Cisco Catalyst 3750-X Message Guide

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Catalyst 3750-X, 3750-E, 3560-X, and 3560-E Switch System Message Guide
OL-9772-05
Chapter 2 Message and Recovery Procedures
DHCP_SNOOPING Messages
Error Message DHCP_SNOOPING-4-DHCP_SNOOPING_PVLAN_WARNING: DHCP Snooping
configuration may not take effect on secondary vlan [dec]. [chars]
Explanation If the private VLAN feature is configured, the DHCP snooping configuration on the
primary VLAN automatically propagates to all the secondary VLANs. [dec] is the VLAN ID of the
secondary VLAN, and [chars] is the warning.
Recommended Action No action is required.
Error Message DHCP_SNOOPING-4-IP_SOURCE_BINDING_NON_EXISTING_VLAN_WARNING: IP
source binding is configured on non existing vlan [dec].
Explanation An IP source binding was configured on a VLAN that has not been configured yet. [dec]
is the VLAN.
Recommended Action No action is required.
Error Message DHCP_SNOOPING-4-IP_SOURCE_BINDING_PVLAN_WARNING: IP source filter may
not take effect on secondary vlan [dec] where IP source binding is configured.
[chars].
Explanation If private VLANs are configured, the IP-source-guard filter on the primary VLAN
automatically propagates to all secondary VLANs. [dec] is the secondary VLAN, and [chars] is the
warning.
Recommended Action No action is required.
Error Message DHCP_SNOOPING-4-NTP_NOT_RUNNING: NTP is not running; reloaded binding
lease expiration times are incorrect.
Explanation If the DHCP snooping database agent loads the DHCP snooping bindings and Network
Time Protocol (NTP) is not running, the calculated lease duration for the bindings is incorrect.
Recommended Action Configure NTP on the switch to provide an accurate time and date for the
system clock. Then disable and re-enable DHCP snooping to clear the DHCP snooping binding
database.
Error Message DHCP_SNOOPING-4-QUEUE_FULL: Fail to enqueue DHCP packet into
processing queue: [chars], the queue is most likely full and the packet will be
dropped.
Explanation The CPU is receiving DHCP at a higher rate than the DHCP snooping can process.
These DHCP packets are dropped to prevent a denial of service attack. [chars] is the warning.
Recommended Action No action is required.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing