Installation guide

3 – Planning

Feature Licensing

59096-06 A 3-5

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 3-3.

Feature Licensing

License keys provide a way to expand the capabilities of your switch and fabric as

your needs grow. Consider your need for the following features and arrange to

purchase license keys from your switch distributor or authorized reseller.

 Enterprise Fabric Suite 2007 provides access to the Enterprise Fabric Suite

2007 application. Enterprise Fabric Suite 2007 is a graphical user interface

designed to provide comprehensive fabric management for fabrics of four or

more switches. This license enables you to install and use Enterprise Fabric

Suite 2007 on an unlimited number of workstations.

Table 3-3. Port-to-Port Latency

Destination Rate

Source Rate

Gbps 2 4 8 10

1 < 0.6 µsec

< 0.8 µsec

Based on minimum frame size of 36 bytes. Latency increases for larger frame sizes.

< 0.8 µsec

2 < 0.5 µsec < 0.4 µsec

< 0.4 µsec

4 < 0.4 µsec < 0.3 µsec < 0.3 µsec

< 0.3 µsec

10 < 0.4 µsec < 0.3 µsec < 0.3 µsec < 0.2 µsec

NOTE:

License keys enable menu selections in Enterprise Fabric Suite 2007 and

commands and keywords in the CLI. License keys do not affect the

capabilities of the QuickTools web applet.