Does Cisco router supports Type 6 LSA ?
Recently I have gone through some settings which helped to reduce the syslog messages generated on router when the Type 6 LSA received. As per the RFC 1583. 1584 1585 Multicast extension of the OSPF , which outlined to use the LSA type 6. However, Cisco ios does not support the MOSPF and therefore, when it received a packet it will generate syslog to indicate LSA not supported. To reduce the CPU intensity of this syslog messages make, cisco has command that can help you (config)#router ospf <pid> (config-router)# ignore lsa mospf effect of this command is "do not complain when received LSA of specified type in here" :) Enjoy!