03 - osn equipment
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Hardware (OSN 3500)
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OSN3500
Huawei NGSDH series
OSN stands for Optical Switch Node
Intelligent (support ASON)
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OSN 3500 Intelligent Features
Service level agreement (SLA)
Topology automatic discovery function
Automatic end-to-end service configuration
Support mesh networking and protection
Traffic engineering
Supports RPR
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Sub rack with Boards (OSN3500)
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Cabinet Indicators
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Subrack
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Slot Access Capacity
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System Architecture
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Board Appearance and Dimensions
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Functions of SL64
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Optical Port Parameters
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SDH Boards
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Slots for SL64 & SF64
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PDH Boards with Slot Allocation
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PDH Board Function
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Alarms
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Ethernet Boards
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Ethernet Boards Slots
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Functions
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Features of EFS4 Supports bandwidth auto-sensing
Supports MPLS Supports LCAS
Supports Port based flow control
Supports receiving and transmitting Ethernet testing
frame Supports inloop at Ethernet port and inloop and outloop
at VC3 level
Supports port level Ethernet performance monitoring
Supports EPL/EPLAN/EVPL/EVPLAN services and QoS
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Indicators
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Ethernet Board Indicators
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Ethernet Unit Alarms
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Cross Connect & SCC Boards
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Capacity of Cross Connect Boards
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Cross Connect Unit Functions
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GSCC
Support NE ID setting by software
Supports 1+1 hot backup Supports 40 DCC
Processes Order-wire bytes
Controls cabinet indicators and intelligent fans Collects and monitors alarms and performance
events
Monitors power supply Supports ASON intelligent function
Inserted in slot 18 (Active) and/or Slot 17 (Standby
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SCC Unit Functions
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SCC Databases
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Summary
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Equipment and Network Protection
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TPS Protection
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Working Protection Relationship
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Ethernet Board Protection
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Equipment Protection Slots
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Equipment Protection Summary
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Network Protection Summary
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ETHERNET SERVICES OVER NGSDH
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Basic Concepts
PortExternal physical port of Ethernet unit, the
common rates of external port are 10M, FE,
GE and 10GE;
VC Trunk
Virtual Container Trunk, VC Trunk is built by
VC. It is the internal port of Ethernet unit.
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Tag Attributes
Tag flag is used to identify the type of frames. Three types of Tag attributes are available:
Tag aware
Access Hybrid
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Tag Aware: When the port is set to be Tag aware,
the port transmits the packets with the Tag flag
transparently and discards those without the Tag
flag;
Access: When the port is set to be Access, the port
attaches a Tag flag to the packets without Tag flagaccording to its VLAN ID and discards those with the
Tag flag;
Hybrid: When the port is set to be Hybrid, the port
can process packets regardless of the Tag flag and
attach a Tag flag to the packets without the Tag flag
according to its VLAN ID.
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E h S i
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Ethernet Services
E-Line EPL
EVPL
ELAN
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E-Line
Ethernet service that is based on a Point-to-Point
Ethernet Connection
An E-Line Service type can be used to create a
broad range of point-to-point services
E-Line Service type may be between twodifferent speed Customers
Service Multiplexing (sharing) MAY occur at
Ports and/or VC Trunks
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E-Line Service used to create
Ethernet Private Lines
Virtual Private Lines
Carrier EthernetNetwork
EPL
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EPL
Bandwidth exclusive
Services isolated
No sharing
Replaces a TDM Private line
Dedicated VCTrunks and Ports for Point-to-Pointconnections
The most popular Ethernet service due to its
simplicity
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EVPLEthernet Virtual Private Line (EVPL)
Supports sharing of multiple VC Trunks and/or Ports
Allows single physical connection/Port to
accommodate different customer traffic
Improve the bandwidth utilization ratio and save
the ports resource of Ethernet Unit
ISPPOP
P t Sh d EVPL
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Port Shared EVPL
VC Trunk Shared EVPL
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VC Trunk Shared EVPL
Challenge!
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Challenge!
What about if Different customers data withsame VLANID?
MPLS Basics
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MPLS Basics
MPLS
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MPLS
Multi-protocol Label Switching, standard routing
and switching platform;
Tunnel/VC: Two labels in MPLS, range of value
is 16～(220-1)
LSP: Label switching path, different value labelswill be given in different nodes, data can be sent
forward according these labels
P/PE: P (Provider) internal node of MPLS
network, PE (Provider Edge) the edge of MPLS
network
EVPL (MPLS)
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EVPL (MPLS)
Q in Q
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Q in Q
QinQ technology is a VLAN stacking technology
C-VLAN
S-VLAN
Advantages of QinQ technology:
Expands VLAN and alleviates VLAN resourceinsufficiency;
Extends LAN service to WAN, connecting the
client network to the carrier network andsupporting transparent transmission
EVPL (Qin Q)
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EVPL (Qin Q)
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Ethernet Service Types : E-LAN
E-LAN Service used to create
Multipoint to Multipoint
Transparent LAN Service
Foundation for IPTV and Multicast networks
etc.Carrier
EthernetNetwork
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Ethernet LAN (E-LAN) Service Type
Multipoint-to-Multipoint Ethernet VirtualConnection
Service Multiplexing sharing MAY occur at none,
one or more of the VC Trunks/Ports
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Services Using E-LAN Service Type
Ethernet Private LAN (EP-LAN) Ethernet Virtual Private LAN (EVP-LAN)
Supports dedicated or Shared services
Supports transparent LAN services and
multipoint Layer 2 VPNs
EPLAN
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EPLAN
VB/LP
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VB/LP
EVPLAN
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EVPLAN
Bandwidth sharing by different usersServices are differentiated by different
schemes
IEEE 802.1q Bridge IEEE 802.1ad Bridge
IEEE 802 1q Bridge
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IEEE 802.1q Bridge
Performs Layer 2 Switching According to Destination MAC
address and VLANIDs
IEEE 802 1ad Bridge
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IEEE 802.1ad Bridge
Performs Layer 2 Switching According to Destination MAC
address and S-VLANIDs
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