Caching with selective multicasting in a publish-subscribe network

A network for routing and caching packets of data, comprising:

• an edge routing node that receives and routs packets having a header section and a payload section, the edge routing node including:
• an intelligent router that routes the received packets, the intelligent router including instructions for:
• inspecting the payload section of the packets in a network core for use in determining how to route the packets to subscribers;
• and
• selectively routing the packets based upon the inspecting;
• and
• wherein the network further comprises a core routing node located in the network core and a cache manager located in the core routing node operatively connected to the intelligent router, the cache manager including instructions for:
• determining a channel corresponding to each of the packets;
• retrieving channel properties for the channels;
• determining, from the channel properties, whether each channel is a persistent channel;
• and
• if a channel is a persistent channel, locally caching data from the corresponding packets in a local cache in the core routing node, wherein the core routing node is located upstream from the edge routing node in a direction moving away from a subscriber machine.

An apparatus for routing and caching packets of data in a multicast network, the apparatus including a plurality of processors and instructions for:

• receiving a packet having a header section and a payload section;
• inspecting the payload section of the packet in a network core for use in determining how to route the packet to subscribers;
• selectively routing the packet based upon the inspecting;
• determining a channel corresponding to the packet;
• retrieving channel properties for the channel;
• determining, from the channel properties, whether the channel is a persistent channel;
• and
• if the channel is a persistent channel, locally caching data from the packet in a core routing node in the network core, wherein the core routing node is located upstream from an edge routing node in a direction moving away from a subscriber machine.