User's Manual

2. System Description 2-18

or four links when operating as 2+0 or 4+0, allowing for a total throughput of up to 600

Mbps or 1000 Mbps, respectively.

Table 2-9. GigE Ethernet Throughput Examples by Modulation & Bandwidth

Bandwidth/Modulation 30MHz 40MHz 50MHz 56MHz

QPSK 30 Mbps 45 Mbps 55 Mbps 60 Mbps

16-QAM 80 Mbps 100 Mbps 130 Mbps 160 Mbps

32-QAM 100 Mbps 130 Mbps 160 Mbps 200 Mbps

64-QAM 125 Mbps 160 Mbps 200 Mbps 250 Mbps

128-QAM 150 Mbps 200 Mbps 250 Mbps 300 Mbps

2.11.1 GigE Port Based VLAN

The Gigabit Ethernet Port Based VLAN configures the EVENT 5800 to provide two

independent Gigabit Ethernet networks with aggregate data rate up to 300Mbps. In this

mode the Gigabit Master I/O module ports 1 and 2 are allocated to Network #1 and ports

3 and 4 are allocated to Network #2. The SFP port can be assigned to either network.

Each network will be allocated a guaranteed bandwidth which is configured as part of the

modes file. This capability is only available when operating as 1+0 or 1+1 and is not

available when operating as 2+0.

Figure 2-19. GigE Port Based VLAN

2.12 Ethernet Quality of Service (QoS)

EVENT 5800 provides for Ethernet Quality of Server (QoS) configuration. Incoming

packets are assigned to a weighted priority queue based on one or more of the following

criteria:

 Incoming Port: Packets are assigned to a priority queue based on the port the

packet arrived on.

 802.1Q VLAN Tag Priority: Packets are assigned to a priority queue based on the

priority tag field in the VLAN TAG.

 IPv4 TOS: Packets are assigned to a priority queue based on the TOS field in the

IPv4 header (not available with GigE Master I/O or Enhanced Master I/O)

 DiffServ: Packets are assigned to a priority queue based on the value of the DS field

of the IPv4 header (not available with GigE Master I/O or Enhanced Master I/O)