Cisco 8861 Administration Guide

Cisco proprietary protocol. With CPPDP, all the devices in the subnet form a peer-to-peer hierarchy, and then
copy the firmware or the other files from peer devices to the neighboring devices. To optimize firmware
upgrades, a root phone downloads the firmware image from the load server and then transfers the firmware
to other phones on the subnet using TCP connections.
Peer firmware sharing:
• Limits congestion on TFTP transfers to centralized remove load servers.
• Eliminates the need to manually control firmware upgrades.
• Reduces phone downtime during upgrades when large numbers of phones are reset simultaneously.
• Peer firmware sharing does not function unless multiple phones are set to upgrade at the same time.
When a NOTIFY is sent with Event:resync, it initiates a resync on the phone. Example of an xml that
can contain the configurations to initiate the upgrade:
“Event:resync;profile="http://10.77.10.141/profile.xml
• When you set the Peer Firmware Sharing Log server to an IP address and port, the PFS specific logs are
sent to that server as UDP messages. This setting must be done on each phone. You can then use the log
messages when troubleshooting issues related to PFS.
Note
Peer_Firmware_Sharing_Log_Server specifies UDP Remote syslog server hostname and the port. The port
defaults to the default syslog 514.
For example:
<Peer_Firmware_Sharing_Log_Server>192.168.5.5</ Peer_Firmware_Sharing_Log_Server>
To use this feature, enable PFS on the phones.
Enable Peer Firmware Sharing
You can enable Peer Firmware Sharing (PFS) when you want a phone to find other phones of the same model
or series on the subnet and share updated firmware files. The phones are organized into a hierarchy and one
of the phones in that hierarchy acts as a root phone. After the hierarchy formation, the root phone downloads
the firmware image from the load server and then transfers the firmware to other phones in the hierarchy.
Before you begin
Access the phone administration web page. See Access the Phone Web Page, on page 88.
Procedure
Step 1 Select Voice > Provisioning.
Step 2 In the Firmware Upgrade section, set the Peer Firmware Sharing and the Peer Firmware Sharing Log
Server fields as described in Firmware Upgrade, on page 291.
Step 3 Click Submit All Changes.
Cisco IP Phone 8800 Series Multiplatform Phones Administration Guide
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Cisco IP Phone Administration
Enable Peer Firmware Sharing

Cisco 8861 Specifications

General

Brand	Cisco
Model	8861
Category	IP Phone
Language	English