Dell Precision R5400 Remote Access Device: Task-Based User Guide  - Page 12

PCoIP Technology User Guide (Vol I) 4 Discovery Mechanisms Host and Portal pairs must be associated with one another before a PCoIP Session can be initiated. The first step is to determine the network location of the endpoints. Although this can be done manually, it is often more convenient in larger PCoIP Technology deployments to automatically discover Host and Portal endpoints attached to the network. In order for the Connection Management Server (CMS) or other management entity, e.g. connection broker, to discover the Host and Portal endpoints, endpoints may use a combination of: • DNS-SRV Resource Records discovery (DNS- SRV RR) • SLP discovery The discovery mechanisms available with PCoIP Technology may be used with or independent of each other. SLP may be used by the Host and Portal endpoints without a management entity (e.g. Management Console or connection broker). See the Service Location Protocol section below for more details. It is recommended that deployments use DNSSRV discovery as the preferred method to discover Host and Portal endpoints. See the DNS-SRV section below for more details. The sections below summarize features for each discovery mechanism. Note: An administrator should have a good understanding of networking before implementing discovery mechanisms. Configuring Discovery The Discovery webpage is used to enable the discovery mechanisms. © 2008 Teradici Corporation TER0806003 Issue 1 Figure 10: Discovery Webpage The Discovery webpage has four fields: • Enable SLP Discovery (see Discovery Using Service Location Protocol below) • Enable Host Discovery (allows Portal to use SLP Discovery) • Enable DNS SRV Discovery (see Discovery Using DNS-SRV Resource Records below) • DNS SRV Discovery Delay (configures delay after final domain name variation for DHCP options 15 before beginning DHCP options 12 name variations - see RFC 1497 for more information) Discovery Using DNS-SRV Resource Records Host and Portal endpoints can be configured to use discovery mechanism that utilizes DNS-SRV Resource Records (refer to RFC 2782). Refer to the Management Console [2] and/or connection broker [3] documentation for configuration detail. Similar to other discovery mechanisms, DNSSRV discovery allows the management entiry to discover the endpoint, without prior endpoint configuration of the Connection Manager IP Address/DNS Name parameter. In other words, DNS-SRV discovery operates independently of the Connection Manager IP Address/DNS Name value. If the Connection Manager IP Address/DNS Name value in the endpoint becomes stale, DNS-SRV discovery continues to work and the new CMS can discover the endpoint.. Benefits DNS-SRV discovery has the ability to have redundant backup CMS hosts. DNS-SRV Resource Record can have multiple CMS servers with different priorities and weights, so Page 12 of 25