3 – Planning
Performance
59021-05 A
3-7
3.3.2
Bandwidth
Bandwidth is a measure of the volume of data that can be transmitted at a given
transmission rate. A port can transmit or receive at 1 Gbps or 2 Gbps depending
on the device to which it is connected. The switch supports all transmission rate
combinations as shown in
Table 3-1
.
In multiple chassis fabrics, each link between chassis contributes 100 or 200
megabytes of bandwidth between those chassis. When additional bandwidth is
needed between devices, increase the number of links between the connecting
switches. The switch guarantees in-order-delivery with any number of links
between chassis.
3.3.3
Latency
Latency is a measure of how fast a frame travels from one port to another. The
factors that affect latency include transmission rate and the source/destination
port relationship as shown in
Table 3-2
.
Table 3-1. Port-to-Port Transmission Combinations
Source Port Rate
Destination Port Rate
Maximum Bandwdith
1 Gbps
1 Gbps
100 MB
1 Gbps
2 Gbps
100 MB
1 Gbps x 2 ports
2 Gbps
200 MB
2 Gbps
1 Gbps x 2 ports
100 MB each port
1
1
Bandwidth will be less for larger sequence sizes.
2 Gbps
2 Gbps
200 MB
Table 3-2. Port-to-Port Latency
Source/Destination Rates
Same Switch
1 Gbps - 1 Gbps
< 1 µsec
2 Gbps - 2 Gbps
< 0.5 µsec
Summary of Contents for SANbox2-16 Fibre Channel
Page 1: ...S i m p l i f y 59021 05 A Page i SANbox2 16 Fibre Channel Switch Installation Guide ...
Page 18: ...1 Introduction Technical Support 1 10 59021 05 A Notes ...
Page 30: ...2 General Description Switch Management 2 12 59021 05 A Notes ...
Page 42: ...3 Planning Fabric Security 3 12 59021 05 A Notes ...
Page 82: ...6 Removal Replacement Fans 6 6 59021 05 A Notes ...
