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We have realized our NGN concept by a QoS enhanced LINUX implementation
at a testbed consisting of an IEEE802.11b compatible WLAN with Mobile IPv4
as network and standard TCP as transport layer (cf. ).
The WLAN is created by Lucent's WaveLAN products running in the ISM band
at about 2.4 GHz (cf. ,
) and the QoS-support schemes
at the flow and packet levels, e.g. packet classifier, class-based, priority
and FIFO queueing and token-bucket shaper are provided by the LINUX enhancements
(cf. , ).
Realization of our concept in a wireless LAN
The network structure is shown in Figures 7 and 8 (see also 9).
It comprises two overlapping microcells that are generated by two access points (APs), i.e. Lucent's WavePOINTS, with two foreign agents running on the hosts Aldebaran (126.96.36.199/188.8.131.52) and Orion (184.108.40.206/220.127.116.11), the home network 18.104.22.168/24, the corresponding home agent at the host Deneb (22.214.171.124), the mobile nodes (MNs) Merkur (126.96.36.199) and Uranus (188.8.131.52) and the correspondent host Sirius (184.108.40.206).
- Description of the testbed
- Performance analysis of the mobility and resource management in the WLAN
Next: Description of the testbed Up: Mobility and QoS-Management for Previous: Details of our QoS-management