
What are we facing?
• Waste cost of cables, connectors, and DDF
• Waste cost of rack space
• Not easy to check and manufacture so many cables
• Not easy to manage PDH multiplexer from SDH ring
• PDH and SDH managements are in deferent NMS software
• Ethernet access on MSTP can not reach remote branch on customer’s site
• There is no Ethernet fiber optical ports on my SDH equipments
• How can we aggregate Ethernet traffic by VLAN without Ethernet Switch in
SDH ring
• Non-protection in current PDH fiber links
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