PCoIP Management Console User Manual (Issue 12)

PCoIP Management Console User Manual
TER0812002 Issue 12 25
2. If the transmission times out, the device creates the next FQDN variation by proceeding
one level up the domain hierarchy. The last domain name attempted has a single dot in
the string.
3. After exhausting the FQDN possibilities (based on the DHCP options 15 string), the
device waits for five minutes and then uses hostname variations based on the DHCP
options 12 string.
4. After failing to contact a MC using the DHCP options 12 string, the device waits for five
minutes and then cycles back to using DHCP options 15.
5. The device repeats this process until a MC is contacted.
Example
In the following example, the DHCP options 15 returns sales.europe.companyname.com.
DHCP options 12 returns hostmachine1.sales.europe.companyname.com. Note that the
DHCP server may return no value for either option. The MC configured the PCoIP MC
DNS-Based Discovery Prefix setting in the device to equal pcoip_mc1.
The device creates the following FQDNs and sequentially attempts contact with the MC:
(attempt #1) pcoip_mc1.sales.europe.companyname.com
(attempt #2) pcoip_mc1.europe.companyname.com
(attempt #3) pcoip_mc1.companyname.com
<device delays for 5 minutes>
(attempt #4) pcoip_mc1.hostmachine1.sales.europe.companyname.com
(attempt #5) pcoip_mc1.sales.europe.companyname.com
(attempt #6) pcoip_mc1.europe.companyname.com
(attempt #7) pcoip_mc1.companyname.com
<device delays for 5 minutes>
(attempt #8) pcoip_mc1.sales.europe.companyname.com (repeat 1-7)
...
Attempts 1 to 3 use the domain name from DHCP options 15 string. Failing to contact the
MC, the device uses the DHCP options 12 string for attempts 4 to 7. Failing transmissions for
attempt 4 to 7, the device cycles back to using DHCP options 15.
1.3.3.4 Manual Device Discovery
Manual device discovery is not an automated discovery mechanism. This mechanism
supports discovering devices that are powered on and connected to the network when the MC
is commanded to discover devices.
The MC supports manually discovering devices at a specific IP address, in a range of IP
addresses or at an FQDN. This option is useful to quickly begin using the MC or when a
deployment uses the PCoIP MC DNS-Based Discovery Prefix configuration setting
described in section 1.3.3.2. In this situation, you can discover devices using this feature and
configure the PCoIP MC DNS-Based Discovery Prefix setting of each device so the devices
contact the MC each time they boot.
Figure 1-8 shows the Management Console Device Management webpage with the Device
Discovery feature highlighted.