Cisco Unified Wireless IP Phone 7921G Administration Guide Release 7.0
Monitoring the Cisco Unified Wireless IP Phone Remotely
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Monitoring the Cisco Unified Wireless IP Phone Remotely

Table Of Contents

Monitoring the Cisco Unified Wireless IP Phone Remotely

Accessing the Web Page for a Phone

Wireless LAN Statistics

Network Statistics

Stream Statistics


Monitoring the Cisco Unified Wireless IP Phone Remotely


This chapter describes the methods for monitoring the Cisco Unified Wireless IP Phone 7921G by using a web page. It contains the following sections:

Accessing the Web Page for a Phone

Wireless LAN Statistics

Network Statistics

Stream Statistics

For information about using these web pages, see Chapter 4 "Using the Cisco Unified Wireless IP Phone 7921G Web Pages." For more information about troubleshooting the Cisco Unified IP Phone, Chapter 10 "Troubleshooting the Cisco Unified Wireless IP Phone 7921G."

Accessing the Web Page for a Phone

To access the web page for a Cisco Unified Wireless IP Phone 7921G, perform the following steps.

Procedure


Step 1 Obtain the IP address of the Cisco Unified Wireless IP Phone 7921G using one of these methods:

Search for the phone in Cisco Unified Communications Manager by choosing Devices > Phones. Phones registered with Cisco Unified Communications Manager display the IP address on the Find and List Phones web page and at the top of the Phone Configuration web page.

On the Cisco Unified Wireless IP Phone 7921G, press SETTINGS > Device Information> Network and then scroll to the IP Address option.

Step 2 Open a web browser and enter the following URL, where IP_address is the IP address of the Cisco Unified IP Phone:

https://<IP_address>


Note When the Security Alert dialog box displays a notice to accept the Trust Certificate, click Yes or Always to accept the application.


Step 3 Log in to the web pages with username: admin and enter the password: Cisco for the phone web pages.


The web pages for a Cisco Unified Wireless IP Phone 7921G includes these items for monitoring the phone:

Wireless LAN Statistics—Provides information about the wireless LAN configuration. For more information, see the "Wireless LAN Statistics" section.

Network Statistics—Provides information about network traffic. For more information, see the "Network Statistics" section.

Stream Statistics—Provides information about voice quality items. For more information, see the "Stream Statistics" section.

Wireless LAN Statistics

The Wireless LAN Statistics section provides information about packets that have been received and transmitted by the phone. Table 9-1 describes the statistics.

Table 9-1 Wireless LAN Statistics Items 

Item
Description
Rx Statistics

Rx OK Frames

Number of packets received successfully

Rx Error Frames

Number of packets received with errors

Rx Unicast Frames

Number of packets received that are unicast traffic

Rx Multicast Frames

Number of packets received that are multicast traffic

Rx Broadcast Frames

Number of packets received that are broadcast traffic

Rx FCS Frames

Number of packets received frames checksum error

Rx Beacons

Number of received beacons

Association Rejects

Number of rejected association attempts

Association Timeouts

Number of failed association attempts due to timeout

Authentication Rejects

Number of authentication attempts that the AP rejected

Authentication Timeouts

Number of failed authentication attempts due to timeout

Tx Statistics (Best Effort)

Tx OK Frames

Number of frames transmitted with successfully

Tx Error Frames

Number of frames transmitted with errors

Tx Unicast Frames

Number of frames transmitted that are unicast traffic

Tx Multicast Frames

Number of frames transmitted that are multicast traffic

Tx Broadcast Frames

Number of frames transmitted that are broadcast traffic

RTS Fail Counter

Number of RTS transmissions that did not result in transmitted frames

ACK Fail Counter

Number of failed acknowledgements by the AP

Retries Counter

Number of frames that were retransmitted

Multiple Retries Counter

Number of frames for which retransmission was attempted

Failed Retries Counter

Number of frames without acknowledgements

Tx Timeout Counter

Number of frames that could not be retransmitted due to timeout

Other Fail Counter

Number of frames with failed transmission due to other causes

Success Counter

Number of frames transmitted successfully

Max Retry Limit Counter

Number of times the maximum retry limit was reached

Tx Statistics (Voice)

Tx OK Frames

Number of frames transmitted with successfully

Tx Error Frames

Number of frames transmitted with errors

Tx Unicast Frames

Number of frames transmitted that are unicast traffic

Tx Multicast Frames

Number of frames transmitted that are multicast traffic

Tx Broadcast Frames

Number of frames transmitted that are broadcast traffic

RTS Fail Counter

Number of RTS transmissions that did not result in transmitted frames

ACK Fail Counter

Number of failed acknowledgements by the AP

Retries Counter

Number of frames that were retransmitted

Multiple Retries Counter

Number of frames for which retransmission was attempted

Failed Retries Counter

Number of frames without acknowledgements

Tx Timeout Counter

Number of frames that could not be retransmitted due to timeout

Other Fail Counter

Number of frames with failed transmission due to other causes

Success Counter

Number of frames transmitted successfully

Max Retry Limit Counter

Number of times the maximum retry limit was reached


Network Statistics

The Network Statistics section provides information about network traffic. Table 9-2 describes the IP, TCP, and UDP traffic.

Table 9-2 Network Statistics Screen Items 

Item
Description
IP Statistics

IpInReceives

Number of input datagrams received from interfaces including those received in error

IpInHdrErrors

Number of input datagrams discarded due to errors in IP headers

IpInAddrErrors

Number of input datagrams discarded because IP address in header destination field was not valid

IpInForwDatagrams

Number of input datagrams that were forwarded to another IP destination

IpInUnknownProtos

Number of datagrams discarded because of an unknown or unsupported protocol

IpInDiscards

Number of input datagrams discarded for reasons other than errors, such as lack of buffer space

IpInDelivers

Number of input datagrams successfully delivered to IP user-protocols

IpInOutRequests

Number of IP datagrams supplied to IP in request for transmission; does not include IPForwDatagram count

IpInOutDiscards

Number of output datagrams discarded for reasons other than errors, such as lack of buffer space

IpInOutNoRoutes

Number of output datagrams discarded because no route found to transmit them to destination

IpInReasmTimeout

Maximum number of seconds which received fragments are held while awaiting reassembly

IpReasmReqds

Number of IP fragments received that need to be reassembled

IpInReasmOKs

Number of IP fragments successfully reassembled

IpInReasmFails

Number of IP fragment reassembly failures

IpInFragOK

Number of IP datagrams that have been successfully fragmented

IpInFragFails

Number of IP datagrams that were discarded because they could not be fragmented

IpInFragCreates

Number of IP datagram fragments generated

TCP Statistics

TcpRtoAlgorithm

Determines timeout value used for retransmitting unacknowledged octets

TcpRtoMin

Minimum value for retransmission timeout in milliseconds

TcpRtoMax

Maximum value for retransmission timeout in milliseconds

TcpMaxConn

Number limit for total TCP connections that are supported; if dynamic, displays value of -1

TcpActiveOpens

Number of times TCP connections made a transition to SYN-SENT state from CLOSED state

TcpPassiveOpens

Number of times TCP connections made a transition to SYN-RCVD state from LISTEN state

TcpAttemptFails

Number of times TCP connections made a transition to CLOSED state from SYN-SENT or SYN-RCVD state, plus number of times transitioned to LISTEN state from SYN-RCVD state

TcpEstablishResets

Number of times TCP connections made a transition to CLOSED state from either ESTABLISHED or CLOSE-WAIT state

TcpCurrEstab

Number of times TCP connections for which the current state is either ESTABLISHED or CLOSE-WAIT state

TcpInSegs

Number of segments received including those in error on current connections

TcpOutSegs

Number of segments sent including those on current connections; excludes segments containing only retransmit octets

TcpRetransSegs

Number of TCP segments transmitted containing previously transmitted octets

TcpInErrs

Number of segments with bad TCP checksum

TcpOutRsts

Number of TCP segments sent containing RST flag

UDP Statistics

UdpinDatagrams

Number of UDP datagrams delivered to UDP users

UdpNoPorts

Number of received UDP datagrams for which there was not application at the destination port

UdpInErrors

Number of received UDP datagrams not delivered for reasons other than no application at port

UdpOutDatagrams

Number of datagrams sent


Stream Statistics

The Stream Statistics menu provides information about two types of streaming. The first stream is RTP Statistics and the second stream is Voice Quality Metrics. Table 9-3 description each field displayed in the Stream Statistics window.

Table 9-3 Stream Statistics Items 

Item
Description
RTP Statistics

Domain Name

Domain of the phone

Remote Port

Port number of the destination

Local Port

Port number of the phone

Receiver Joins

Number of times the phone has started receiving a stream

Host Name

Host name for the phone

Sender Packets

Number of RTP voice packets transmitted since voice stream was opened

Note This number is not necessarily identical to the number of RTP voice packets transmitted since the call began because the call might have been placed on hold.

Sender Tool

Type of audio encoding used for the stream: G.729, G.711 u-law, G.711 A-law, or Lin16k

Sender Report Time

Internal time stamp indicating when this streaming statistics report was generated

Receiver DSCP
(Previous, Current)

DSCP markings display for rx and tx packets. EF is always used unless Cisco Unified Communications Manager Administration configuration changes.

Receiver Octets

Total number of octets received by the phone

Receiver Lost Packets

Number of missing RTP packets (lost in transit)

Receiver Reports

Number of times this streaming statistics report has been accessed from the web page (resets when the phone resets)

Voice Quality Metrics

MOS LQK

Score that is an objective estimate of the mean opinion score (MOS) for listening quality (LQK) that rates from 5 (excellent) to 1 (bad). This score is based on audible concealment events due to frame loss in the preceding 8-second interval of the voice stream. For more information, see the "Monitoring the Voice Quality of Calls" section

Note The MOS LQK score can vary based on the type of codec that the Cisco Unified IP Phone uses.

Min MOS LQK

Lowest MOS LQK score observed from start of the voice stream

MOS LQK Version

Version of the Cisco proprietary algorithm used to calculate MOS LQK scores

Interval Conceal Ratio

Ratio of concealment frames to speech frames in preceding 3-second interval of active speech. If using voice activity detection (VAD), a longer interval might be required to accumulate 3 seconds of active speech

Conceal Secs

Number of seconds that have concealment events (lost frames) from the start of the voice stream (includes severely concealed seconds)


Related Topic

Monitoring the Voice Quality of Calls