Installation Guide

Table Of Contents
The following table shows the high speed switch fabric modules that are available for MLX Series routers. For a detailed compatibility
matrix of which fabric modules can be used with which router congurations, refer to the Release Notes for your software release.
TABLE 24 High speed switch fabric modules available for MLX Series routers
Part number Description
NI-X-4-HSF High speed switch fabric module for 4-slot routers
NI-X-16-8-HSF High speed switch fabric module for 8- and 16-slot routers
NI-X-32-HSF High speed switch fabric module for 32-slot routers
Switch fabric modules switch packets from one interface module to another. MLX Series routers can be congured with multiple switch
fabric modules, and described as follows:
4-slot router: Accommodates three switch fabric modules (two required and one redundant) for a fully-loaded system. Ships
with two switch fabric modules. You must purchase an additional switch fabric module to equip your router for redundancy.
8-slot router: Accommodates three switch fabric modules (two required and one redundant) for a fully-loaded system. Ships
with two switch fabric modules. You must purchase an additional switch fabric module to equip your router for redundancy.
16-slot router: Accommodates four switch fabric modules (three required and one redundant) for a fully-loaded system. Ships
with three switch fabric modules. You must purchase an additional switch fabric module to equip your router for redundancy.
32-slot router: Accommodates eight switch fabric modules. MLX Series routers ship with seven fabric modules. You must
purchase an additional switch fabric module to equip your MLX Series router for redundancy.
NOTE
MLX Series router switch fabric modules are dedicated, which means that they function properly in these routers only. If you
attempt to install a MLX Series router switch fabric module in another Extreme device or a switch fabric module intended for
another Extreme device in a MLX Series router, the router and switch fabric module will not function properly.
The front panel contains two LEDs.
FIGURE 20 Switch fabric module front panel
TABLE 25 Switch fabric module LEDs
Pwr Above Active LED On The module is receiving power.
O The module is not receiving power.
Active Below Pwr LED On(4-, 8-, and 16-slot
routers only)
The switch fabric is on (active) and ready to switch user
packets.
Blinking (32-slot routers
only)
The switch fabric is on (active) and being accessed by the
Management Module CPU. This indicates normal
operation.
MLX Series router modules
Extreme Routing MLX Series Hardware Installation Guide
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