RFC1149 entitled IP over avian carriers is one of those RFCs that were published on April 1st. It describes a method to carry IP packets by using pigeons. RFC1149 was designed during the dialup era and packets were printed on sheets of papers before being attached to pigeons and a scanner was used by the recipient to recover the packet. Among all the April fools RFCs that have been written, RFC1149 is one of the few that has actually been implemented.

A few years ago, Juniper Networks used cartoons and humour to attack its rival cisco in a marketing campaign with companion postcards and lots of cartoons. Recently, Juniper decided to come back to traditional marketing and removed the cartoons from its website. Cisco took the opposite direction with a new marketing campaign based on flash videos : http://www.cisco.com/cdc_content_elements/flash/security/therealm/index....