Extreme Networks Summit 200-24, Руководство по установке оборудования

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Configuring I/O Modules
Extreme Networks Consolidated "i" and "e" Series Hardware Installation Guide 189
GM-16T
3
Module
Figure 104 shows the GM-16T
3
module.
Figure 104: GM-16T
3
module
The GM-16T
3
module has 16 10/100/1000BASE-T ports using RJ-45 connectors that autonegotiate for
10BASE-T, 100BASE-T, or 1000BASE-T.
The GM-16T
3
ports are oversubscribed 4:1 to the Alpine backplane. The module has four groups of four
ports each. Each group multiplexes traffic into a single full-duplex gigabit link to the switch fabric.
To take advantage of this architecture, use a single port in each group before using all of the ports in
any particular group. Table 38 lists the port groups for the GM-16T
3
module.
Populate ports 1, 5, 9, and 13; then ports 2, 6, 10, and 14; then ports 3, 7, 11, and 15; and finally ports 4,
8, 12, and 16.
NOTE
If congestion is detected on a port with flow control enabled, a flow control PAUSE frame is sent out
that port. The PAUSE frame is not sent out on the other ports in the group.
Table 39 lists the number of GM-16T 3 modules you can install in an Alpine chassis.
Table 38: GM-16T
3
port groups
Ports Group
1, 2, 3, 4 1
5, 6, 7, 8 2
9, 10, 11, 12 3
13, 14, 15, 16 4
Table 39: GM-16T 3 configurations supported
Chassis GM-16T
3
Modules
Alpine 3802 1 (or 1 GM-16X 3 module),
installed in slot 1 or slot 2 only
Alpine 3804 4
Alpine 3808 8
GM16T3
Port status LEDs
Module
status LED
RJ-45 connector ports