Installation guide

BlackDiamond 20808 Switch Modules
BlackDiamond 20808 Switch Hardware Installation Guide
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BlackDiamond GM-40XA and GM-40XB I/O Modules
The GM-40XA and GM-40XB modules (Figure 5) have forty unpopulated SFP-based Gigabit Ethernet
ports. The GM-40XA (advanced) module supports up to 1 million MAC addresses and IP routes. The
GM-40XB (basic) module supports up to 512K MAC addresses and IP routes. Both modules have the
same physical features.
Figure 5: GM-40XA/GM-40XB Module
In the default configuration for the GM-40XA/GM-40XB modules, all ports:
● Are added to the default VLAN as untagged.
● Inherit the properties of the default VLAN (for example, protocol type and VLAN ID).
The GM-40XA/GM-40XB modules have the following LEDs:
● Module status (STAT)
● Module diagnostics (DIAG)
● Port status
For information about the LEDs and their activity on the GM-40XA/GM-40XB modules, see “I/O
Module LEDs” on page 24. For information about the SFP modules, see the Extreme Networks Pluggable
Interface Modules Installation Guide.
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