Fore Systems ES-2810 - Latency

FORE Systems ES-2810 Ethernet Switch User’s Manual
A - 5
Concepts in Switching
Concepts in Switching
A.1.10 Latency
Delays depend on the forwarding mode:
Table A.2 -
Latency Periods for Forwarding Modes
Cut-through Fragment-free Store-and-forward
Min. Latency
(in microsec.)
Low
(10 Mbit is < 30
100 Mbit is < 11)
Medium
(< 60)
High
(Depends on packet
size)
Amount of packet
read
14 bytes:
Destination address +
Source address
+ Type/Length field)
64 bytes
(IEEE 802.3)
All
(CRC)
Error detection None Runts All
Suitable for One user per port.
Light loads.
Applications requiring
low latency forwarding.
Many users on one
connection.
Congested net-
works.
Communication with
higher-speed networks.
A port with many
errors.