User guide
Release9.5ReleaseNotes
Issue2,October2009 Page40
Table 9: Previous notes
ID Description Discussion and Recommendations
- Changes to
boxTemperature
OIDs
Starting with Release 9.4 the boxTemperature (1.3.6.1.4.1.161.19.3.3.1.5)
OID (which returned an octet string value) is no longer valid. Two new OIDS
which return integer values are added:
boxTemperatureC
Object ID: 1.3.6.1.4.1.161.19.3.3.1.35
Syntax: INTEGER
Access: read-only
Status: current
Radio temperature in Celsius.
boxTemperatureF
Object ID: 1.3.6.1.4.1.161.19.3.3.1.36
Syntax: INTEGER
Access: read-only
Status: current
Radio temperature in Fahrenheit.
10263 Disable TCP ACK
prioritizing in
broadcast video
applications
When optimizing a system for broadcast video, on the AP’s Configuration =>
General page configure Prioritized TCP ACK to Disabled.
In a system being used for internet access or similar applications prioritizing
TCP ACKs improves downloading of FTP files and other activities making
significant use of TCP ACKs under heavy load. However, in a system being
used for broadcast video or video surveillance, prioritizing TCP ACKs can
cause sporadic choppy video in the uplink.
9574 5.4-GHz OFDM
BHs may see a
600 kbps
reduction in uplink
or downlink
throughput
Guard times in the OFDM PTP scheduler were increased slightly, changing
the ranges at which time slots are lost to air delay. Depending on the
distance between BHs and the configured Downlink Data %, this may or
may not affect a given installation. For example, at 0 miles and 50%
Downlink Data the uplink/downlink slots change from 33/33 in Release 8.4.3
to 33/32 with Release 9.4.2, resulting in 600 Mbps less downlink throughput.
However, at 3 miles the slots are 32/32 for both Release 8.4.3 and Release
9.4.2 resulting in no change in throughput between the releases.
- More accurate
Received Power
readings for P10
900-MHz radios
For P10 900-MHz radios, Release 9.4 included improvements in the
accuracy of the displayed Received Power based on improvements in
temperature measurement. The displayed Received Power may be lower or
higher than for the same radio running a previous release. The actual
performance of the radio has not changed. With this accuracy improvement,
P10 900-MHz radios should see less variation of displayed Received Power
over time (as temperature changes) and from radio to radio.
8484 Procedures for
saving an XML file
of a spectrum
graph
When the SpectrumAnalysis.xml button is clicked on the SM’s Tools =>
Spectrum Analyzer page or the AP’s Tools => Remote Spectrum Analyzer
page, the spectrum graph is redisplayed using XML and XSL if the browser
supports XSL. To save the underlying XML file, right click and select “Save
Target As” on a Windows PC, or equivalent action for other operating
systems.
8172 SM scan
frequencies not
“cancelled” by
SNMP actions
If you make frequency changes on the SM GUI, and then back them out
using SNMP, the Reboot Required message remains on the GUI.
Workaround:
If it says Reboot Required, go ahead and reboot, just to clear the message.