Cisco 7931G Administration Guide - Page 118

Device Configuration Menu Chapter 4 Configuring Settings on the Cisco Unified IP Phone Table 4-13 Network Configuration Menu Options (continued) Option Peer Firmware Sharing Description To Change The Peer Firmware Sharing feature From Cisco Unified Communications provides these advantages in high speed Manager Administration, choose Device campus LAN settings: > Phone > Phone Configuration. • Limits congestion on TFTP transfers to centralized TFTP servers • Eliminates the need to manually control firmware upgrades • Reduces phone downtime during upgrades when many devices are reset simultaneously In most conditions, the Peer Firmware Sharing feature optimizes firmware upgrades in branch deployment scenarios over bandwidth-limited WAN links. When enabled, it allows the phone to discover like phones on the subnet that are requesting the files that make up the firmware image, and to automatically assemble transfer hierarchies on a per-file basis. The individual files making up the firmware image are retrieved from the TFTP server by only the root phone in the hierarchy, and are then rapidly transferred down the transfer hierarchy to the other phones on the subnet using TCP connections. This menu option indicates whether the phone supports peer to peer image distribution. Settings include: • Enabled • Disabled-default 4-34 Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 6.0 OL-12457-01