.
DHCP, DAI, and IPSG Troubleshooting Commands
You can use the commands in this section to troubleshoot problems related to DHCP snooping, DAI, and
IP Source Guard.
debug dhcp pss-errors Enables debugging of pss errors
debug dhcp pss-events Enables debugging of pss events
VSM Command Description
ESX Host Command Description
echo "logfile enable" > /tmp/dpafifo Enables DPA debug logging.
Logs are output to /var/log/vemdpa.log file.
echo "debug sfdhcpsagent all" > /tmp/dpafifo Enables DPA DHCP agent debug logging.
Logs are output to /var/log/vemdpa.log file.
vemlog debug sfdhcps all Enables data path debug logging, and captures
logs for the data packets sent between the client
and the server.
vemlog debug sfdhcps_pod all Captures POD (Port Opaque Data) logging for the
feature.
vemlog debug sfdhcps_config all Enables data path debug logging, and captures
logs for configuration coming from the VSM.
vemlog debug sfdhcps_binding_table all Enables data path debug logging, and captures
logs that correspond to binding database changes.
Command Description
show running-config dhcp Displays the DHCP snooping, DAI, and IP Source
Guard configuration
See Example 20-1 on page 20-7.
show ip dhcp snooping Displays general information about DHCP
snooping.
See Example 20-2 on page 20-7.
show ip dhcp snooping binding Displays the contents of the DHCP snooping
binding table.
See Example 20-3 on page 20-8.