Extreme 3802 Installation Guide

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Extreme Networks Consolidated "i" and "e" Series Hardware Installation Guide

Table 37 describes the media types and the associated maximum distances for the GM-16X

3

 module.

Each of the 16 ports in the GM-16X

3

 is capable of supporting up to a full gigabit of traffic with a 

maximum module throughput of 4 Gigabits to the Alpine backplane. When a GM-16X

3

 is operational in 

an Alpine 3808, and five or more ports of ports 1 through 8 or ports 9 through 16 are simultaneously 
forwarding unusually high rates of small, uniformly sized packets (for example, 64 Byte), the 
bandwidth through each port can be lower than the expected minimum of 250 Mbps. 

When you install and configure a GM-16X

3

 module, Extreme Networks does not recommend using the 

port-based load-sharing (link-aggregation) algorithm when the share has more than four ports because 
traffic coming from the GM-16X

3

 or GM-16T

3

 modules will only load-share over the first four ports of 

the share. Load-sharing using other load balancing algorithms can have up to eight links.

The GM-16X

3

 module supports any of the following mini-GBICS:

SX mini-GBIC

LX mini-GBIC

ZX mini-GBIC

For more information about the supported mini-GBIC types, see “Mini-GBIC Types” on page 23.

The GM-16X

3

 module has the following LEDs:

Module status

Port status

For information about the LEDs and their activity on the GM-16X

3

 module, see “I/O Module LEDs” on 

The GM-16X

3

 module requires ExtremeWare version 7.0.1b11 or later and BootROM 7.8 or later on the 

switch.

Table 37: GM-16X

3

 media types and distances

1000BASE-SX

multimode fiber

550 

1000BASE-LX

single-mode fiber

10,000

1000BASE-ZX

single-mode fiber

70,000