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Chapter 2
Messages and Recovery Procedures
Error Message SW_DAI-4-SPECIAL_LOG_ENTRY: [dec] Invalid ARP packets [[time-of-day]].
Error Message SW_DAI-6-ACL_PERMIT: [dec] ARPs ([chars]) on [chars], vlan
[dec].([[enet]/[chars]/[enet]/[chars]/[time-of-day]]).
Error Message SW_DAI-6-DHCP_SNOOPING_PERMIT: [dec] ARPs ([chars]) on [chars], vlan
[dec].([[enet]/[chars]/[enet]/[chars]/[time-of-day]]).
SW_VLAN Messages
This section contains the VLAN manager messages. The VLAN manager receives information from the
VTP and enables the proper VLAN membership on all interfaces through the port manager.
Error Message SW_VLAN-3-VLAN_PM_NOTIFICATION_FAILURE: VLAN Manager synchronization
failure with Port Manager over [chars].
OL-9641-01
Explanation
This message means that the switch has received ARP packets considered invalid by
ARP inspection. The packets are erroneous, and their presence might show attempted
man-in-the-middle attacks in the network. This message differs from other SW_DAI messages in
that this message captures all messages when the rate of incoming packets exceeds the dynamic ARP
inspection logging rate. [dec] is the number of invalid ARP packets, and [time-of-day] is the time
of day.
No action is required.
Recommended Action
Explanation
This message means that the switch has received ARP packets that are permitted as a
result of an ACL match. The first [dec] is the number of valid ARP packets. The first [chars] is either
Req (request) or Res (response), and the second [chars] is the short name of the ingress interface.
The second [dec] is the ingress VLAN ID. [enet]/[chars]/[enet]/[chars]/[time-of-day] is the MAC
address of the sender, the IP address of the sender, the MAC address of the target, the IP address of
the target, and the time of day.
No action is required.
Recommended Action
This message means that the switch has received ARP packets that have been permitted
Explanation
because the sender's IP and MAC address match the DHCP snooping database for the received
VLAN. The first [dec] is the number of valid ARP packets. The first [chars] is either Req (request)
or Res (response), and the second [chars] is the short name of the ingress interface. The second [dec]
is the ingress VLAN ID. [enet]/[chars]/[enet]/[chars]/[time-of-day] is the MAC address of the
sender, the IP address of the sender, the MAC address of the target, the IP address of the target, and
the time of day.
Recommended Action
No action is required.
This message means that the VLAN manager dropped a notification from the port
Explanation
manager because of a lack of ready pool space. [chars] is the type of port manager notification.
Copy the message exactly as it appears on the console or in the system log.
Recommended Action
Research and attempt to resolve the error by using the Output Interpreter. Use the Bug Toolkit to
look for similar reported problems. If you still require assistance, open a case with the TAC, or
Cisco ME 3400 and 2400 Ethernet Access Switch System Message Guide
SW_VLAN Messages
2-71
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