Hardware Component Monitoring
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Traffic Limitations in Mixed Environments.....................................................................217
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Virtual cable testing.......................................................................................................217
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Digital optical monitoring............................................................................................... 220
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FastIron Fiber-optic Transceivers................................................................................. 225
Traffic Limitations in Mixed Environments
Packet loss can occur in environments that mix SX hardware modules of different generations.
The following table lists the modules by generation:
SX Hardware Generations
TABLE 27
First
Second
Third
SX-FI2XGMR4
SX-FI2XGMR6
SX-FI48GPP
SX-FI2XGMR4-PREM
SX-FI2XGMR6-PREM
SX-FI-2XG
SX-FI424100FX
SX-FI2XGMR6-PREM6
SX-FI-8XG
SX-FI42XG-BNDL-2CX4
SX-FI624100FX
SX-FI-24HF
SX-FI424C
SX-FI624C
SX-FI-24GPP
SX-FI424P
SX-FI624HF
SX-FI424F
SX-FI624P
SX-FI424HF
SX-FI62XG
SX-FI42XG
Throughput is 100 percent when only SX third-generation modules are used.
Virtual cable testing
Most FastIron devices support Virtual Cable Test (VCT) technology. VCT technology enables the
diagnosis of a conductor (wire or cable) by sending a pulsed signal into the conductor, then examining
the reflection of that pulse. This method of cable analysis is referred to as Time Domain Reflectometry
(TDR). By examining the reflection, the Brocade device can detect and report cable statistics such as
local and remote link pair, cable length, and link status.
FastIron Ethernet Switch Administration Guide
217
53-1003625-01