Cisco OL-8555-02 - Manual (Page 15)

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Cisco Unified IP Phone 7940G/7960G Administration Guide for Cisco Unified CallManager 4.2(3)
OL-8555-02
Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone
Status Menu
Expansion Module Stats Screen
When the Cisco Unified IP Phone Expansion Module 7914 or modules are
connected to the IP phone, the Expansion Module Stats screen displays
information about the expansions modules.
Table 6-5 explains the information that appears in this screen for each connected
expansion module. You can use this information to troubleshoot the expansion
module, if necessary. In the Expansion Module Stats screen, a statistic preceded
by “A” is for the first expansion module. A statistic preceded by “B” is for the
second expansion module.
To display the Expansion Module Stats screen, follow these steps:
Procedure
Step 1 Press the Settings button.
Step 2 Select Status.
Step 3 Select Expansion Module Stats.
Table 6-5 describes the information that displays for each connected expansion
module.
Table 6-5 Expansion Module Statistics
Item Description
Link State Overall expansion module status
RX Discarded Bytes Number of bytes discarded due to errors
RX Length Err Number of packets discarded due to improper length
RX Checksum Err Number of packets discarded due to invalid
checksum information
RX Invalid Message Number of packets that have been discarded because
a message was invalid or unsupported