Specifications

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Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.5
OL-23092-01
Chapter 4 Configuring Settings on the Cisco Unified IP Phone
Device Configuration Menu
Peer Firmware Sharing The Peer Firmware Sharing feature provides these advantages
in high speed campus LAN settings:
• Limits congestion on TFTP transfers to centralized
remote TFTP servers
• Eliminates the need to manually control firmware
upgrades
• Reduces phone downtime during upgrades when large
numbers of devices are reset simultaneously
Peer Firmware Sharing may also aid in firmware upgrades in
branch/remote office 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
firmware sharing. Settings include:
• Enabled—default
• Disabled
From Cisco Unified
Communications Manager
Administration, choose
Device > Phone > Phone
Configuration.
Log Server Indicates the IP address and port of the remote logging
machine to which the phone sends log messages. These log
messages help in debugging the peer to peer image
distribution feature.
Note The remote logging setting does not affect the sharing
log messages sent to the phone log.
From Cisco Unified
Communications Manager
Administration, choose
Device > Phone > Phone
Configuration.
LLDP: PC Port Enables and disables Link Layer Discovery Protocol (LLDP)
on the PC port. Use this setting to force the phone to use a
specific discovery protocol. Settings include:
• Enabled—default
• Disabled
From Cisco Unified
Communications Manager
Administration, choose
Device > Phone > Phone
Configuration.
LLDP-MED: SW Port Enables and disables Link Layer Discovery Protocol Media
Endpoint Discovery (LLDP-MED) on the switch port. Use
this setting to force the phone to use a specific discovery
protocol, which should match the protocol supported by the
switch. Settings include:
• Enabled—default
• Disabled
From Cisco Unified
Communications Manager
Administration, choose
Device > Phone > Phone
Configuration.
Table 4-20 Network Configuration Menu Options (continued)
Option Description To Change