Huawei RTN Microwave DCN Solutions V1.3 (20101115)

Security Level: Internal

Huawei RTN microwave DCN Solutions

Transmission Network Marketing Support Department

HUAWEI TECHNOLOGIES CO., LTD.

Huawei Confidential

www.huawei.com

Brief Introduction to DCN Solutions


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Have You Ever Encountered the Following Problems When You Communicate DCN Information with Customers? How does the NMS manage the equipment and how does one perform end-to-end DCN planning?

How does one design a DCN when the radio equipment interconnects with a third-party network?


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End-to-End DCN Planning OSS

External DCN NMS primary

Client

EMS primary

Client

●● ●

DCN TCP/IP

Client

●● ●

DCN TCP/IP

DCN TCP/IP

NMS secondary

EMS secondary

Mature technologies, NMS department being the owner •The major work is to plan IP routes. •OSS/NMS engineers design the external DCN.

Client

DCN TCP/IP, OSI

GNE

GNE

●

●

GNE

●

GNE

Internal DCN

RTN department being the owner of the internal DCN Two scenarios:

HWECC, TCP/IP, OSI, extended ECC NE

● ● ●

HWECC, TCP/IP, OSI, extended ECC NE


NE

● ● ●

•A network comprises only Huawei radio equipment. NE

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•A network comprises Huawei radio equipment and third-party equipment.

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DCN Planning When Huawei Radio Equipment Forms a Network Independently Gateway NE

60 NEs

NMS Gateway NE

Extended ECC

Network cable

60 NEs

•The inband DCN (using IP protocol) is recommended for the OptiX RTN 900 V100R001, and the HWECC protocol is recommended for other versions. •When DCCs are unavailable, connect NEs through NM cascading ports to achieve transmission of network management information on extended ECCs. HUAWEI TECHNOLOGIES CO., LTD.

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DCN Planning When Huawei Radio Equipment Forms a Network with Third-Party Equipment Analyze the network.

Learn about the type of the third-party equipment and the type of Huawei radio equipment.

FE channels

E1 channels

NM information is directly transmitted through FE services.

Use the FE-to-E1 protocol converter.

The traversed network can provide pass-through channels.

RS-232 /G.703 19.2/9.6 kbit/s channels

Use the FE-to-RS232/G703 protocol converter.

Other channels

Use shared DCN channels or submit an OR workflow to apply for the development of a new protocol converter.

No solution is available. Communicate with the customer for provision of channels.

No channel

Whether do both Huawei radio equipment and third-party equipment support the same DCN protocol?

Y Share DCN channels to achieve network management.

Give priority to protocol converter solutions of Huawei over DCN protocols (IP protocol or OSI protocol). HUAWEI TECHNOLOGIES CO., LTD.

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Detailed Description of DCN Solutions


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Contents • • • •

DCN Concepts and DCN Specifications Multi-Scenario DCN Solutions DCN Cases FAQs

What Is DCN? External DCN

NMS

Router LAN switch

DCN Gateway NE

DCN stands for data communication network. A DCN provides communication channels for managing NEs in a centralized manner to achieve remote management and maintenance of NEs.

A DCN between the NMS and NEs is called an external DCN. Generally, the NMS is connected to NEs through an external DCN that comprises LAN switches, routers, and other data communication devices. A DCN between NEs is called an internal DCN. Internal DCNs are classified into inband DCNs and outband DCNs.

RTN

Non-gateway NE


Internal DCN

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Physical Transmission Channels and Transmission Protocols of an Internal DCN Physical transmission channels: inband DCN and outband DCN Service channels Outband DCN

Overheads Payload

Inband DCN

Outband DCN Transmission of NM information does not occupy service bandwidth because DCC bytes in overheads serve as physical channels of a DCN. Inband DCN Transmission of NM information occupies service channels (Ethernet service channels generally). For example, a VLAN of data services is used to transmit NM information. Service channel: NM interface,TDM service,FE/GE and so on.

ECC protocols: HWECC protocol, IP protocol, and OSI protocol HWECC protocol (private protocol) Transport layer Network layer Media access layer Physical layer

IP protocol (standard protocol)

HWECC L4

Application layer

SNMP

HWECC NET

UDP

HWECC MAC

Transport layer Network layer Link layer

DCC/LAN

Physical layer

The HWECC solution applies to a network that comprises only Huawei equipment or scenarios wherein Huawei equipment need not communicate OAM information with other-vendor equipment.

HUAWEI TECHNOLOGIES CO.,

OSI protocol (standard protocol)

FTP, TL1, TL1 over Telnet Qx, MML, Web LCT TCP IP/ICMP/ARP Ethernet LAN

Application layer

QX/MML/SWDL

Transport layer

TP4 ISO 8073 IS-IS ISO 10589 ES-IS ISO 9542 CLNP ISO 8473 Ethernet

Network layer

PPP DCC

Link layer Physical layer

LAN

LAPD Q.921 DCC

The IP solution achieves support of the TCP/IP protocol on DCCs (physical layer)/LAN and applies to scenarios wherein Huawei equipment needs to communicate OAM information with other-vendor equipment.

The OSI solution achieves support of the OSI protocol on DCCs (physical layer) /LAN and applies to scenarios wherein Huawei equipment needs to communicate OAM information with other-vendor equipment.

Note: Application layer protocols are private protocols and cannot achieve communication of OAM information between equipment of different vendors, whereas other-layer protocols are standard protocols and can achieve communication of OAM information between equipment different vendors. HuaweiofConfidential LTD.

Note: Application layer protocols are private protocols and cannot achieve communication of OAM information between equipment of different vendors, whereas other-layer protocols are standard protocols and can achieve communication of OAM information between Page 11 equipment of different vendors.

DCN Solutions Provided for Huawei Radio DCN Solution Protocol Stack Category HWECC

Physical Channel

Applicable Scenario

This solution is applicable to a network wherein equipment supports the HWECC protocol and This solution is applicable to a network that comprises only DCCs are interconnected. This solution is preferred when a network comprises only Huawei Huawei equipment. equipment. This solution is preferred when a network comprises the OptiX transmission equipment and the The OptiX transmission equipment forms a network with third-

IP over DCC

third-party equipment that supports the IP over DCC function. Outband DCN

Remarks

OSI over DCC

party equipment. On the network, DCCs are shared but DCC bandwidths are limited. In addition, the number of permitted

DCC/ETH (network port)

NEs is also limited. This solution is preferred when a network comprises the OptiX transmission equipment and the The OptiX transmission equipment forms a network with thirdthird-party equipment that supports the OSI over DCC function.

party equipment. On the network, DCCs are shared but DCC bandwidths are limited. In addition, the number of permitted NEs is also limited.

Extended ECC

HWECC

Ethernet

No service channels are available between two OptiX NEs but the two OptiX NEs can

This solution is applicable to a network that comprises

interconnect with each other through NM ports.

only Huawei equipment. By default, a maximum of three NEs can be managed.

HWECC

A very small part of service bandwidth is occupied. This solution is applicable to a network that comprises only

Inband DCN

Service channels IP protocol

DCC transparent transmission

NA

Huawei equipment. This solution is applicable to a network that comprises the OptiX RTN 900 equipment and A very small part of service bandwidth is occupied, but

DCCs

DCC transparent Not involved External Clock transmission through the Interface external clock interface Protocol converter solution Not involved Auxiliary services or service channels

other equipment.

networking is flexible.

This solution is applicable to a network that comprises the OptiX transmission network

In actual situations, SDH radio is seldom used. In addition,

and the third-party SDH equipment that does not support the IP over DCC function or OSI the equipment must support the configuration of D byte. over DCC function.

Therefore, this solution is seldom adopted.

This solution is applicable to a network that does not support transparent transmission

huawei MW assing through third-party equipment，and

of DCC bytes carrying NM messages.

transmited by E1

Huawei radio equipment transmits NM information to a third-party NM port by using a Due to the characteristics of radio services, Huawei radio protocol converter according to the type of the third-party NM port. Thus, NM information equipment is widely used with third-party equipment to is transparently transmitted. form networks. Protocol converters, however, need to be provided (quoted and configured in advance).

•The preceding solutions are provided based on the combination of a DCN protocol (IP protocol, OSI protocol, and HWECC protocol) and transmission channels (DCCs, service channels and in_band DCC). •In the case of a network comprising only Huawei equipment, the HWECC solution is preferred. In the case of a network comprising Huawei equipment and third-party equipment, the protocol converter solution is preferred and prepare quotations for protocol converters in advance.


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DCN Solutions Supported by Each Major Version of Huawei Radio DCN Solution Physical Channel RTN 605 R003 Category Protocol Stack HWECC Y

RTN 605 R005

RTN 620 R003

RTN 620 R005

RTN 900 R001

RTN 900 R002

Y

Y

Y

N

Y

Y

Y

Y

Y

N

Y

N

N

Y

Y

N

Y

N

N

Y

Y

N

Y

Y

Y

Y

Y

N

Y

N

N

N

N

N

Y

N

N

N

N

Y

Y

N

N

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

IP over DCC DCC/ETH (network port) Outband DCN

OSI over DCC

DCC transparent transmission

DCCs

HWECC

Ethernet

Extended ECC

HWECC Inband DCN DCC transparent transmission through the external clock interface

Protocol converter solution

IP protocol Not involved

Service channels Wayside E1

Not involved Auxiliary services or service channels

•For information on whether a board supports a specific solution, see the DCN White Paper or Feature Description. HUAWEI TECHNOLOGIES CO., LTD.

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Protocol Converter Introduction Protocol Converter

A protocol converter performs mutual conversion between signal protocols. Application scenario: DCN information needs to be transmitted between two NEs but the two NEs provide different protocol ports. The protocol converter solution is preferred when Huawei equipment forms a network with third-party equipment.

FE-to-RS232 converter (RS232_Converter)

Mutual conversion between 1xFE and 1xRS232

FE

RS232

FE-to-E1 protocol converter Type A: E1_Converter

Type B： E1_C_Converter

Mutual conversion between 1xFE and 1xE1

FE

E1

Type C: E1_MUX_Converter

Mutual conversion between 1xFE+1xE1 and 1xE1

E1

FE

FE-to-G703 converter (G703_Converter)

Mutual conversion between 1xFE and 1xQ703

FE

G703

FE

Mutual conversion between 1xFE and multiple E1s

E1

FE

E1 E1

……


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Note： 1. E1_Converter can not interconnect with E1_C_Converter 2. E1_MUX_Converter with different BOM can not interconnect

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Protocol Converter Application Scenarios RS232_Converter

RS232 Channel

G703_Converter

G703 Channel

E1_Converter E1Channel

E1_C_Converter

E1_MUX_Converter Maximal 8 E1 E1 Channel

E1 Channel

E1 Channel


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E1 Channel

DCN Specifications Capability of a gateway NE Can a gateway NE be connected to as many non-gateway NEs as possible? How many non-gateway NEs can a gateway NE manage?

A gateway NE can manage a maximum of 60 non-gateway NEs. If NEs is more than 60, more gateway NE is required

Bandwidth limit In the case of different DCN channel bandwidths, the maximum number of non-gateway NEs that a gateway NE can manage is as follows: DCN Channel

Maximum Number of non-gateway NEs


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RS232 (9.6 kbit/s)

RS232 (19.2 kbit/s)

64 kbit/s

E1

3 to 5

5 to 10

30 to 50

500 to 1000

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DCN Specifications Management capability of an NMS How is the DCN management capability?

The management capability of an NMS refers to the maximum number of NEs that the NMS can manage when the preset performance specifications are met. Maximum number of NEs that can be managed = 1000 x A/B

B: equivalent coefficient of the radio equipment

A: management capability coefficient of an NM server NM Server

Sun SPARC Enterprise M4000 (4 CPUs)

15

Sun SPARC Enterprise M4000 (2 CPUs)

6

Sun SPARC Enterprise T5220 (8Core)

1

Sun SPARC Enterprise T5220 (4Core)

1.5

Sun Fire E4900


Management Capability Coefficient

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NE

6

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Equivalent Coefficient

OptiX RTN 605

0.5

OptiX RTN 620

1

OptiX RTN 910

0.5

OptiX RTN 950

1



DCN Networking Scenarios

1


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Complex DCN Networking Scenarios RTN

Thirdparty NMS

NMS OSN/PTN

The 3rd party

Point-topoint

Ring Chain

RTN 950

RTN 910

Supplementary optical network

E1/STM-1 FE/GE

RTN 950

Star

RTN 605

BSC/RNC/aGW RTN 950

RTN 605

RTN 620

A network may comprise many types of equipment such as OptiX RTN 605/620/910/950, OptiX OSN/PTN equipment,

and third-party equipment. A network may involve multiple networking topologies such as point-to-point, chain, star, ring, and supplementary network to an optical network. NM information about Huawei equipment passes through a third-party network or NM information about third-party equipment passes through a Huawei RTN network. HUAWEI TECHNOLOGIES CO., LTD.

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Complex DCN Networking Scenarios RTN

Thirdparty NMS

NMS OSN/PTN

The 3rd party

Pointto-point

Ring Chain

RTN 950

RTN 910

Supplementary optical network

BSC/RNC/aGW RTN 950

RTN 605

RTN 620

What should we do in such complex DCN networking scenarios?


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FE/GE

RTN 950

Star

RTN 605

E1/STM-1

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DCN Solutions Solutions to a network comprising only Huawei equipment Multiple versions OptiX RTN 600 V100R002/R003/R005, OptiX RTN 900 V100R001/R002, ...

Multiple versions

Multiple types of equipment

Complex DCN scenarios

Multiple topologies

Multiple types of equipment RTN, OSN, PTN Multiple topologies Point-to-point, chain, star, ring, …

Solutions to a network comprising Huawei radio equipment and third-party radio equipment

Forming a network with third-party equipment

Does an OptiX RTN network pass through a thirdparty network or a third-party network pass through an OptiX RTN network? Is the point-to-point topology, chain topology, star topology, or ring topology adopted?

• Any network is formed by point-to-point applications.

• Two basic application scenarios are as follows: a network comprising only Huawei radio equipment, and a network comprising Huawei radio equipment and third-party radio equipment. HUAWEI TECHNOLOGIES CO., LTD.

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Solutions to a Network Comprising Only Huawei Equipment

2


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Quick Reference NMS Multiple versions:

Multiple types of equipment: RTN, OSN, PTN

Network comprising only Huawei radio equipment

RTN 600 V1R2/R3/R5, RTN 900 V1R1/R2…

OSN/PTN

Optical+radio ring

E1/STM-1 FE/GE OSN/PTN

RTN

BSC/RNC/aGW

Multiple topologies: Point-to-point, chain, star, ring, … HWECC protocol stack

DCN solution: • In most scenarios, the HWECC protocol stack is preferred when a network comprises only Huawei radio equipment. HUAWEI TECHNOLOGIES CO., LTD.

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RTN 600 V1R2/R3/R5, RTN 900 V1R1/R2…

OSN/PTN

Optical+radio ring

E1/STM-1 FE/GE OSN/PTN

RTN

Multiple topologies:

Point-to-point, chain, star, ring, …

Inband DCN

DCN solution: • Adopt the inband DCN solution（using IP protocol） for an OptiX RTN 900 network that comprises the OptiX RTN 900 V100R001. HUAWEI TECHNOLOGIES CO., LTD.

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BSC/RNC/aGW




RTN 600 V1R2/R3/R5, RTN 900 V1R1/R2…

OSN/PTN

Optical+radio ring RTN

E1/STM-1

FE/GE OSN/PTN BSC/RNC/aGW

Multiple topologies: Point-to-point, chain, star, ring, … Transparent transmission solution

DCN solution: • Adopt the transparent transmission solution for an OptiX RTN 600/900 network that comprises the OptiX RTN 900 V100R001. HUAWEI TECHNOLOGIES CO., LTD.

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RTN 600 V1R2/R3/R5, RTN 900 V1R1/R2…

OSN/PTN

Optical+radio ring RTN

E1/STM-1

FE/GE OSN/PTN BSC/RNC/aGW

Multiple topologies: Point-to-point, chain, star, ring, …

Network cable

Extended ECC

DCN solution: • When no service interfaces are available between two NEs, use extended ECCs to form an internal DCN. HUAWEI TECHNOLOGIES CO., LTD.

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3

Solutions to a Network Comprising Huawei Radio Equipment and Third-Party Radio Equipment •DCN Information of a Huawei RTN Network Passing Through a Third-Party Network •DCN Information of a Third-Party Network Passing Through a Huawei RTN Network •DCN Solutions to Typical Scenarios


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Passing through third-party equipment

Passing through Huawei radio equipment

DCN solutions to typical scenarios

Analysis of the DCN Solutions to the Scenario Wherein DCN Information of a Huawei RTN Network Passes Through a Third-Party Network HW NMC

Third-party network

RTN

RTN

RTN

Protocol converter Router

How to connect HW NMS to third-party equipment and how to connect the third-party network to Huawei RTN network?


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The DCN solutions are determined by the type of transmission channels that the third-party network adopts and the DCN solutions that the third-party network supports.

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DCN Solutions to the Scenario Wherein DCN Information of a Huawei RTN Network Passes Through a Third-Party Network HW NMC

Third-party network

RTN

1

2

3

RTN

Inband DCN or FE transparent transmission

Protocol converter

One FE port is occupied and no extra device is required.

E1 service channel, G.703-compliant synchronous port, or RS-232 asynchronous port

IP over DCC or OSI over DCC


RTN

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Router

The corresponding protocol converter is required.

No extra device is required but static routes need to be configured.

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Summary of the DCN Solutions to the Scenario Wherein DCN Information of a Huawei RTN Network Passes Through a Third-Party Network HW NMC

Third-party network

RTN

RTN Protocol converter Router

RTN Solution Category

Serial No.

Transparent Transmission Channel Provided by Third-Party Equipment

1 2 Protocol converter

E1 service channels

3

Auxiliary DCN Device

Remarks

E1_Converter

The service bandwidth of 2 Mbit/s (one E1) is required and therefore third-party equipment needs to provide one E1 port.

E1_MUX_Converter

A minimum service bandwidth of 64 kbit/s is required and therefore third-party equipment needs to provide one E1 port.

E1_C_Converter

This converter is applicable to point-to-multipoint scenarios and requires FE pass-through.

G703_Conveter

Third-party equipment needs to provide one G.703-compliant 64 kbit/s codirectional data port.

RS232_Converter

Third-party equipment needs to provide one RS-232 data port.

4

G.703-compliant port

5

RS-232 data port

6

DCN channels by using the IP over DCC protocol

None

The entire third-party network must adopt the IP over DCC protocol. In addition, routes need to be configured manually (this work is complicated) and data bandwidth needs to be calculated in advance.

7

DCN channels by using the OSI over DCC protocol

None

The entire third-party network must adopt the OSI over DCC protocol. In addition, routes need to be configured manually (this work is complicated) and data bandwidth needs to be calculated in advance.

8

FE service channels

Router (required when NM information passes through an IP network)

Routers are used for data transfer between network segments.

Sharing DCN channels

Ethernet pass-through

HUAWEI TECHNOLOGIES DCC transparent transmission through the external clock 9

CO., LTD. E1/STM-1 service channels

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31 clock interface carries DCN information (the The E1 provided by Page the external OptiX RTN 605 does not support this DCN solution) and one E1 of third-party




Analysis of the DCN Solutions to the Scenario Wherein DCN Information of a Third-Party Network Passes Through a Huawei RTN Network Third-party NMC

Huawei radio

Third-party network

RTN

RTN

How to connect the third-party NMS to Huawei radio equipment and how to connect Huawei RTN network to the third-party network?


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•Huawei radio equipment supports multiple DCN solutions, and therefore can transparently transmit information about third-party network easily. •Multiple DCN solutions are available, similar to the scenario wherein Huawei RTN network passes through third-party network.

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Summary of the DCN Solutions to the Scenario Wherein DCN Information of a Third-Party Network Passes Through a Huawei RTN Network Third-party NMC

Huawei radio Third-party network

RTN Solution Category

Serial No.

Transparent Transmission Channel Provided by Huawei Equipment

1 2 Protocol converter

E1 service channels

3

RTN Auxiliary DCN Device

Remarks

E1_Converter

The service bandwidth of 2 Mbit/s (one E1) is required and therefore Huawei radio equipment needs to provide one E1 port.

E1_MUX_Converter

A minimum service bandwidth of 64 kbit/s is required and therefore Huawei radio equipment needs to provide one E1 port.

E1_C_Converter

This converter is applicable to point-to-multipoint scenarios and is generally used with the preceding two protocol converters.

G703_Converter

Huawei radio equipment needs to provide one G.703-compliant 64 kbit/s codirectional data port.

RS232_Converter

Huawei radio equipment needs to provide one RS-232 19.2 kbit/s data port.

4

G.703-compliant port

5

RS-232 data port

6

IP over DCC

None

Huawei equipment and third-party equipment need to support the IP protocol and interconnect with each other through management ports. In addition, routes need to be configured manually.

7

OSI over DCC

None

Huawei equipment and third-party equipment need to support the OSI protocol and interconnect with each other through management ports. In addition, routes need to be configured manually.

8

FE service channels

Router (optional)

Huawei equipment needs to provide one FE port. In addition, radio service channels of Huawei equipment are occupied and the channel bandwidth is determined by the DCN information of third-party equipment.

Sharing DCN channels

Ethernet pass-through


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Scenario 1: Point to Point (Independent Channels) Description of the scenario: The protocol converter performs protocol conversion and point-to-point transmission. In this scenario, protocol converters are used in pairs. That is, the number of protocol converters that are used in the NM center is equal to the number of protocol converters that are used at the remote pass-through point.

NMS LAN switch

E1_Converter E1/64k/RS232 etc.

E1_Converter

NM center

E1/64k/RS232 etc. E1_Converter

E1_Converter

E1/64K/RS232 etc ETH

Advantages and disadvantages of the solution: The advantage of this solution is simplicity. The disadvantage is that, in the case of multiple pass-through points, the number of protocol converters in the NM center is large and many transmission channels are occupied. Therefore, this solution is applicable to the scenario wherein only a few pass-through points exist.


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Scenario 2: Point to Multipoint (Independent Channels) Description of the scenario: When multiple pass-through points exist, adopt the C-Converter that supports multiple inputs to reduce the number of converters in the NM center.

NMS E1_MUX_Converter

E1 network E1_C_Converter

E1_MUX_Converter

LAN switch E1_Converter

NM center

E1/64k/RS232

E1_Converter

E1/64K/RS232 etc ETH

Advantages and disadvantages of the solution: One E1_C_Converter is used with multiple E1_Converters. Multiple E1 channels, however, are occupied. Therefore, this solution is applicable to a network wherein E1 channels are sufficient.


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Scenario 3: Cascading Converters (Shared Channels) Description of the scenario: In practice, as E1 bandwidths are valuable, multiple protocol converters may share one E1; that is, each converter occupies one or several 64 kbit/s timeslots of the E1. As a result, the converters are cascaded.

NMS E1 network E1_MUX_Converter

E1_MUX_Converter

E1 network E1 network

E1_MUX_Converter

LAN switch E1_C_Converter

NM center

E1 (nx64 kbit/s) NM signal ETH NM signal

Advantages and disadvantages of the solution: DCN communication on the entire chain is implemented over one E1, and the E1_MUX_Converters consume fewer E1 bandwidths. This solution is applicable to a complex network. Note: Currently, only the E1 protocol converter supports the cascading.


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Scenario 4: E1 Convergence (Shared Channels) Description of the scenario: In actual operations, multiple E1 channels may be converged into one E1 channel. Specifically, the 64 kbit/s timeslots in use in the E1 channels are converged into one E1 channel. Similar to the NM center, the convergence point converges multiple directions into one direction. In this case, an E1_C_Converter is required.

E1 network

NMS

E1 (nx64 kbit/s) E1 network E1

E1 (nx64 kbit/s)

E1_MUX_Converter

E1 network

E1 (nx64 kbit/s)

E1_MUX_Converter

E1_CConverter E1 E1_MUX_Converter

(nx64 kbit/s) E1 network

LAN switch

E1_C_Converter

NM center

E1_MUX_Converter

E1 (nx64 kbit/s) NMS signal ETH NMS signal


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Scenario 5: Passing Through a Live IP Network Description of the scenario: An IP network is available between an OptiX RTN NE and the NM center. In this case, no protocol conversion is required. In addition, the live IP network and the OptiX RTN NE are located in different network segments in most cases. Therefore, it is recommended that you configure one router at each pass-through point and in the NM center for data transfer between the network segments.

NMS

NM center IP network

Router

LAN switch Router

IP network Router


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Case 1: Sharing E1 Channels Description of the scenario: See the following figure. There are eight pass-through points and one E1 convergence point. The pass-through points form a tree topology and each pass-through point needs to transmit NM information to the NM center. The chains on which NM information is transmitted share one E1. On the chains, each interconnected point occupies one to several 64 kbit/s timeslots in the E1. E1 convergence point E1汇聚点

NMS NM center

E1-MUX_converter

E1_MUX_converter

E1_C-Converter E1 networ k

LAN switch

E1_MUX_ Converter

E1_C_converter

E1 networ k

E1 network

E1

E1 network

other E1_MUX_converter E1

E1 network

E1

E1

E1_MUX_converter E1_MUX_converter

E1

E1 network

E1_MUX_Converter

E1 network

E1_MUX_converter E1 E1 E1_MUX_Conv erter

ETH

Acces s point

DCN solution: Configure one converter for each pass-through point, one C-Converter for the E1 convergence point, and one C-Converter and one LAN switch for the NM center. HUAWEI TECHNOLOGIES CO., LTD.

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Case 2: Large-Scale Network Comprising Only Huawei Radio Equipment Description of the scenario: In the case of a large-scale network comprising only Huawei radio equipment, divide the network into subnets and set a gateway NE for each subnet. Group a maximum of 60 adjacent NEs into one subnet. See the following figure. The network is divided into five subnets. Note: If the HWECC protocol is adopted, one gateway NE can support a maximum of 100 non-gateway NEs.

NMS LAN switch NM center

60 NEs

E1 networ E1_C-Converter k E1_MUX_Conve rter

60 NEs E1_MUX_ Converter

E1_MUX_Converte r

60 NEs

60 NEs

E1_MUX_Conv erter

E1_MUX_Conve rter

50 NEs

E1 ETH

DCN solution: Configure one LAN switch and one E1_C-Converter for the NM center, and one E1_Converter for each subnet. HUAWEI TECHNOLOGIES CO., LTD.

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FAQs Q: How to obtain documents about protocol converters? A: Visit The description of Protocol Converter on website 3ms. Q:Why hybrid network with a third party recommended protocol converter? A: If possible, you can also use the Ethernet transparent transmission DCN information.but in the existing TDM microwave network, Ethernet ports are scarce, generally no Ethernet interface, in most cases need to use protocol converters for conversion information transmit DCN. If you are using the Ethernet network to allow transmission through the DCN information, will be a very good program. Q: Where are documents about DCN solutions available, except for this slide? A: Download documents about DCN solutions from website 3MS. Document Name

Link

OptiX RTN 600 NMS Transparent Transmission Solutions via Third Party

3MS

Huawei RTN DCN Mix 3rd Party Solution V1.0 (20090828)

3MS

OptiX RTN DCN documentation – Hardware Interfaces and Solutions V1.0 (20090814)

3MS

Microwave DCN White Paper 1.1

3ms

OptiX RTN Pre-Sales and After-Sales DCN Pass-Through Planning Guide V1.02

3ms


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Thank You www.huawei.com

Huawei RTN Microwave DCN Solutions V1.3 (20101115)

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