Brocade MLXe Series Hardware Installation Guide 29
53-1003030-01
Router modules
1
• All fabric facing links on the 4x40G, 2x100G and 24x10G TMs will have FEC enabled
• hSFM links connected to 4x40G, 2x100 and 24x10 will have FEC enabled
Forward Error Correction (FEC) on Backplane Serdes Links
The operating margin of the longer backplane traces in the Brocade MLXe series 16Ke and 32Ke
chassis may be reduced due to signal attenuation. In the normal coding scheme (8b/10b), CRC
errors are detected and the corrupt packets are dropped. With FEC enabled on the serdes links,
single burst errors can be corrected on the fly so packet drops are avoided.
Line Module Shutdown
Line Module Shutdown is an RAS feature that improves reliability of the XMR/MLX chassis. The LP
card is shutdown when both MPs are down or MP's are disconnected from the chassis. L2 and L3
traffic is stopped, and the router stops forwarding all traffic. Hardware flooding and dropping
control traffic required for processing by the router is thereby avoided.
Switch fabric modules
Table 15 lists all switch fabric modules that are available for Brocade MLXe routers. For a detailed
compatibility matrix of which fabric modules can be used with which router configurations, refer to
the relevant Release Notes.
Table 16 lists all switch fabric modules that are available for Brocade MLXe routers. For a detailed
compatibility matrix of which fabric modules can be used with which router configurations, refer to
the relevant Release Notes.
TABLE 15 Switch fabric modules available for Brocade MLXe routers
Part number Description
NI-X-SF1 Switch fabric module for 4-slot routers
NI-X-SF3 Switch fabric module for 8- and 16-slot routers
NI-X-32-SF Switch fabric module for 32-slot routers
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
TABLE 16 Switch fabric modules available for Brocade MLXe 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
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