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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 DNS-

SRV 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.

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, DNS-

SRV 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

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