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Advantage and disadvantage of DWDM.
written
5.1 years ago
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teamques10
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64k
• modified 4.7 years ago
advanced networking technologies
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written
5.1 years ago
by
teamques10
★
64k
• modified 4.7 years ago
Advantage
Every wavelength is independent of others
Optical amplifier can act on all wavelengths, providing cost savings over a single amplifier per fiber.
The capability to support 160 wavelengths means that over 1Tbps of traffic can be used.
Each wavelength can be a different traffic type such as SONET, gigabit, Ethernet or IP can be operated at different speeds.
This provides Bandwidth and protocol flexibility with payload efficiency.
Disadvantage
Some fiber plants are not suitable for DWDM
Vendor Inter-operability issues exist
DWDM systems can be extremely difficult to troubleshoot, manage and provision.
Service providers typically run SONET over DWDM to utilize SONETS’s network management capabilities but DWDM equipment’s need to be managed.
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