ADAPTING NETWORK CONTROL MESSAGING FOR ANYCAST RELIANT PLATFORMS

摘要

Some embodiments set forth a control message header rewriting methodology. Incoming packets are inspected to identify control messages. Each control message is then inspected to determine whether it originates from a client engaged in a session with a server or from an intermediary node along the path connecting the client and the server. The determination is predicated on a comparison of the addressing provided in the control message header and the addressing provided in the offending packet header, wherein the offending packet is the packet that triggers the intermediary node to issue the control message. If the addressing differs, the header addressing of control message is rewritten using the header addressing of the offending packet. Otherwise, a session table lookup is performed to identify which session the control message is directed to based in part on a hash of the control message header addressing.

主权项

1. A method comprising:
tracking at a first tier server, a plurality of active sessions established between a plurality of clients and a set of second tier servers, wherein the first tier server distributes client messaging across the set of second tier servers; receiving a message at the first tier server; parsing said message at the first tier server, said parsing comprising extracting a first address from a header of the message and a second address contained within a payload of the message, wherein the first address does not relate to an active session of the plurality of active sessions, and the second address relates to an active session of the plurality of active sessions established between a particular second tier server from the set of second tier servers and a client from the plurality of clients; and passing the message from the first tier server to the particular second tier server according to the second address extracted from the message payload.