User's Manual

7. Specifications 7-3
© 2012 Moseley, Inc. All Rights Reserved. 602-16620-01, Rev. A
Table 7-1. 100 Base TX Ethernet % Nominal Throughput
Frame
Size
10Mbps
Through
put
50Mbps
Through
put
100Mbps
Through
put
150Mbps
Through
put
200Mbps
Through
put
250Mbps
Through
put
300Mbps
Through
put
64 106.3% 106.0% 100.0% - - - -
128 103.4% 102.6% 100.0% - - - -
256 100.0% 101.4% 99.8% - - - -
512 100.0% 100.4% 99.8% - - - -
1024 100.0% 100.3% 99.9% - - - -
1280 99.9% 100.3% 100.0% - - - -
1518 99.9% 100.2% 100.0% - - - -
*Rates above 100Mbps are only possible with GigE card
Table 7-2. 100 Base TX Ethernet Latency (msec)
Frame Size 10Mbps
Data Rate
50Mbps
Data Rate
100Mbps
Data Rate
150Mbps
Data Rate
200Mbps
Data Rate
250Mbps
Data Rate
300Mbps
Data Rate
64 3.25 0.718 0.377 - - - -
128 3.32 0.73 0.407 - - - -
256 3.42 0.75 0.437 - - - -
512 3.67 0.8 0.469 - - - -
1024 4.19 0.89 0.559 - - - -
1280 4.3 0.931 0.621 - - - -
1518 4.64 0.973 0.725 - - - -
*Rates of above 100Mbps are only possible with GigE card
Packet Size for Standard & Enhanced Master I/O: Min = 64 bytes, Max = 1536
bytes
VLAN Support: VLAN tagged packets are passed through without modification. Port
based VLANs are supported, but not user-configurable as they are used to implement
155FE and Port-based VLAN modes. EVENT 5800 uses VLAN TAG Priority (802.1Q-203
Section 9 Tagged Frame Format) for QoS.
Operation Full duplex / Half Duplex / Auto sensing: Auto Sensing and manual
configuration
Support for routing: Support for IP based routing is not provided at this time
Quality of Service (QoS): QoS is implemented using weighted priority queues.
Incoming packets are assigned to a priority queue based on one or more of the following
criteria:
 Incoming Port: port based priority allows assignment 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 VLAG TAG
 IPv4 TOS (Standard Master I/O & Enhanced Master I/O only): packets are assigned to
a priority queue based on the TOS field in the IPv4 header
 DiffServ (42xE1/T1 Master I/O only): packets are assigned to a priority queue based
on the value of the DS field of the IPv4 header (the DS field is the redefined IPv4 TOS
field)