Ethernet QoS is defined in IEEE 802.1p and relies on the VLAN tag framing structure as defined in IEEE 802.1q.
Therefore, the 3 avaiable user priority bits for marking priorities from 0 .. 7 are only available, if tagged ports are offered on the
IXPs switching platform.
Furthermore, switching can consist of several switches being organized in hierachical structures and may use transparent VLAN mapping
internally. This however, could lead to a priority marking reset and prohibit reliable marking transfers across the platform.
Lastly, IXP operators can configure their switches to perform 802.1p queueing and scheduling or opt for a best effort only relay even of
VLAN tagged Ethernet frames.
If such queueing and scheduling is enabled, it is important to note, how many queues are consistently supported between input and output ports.
Legend:
| Name | Name of the Internet Exchange Point |
| URL | Home of the Internet Exchange Point |
| VLAN | VLAN tagged ports are offered on request |
| VLAN Prio | VLAN user priority bit markings are transparently transfered across the platform |
| IEEE 802.1p | Ethernet class of service queueing and scheduling is enabled |
| Queues | Number of consistently supported queues between input and output ports |
| Details | Single view of IXP details including contact details for QoS interested peers |
-> Register as new QoS capable IXP
| Name | URL | VLAN | VLAN Prio | IEEE 802.1p | Queues | Details |
| DE-CIX | http://www.de-cix.net/ | X | X | 802.1p support on request + non-blocking line-rate switching | 8 | Details |
| AMS-IX | http://www.ams-ix.net/ | X | X | 802.1p support + non-blocking line-rate switching | 4 (7 later in 2009) | Details |
| Sitemap | Impressum |