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Catalyst 4500 Series Switch Cisco IOS System Message Guide Release 12.2(31)SGA
OL-11541-01
Chapter 2 Messages and Recovery Procedures
DHCP_SNOOPING Messages
Error Message DHCP_SNOOPING-5-DHCP_SNOOPING_UNTRUSTED_PORT: [char] drop message on
untrusted port message type: [char] MAC sa: [mac-addr]
Explanation
The DHCP snooping feature discovered certain types of DHCP messages not allowed
on the untrusted interface, indicating some host may be trying to act as a DHCP server. The packet
will be dropped.
Recommended Action This is an informational message only. No action is required.
DHCP_SNOOPING-6
Error Message DHCP_SNOOPING-6-AGENT_OPERATION_SUCCEEDED: DHCP snooping database
[char] succeeded.
Explanation
DHCP snooping has successfully read or written to the database.
Recommended Action This is an informational message only. No action is required.
Error Message DHCP_SNOOPING-6-BINDING_COLLISION: Binding collision. [dec] bindings
ignored
Explanation One or more bindings from the database file has a MAC address and VLAN
combination for which the switch already holds DHCP snooping bindings.
Recommended Action This is an informational message only. No action is required.
Error Message DHCP_SNOOPING-6-INTERFACE_NOT_VALID: Interface not valid. [dec]
bindings ignored.
Explanation
The interface that is listed in the database file’s binding is not available, that the
interface is a router port, or that the interface is a DHCP snooping-trusted Layer 2 interface.
Recommended Action This is an informational message only. No action is required.
Error Message DHCP_SNOOPING-6-LEASE_EXPIRED: Lease Expired. [dec] bindings ignored.
Explanation
The DHCP lease expired for the given number of bindings from the database file.
Recommended Action This is an informational message only. No action is required.
Error Message DHCP_SNOOPING-6-PARSE_FAILURE: Parsing failed for [dec] bindings.
Explanation The database read operation failed for the stated number of bindings.
Recommended Action This is an informational message only. No action is required.