The SYSTEM:.*dcd.* unknown encaps_ohead; dev vlan, encaps .* flags.* message is generated by the dcd daemon during normal operation. This article documents an approach to understand this message.

The problem related to this syslog message is described in the following sections:

• Symptoms
• Possible Causes
• Confirm Causes

SYMPTOMS:

A message similar to the following is reported in syslog:

dcd[832]: %DAEMON-5: unknown encaps_ohead; dev vlan, encaps 71, flags 0x1, addr-fam 2

POSSIBLE CAUSES:

The message is generated by the dcd daemon when any of the below mentioned protocols and VLANs are configured:

• Every time a routed VLAN interface is created
• An interface is assigned to LAG, tagging, Multiple Spanning Tree Instance (MSTI) or VRRP

This is a log notice and not an error. It is not an indication to any problem as well.

CONFIRM CAUSES:

Check that either of these conditions exist in the configuration:

• A VLAN interface is assigned to a routing protocol
• Interfaces are assigned to LAG, tagging, MSTI, or VRRP

The SYSTEM:.*dcd.* unknown encaps_ohead; dev vlan, encaps .* flags.* message is a log notice and not an error. It is not an indication of a problem.

This message can be removed by filtering these messages using the following:

user@switch# set system syslog file messages match "<!(.*encaps_ohead; dev vlan.*)"