Introduction

This page is extremely incomplete as of this time

This page begins to describe the protocol level details for Hypergrid. It will apply only to Hypergrid 2.0 and later.

Components

Grid Services

Gatekeeper service

• Provides information to callers about Hypergrid accessible regions on the grid.
• Controls and manages user agent access to the grid - similar to the login service for non-Hypergrid users.
  • Authenticates an incoming connection with the source grid's User Agent VerifyAgent call.

User Agent service

• Provides a VerifyAgent call so that the Gatekeeper service can authenticate that an incoming user agent originates from its given source grid.

Simulator

• Initiates the teleport process
• Transfers a session token to the target simulator to complete the teleport process

Viewer

• Speaks to the current and target simulators using LLUDP and capabilities

Protocol Flow

Arrival of an agent into a foreign grid

• Gatekeeper service receives a request from the source grid for information about a region with a given UUID.
• Gatekeeper service receives login request for a given agent (e.g. Joe Bloggs @ http://grid-source.com:8002).
• Gatekeeper service authenticates with grid-source.com that user agent originates from there.
• Gatekeeper service notifies destination region that a connection is incoming.
• Destination region waits for initial client seed capabilities connection.