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lookafterpp


lookafterpp
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www.3anetwork.com
Cisco networking products, Cisco switches, Cisco routers

Huawei Optical Transmission SDH from Blueprint to Application



Synchronous Digital Hierarchy Overview

As IP networks are maintained and operated in a different way from Huawei SDH/MSTP networks.Carrier-class O&M requires visibility into the mysterious “cloud”, just like they do with traditional SDH/MSTP networks. This represents a big step forward in the shift from passive to proactive O&M.
 
In traditional SDH/MSTP-based bearer, factors affecting the QoS were relatively simple, and focus of operators was on network elements (NEs) and wireless coverage.
 
OTN introduction into an SDH network presents huge O&M challenges; the O&M workload increases significantly.
 
First, OTN devices themselves are more complicated. A piece of SDH equipment is basically a box of optical-fiber connections, making its O&M more easy.
 
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Huawei S5700-52C-PWR-SI VS Huawei S5700-28C-PWR-EI

S5700-52C-PER-SI are 48ports and energy-saving switches developed to meet the demand for high-bandwidth access and Ethernet multi-service aggregation. Based on cutting-edge hardware and Huawei Versatile Routing Platform software, the S5700 provides a large switching capacity and high-density GE ports to accommodate 10 Gbit/s upstream transmissions. The S5700 can be widely used in enterprise network.
 
S5700-52C-PWR-SI Datasheet
Forty-eight 1000/100/10 Base-T ports
Subcards supported: 4x1000 Base-X SFP subcard, 2x10GE SFP+subcard
Double hot swappable power supplies
USB port
Forwarding performance: 132 Mpps
 
S5700-28C-PWR-EI Datasheet
Twenty-four 1000/100/10 Base-T ports
Subcards supported: 4x1000 Base-X SFP subcard, and 2x10GE SFP+ subcard
Double hot swappable AC power supplies
POE+
Forwarding performance: 96 Mpps
 

Huawei...  Read More

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How to Troubleshoot Device Slots’ Problem for Huawei S7700

Issue Description
Facing issue in S7706 cores witch when we are checking device slots, its showing unregistered rest all slots are registered
Serial #: 2012113307TE4900081
Model #S7706

Alarm Information
Asked customer for diplay diag output and figured out that slot no 4 is unregistered :

S7706's Device status:
Slot  Sub Type         Online    Power      Register       Status     Role 
-------------------------------------------------------------------------------
2     -   ES0DG24TFA00 Present   PowerOn    Registered     Normal     NA   

4     -   -            Present   PowerOn    Unregistered   -          NA   
5     -   ES1D2X08SED4 Present   PowerOn    Registered     Normal     NA   
...  Read More

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