Week 5 6 ILAB SriLakshmi
Week 5/6 iLab Report
SriLakshmi Avireneni
DeVry University
MIS589: Networking Concepts and Applications
MIXED 11B/11G WLAN PERFORMANCE
Submitted to: David Apaw
Professor: Name of your professor
Date: 4/12/2015
Mixed 11b/11g WLAN Performance
1. In your opinion, what is the purpose of our dropping the transmit power to such a low level?
I believe having 1 node or just a few nodes would be accessing this access point. With dropping the power output will help increase stability if there is a lot of interference with outside noise. This node might not need the extra performance or the extra distance a higher transmit power would generate.
2. What do access point connectivity statistics collected for the roaming station show?
The Access Point Connectivity statistics collected show that the data remains the same. AP Connectivity remained constant throughout the 30 seconds of the simulation.
3. What do you think the Wireless LAN control traffic received by the roaming 11b node when it is in the engineering building is composed of?
According to the lab help files it contains random outcomes for the size of generated packets (specified in bytes)
4. How much did our roaming node reduce the total throughput in our heavily loaded WLAN?
When the simulation started, throughput was at 25,500,000 bits/sec. At 13 seconds which is when the roaming node entered the engineering building, throughput dropped to about 21,600,000 bits/sec at a loss of 3,900,000 bits/sec. At it left (at around 18 seconds), throughput went up to 25,500,000 bits/sec.
5. What caused this reduction in “goodput” on the 11g WLAN?
The interference of the roaming node most likely caused it as we see the throughput drop when it enters the range of the 11g WLAN.
6. Supposedly, 802.11b is “backwards compatible” with 802.11g, yet this lab demonstrates there are significant problems with allowing the two to coexist. What is the primary “incompatibility” between b and g?
An 802.11b
SriLakshmi Avireneni
DeVry University
MIS589: Networking Concepts and Applications
MIXED 11B/11G WLAN PERFORMANCE
Submitted to: David Apaw
Professor: Name of your professor
Date: 4/12/2015
Mixed 11b/11g WLAN Performance
1. In your opinion, what is the purpose of our dropping the transmit power to such a low level?
I believe having 1 node or just a few nodes would be accessing this access point. With dropping the power output will help increase stability if there is a lot of interference with outside noise. This node might not need the extra performance or the extra distance a higher transmit power would generate.
2. What do access point connectivity statistics collected for the roaming station show?
The Access Point Connectivity statistics collected show that the data remains the same. AP Connectivity remained constant throughout the 30 seconds of the simulation.
3. What do you think the Wireless LAN control traffic received by the roaming 11b node when it is in the engineering building is composed of?
According to the lab help files it contains random outcomes for the size of generated packets (specified in bytes)
4. How much did our roaming node reduce the total throughput in our heavily loaded WLAN?
When the simulation started, throughput was at 25,500,000 bits/sec. At 13 seconds which is when the roaming node entered the engineering building, throughput dropped to about 21,600,000 bits/sec at a loss of 3,900,000 bits/sec. At it left (at around 18 seconds), throughput went up to 25,500,000 bits/sec.
5. What caused this reduction in “goodput” on the 11g WLAN?
The interference of the roaming node most likely caused it as we see the throughput drop when it enters the range of the 11g WLAN.
6. Supposedly, 802.11b is “backwards compatible” with 802.11g, yet this lab demonstrates there are significant problems with allowing the two to coexist. What is the primary “incompatibility” between b and g?
An 802.11b