Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 799)

Multi-Service IronWare Switching Configuration Guide 769
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DHCP option 82 insertion
19
To display the DHCP snooping statistics counters for Ethernet ports, enter the following command.
Syntax: show ip dhcp-snooping-statistic [slot slot] | [ethernet slot/port]
NOTE
If an Ethernet port is provided, the last five dropped packets are displayed
Clearing DHCP snooping counters
To clear the DHCP snooping statistic counters for a specific slot, enter the following command.
Brocade#clear dhcp-snooping-statistics slot 1
To clear the DHCP snooping statistic counters for a specific ethernet port, enter the following
command.
Brocade#clear dhcp-snooping-statistics ethernet 1/20
Syntax: clear dhcp-snooping-statistics [slot slot] | [ethernet slot/port]
TABLE 93 Output from the show ip dhcp snooping statistic Ethernet port
This field... Displays...
DHCP packets captured The number of DHCP packets captured on port 20.
DHCP packets dropped by snooping The number of DHCP packets dropped by DHCP snooping.
Last 5 packets dropped by snooping The last 5 DHCP packets dropped per port.
Time The time tracking system for collecting statistically information. Date and
time are displayed.
DHCP Type The DHCP Type displays the following:
OFFER - When the server responds with a proposal of parameters.
ACK- When the server assign an IP address.
NAK- When the server rejects the request from the client.
Source MAC or Source IP The Source MAC or Source IP address
Server IP or Gateway IP The Serve IP or Gateway IP
Vlan The VLAN number that DHCP Snooping was rejected on.
Brocade#show ip dhcp-snooping-statistic eth 1/20
DHCP packets captured: 9
DHCP packets dropped by snooping: 7
Last 5 packets dropped by snooping:
Time DHCP type Source Mac/ Server IP/ Vlan
Source IP Gateway IP
2008-05-03 00:29:43 OFFER 0030.4843.37ad 10.1.1.125 11
10.1.1.125 10.1.1.10
2008-05-03 00:29:59 OFFER 0030.4843.37ad 10.1.1.125 11
10.1.1.125 10.1.1.10
2008-05-03 00:31:18 OFFER 0030.4843.37ad 10.1.1.125 11
10.1.1.125 10.1.1.10
2008-05-03 00:31:22 OFFER 0030.4843.37ad 10.1.1.125 11
10.1.1.125 10.1.1.10
2008-05-03 00:31:30 OFFER 0030.4843.37ad 10.1.1.125 11
10.1.1.125 10.1.1.10