owe020101(slide)wasn9770 v200r001 product description 200803 b v1.1
TRANSCRIPT
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HUAWEI TECHNOLOGIES Co., Ltd.
www.huawei.com
HUAWEI Confidential
Security Level: Internal
Product Description
of the WASN9770
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confidential Page 2
Product Description of the WASN9770
Hardware Introduction of the WASN9770
Software Introduction of the WASN9770
CONTENT
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Reference Model of the WiMAX Network Protocol
Notes:
R1 is the air interface
R2 is the logical interface
MSS (Mobile/Subscriber Station)
NAP (Network Access Provider) can contain multiple ASNs (Access Service Network)
NSP (Network Service Provider), CSN (Connectivity Service Network)
NAP1
ASN
ASN
ASN2
CSN
NAP2
CSN
ASP or
Internet ASP orInternet
R4
R4
R5
MSS
R2
R1
Visit
NSP
Home
NSP
R2
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WiMAX Network Structure
CSN
HA AAAAAA
CSN
HA
Internetor ASP
NSP2
ASN
R6BS
ASN
R3
NAP1
ASN-GW
BS
NSP1
R6
R5
R4/R8
R3 R3
R1
R3
NAP2
Internetor ASP
R2
R1
ASN-GW
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Functions of the ASN-GW and BS
MAC/PHY function
Power control
Radio resource management
Paging management
Location management
QoS management
Security management
Session management
Location management
Mobility management
RRM
PC
IP address management
QoS management
Tunneling management
Authentication
Accounting
Service control
BS functional entity ASN-GW functional entity
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WASN9770 Functions and Features: Function
Related to NWG Procedure (1)
BS ASN-GW Service-Server
AAA
HA
DHCP
Server1)Startup
2PHY: Scanning frequency point
->synchronizing air interface
3MAC: Network
discovery and
selection, initial
network entry 4) Authentication
5) Establishing the service flow and data path
based on the MS context sent from the AAA Server
Service process
7) Accounting: Reporting UDR
6) Allocating an IP address according to the DHCP procedure
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WASN9770 Functions and Features: Function Related
to NWG Procedure (2)
BS ASN-GW Service-Server
AAA
HA
DHCP
Server
BS8) Handover
9) Entering IDLE mode
Packets
10) Paging, and exiting IDLE mode
11Shutdown and network exiting
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WASN9770 Functions and Features: Routing
BS ASN-GW Service-Server
AAAHA
DHCP
ServerR6 R3
Completing packet forwarding of the R3 and R6 interfaces based on the route,
and route release, route reception, and route import
Static route
Default route
Backup route
Supporting three backup routes with priorities. Routes with different priorities work
in backup mode and routes with the same priority work in load-sharing mode.
Route strategy
Affecting the process of route release, route reception, and route import based on the filtering rule
Route convergence
Covering the host route of the same prefix with one network route
Route protocol
RIPv1/v2, OSPFv2, BGP-4, IS-IS, and IP strategy route
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WASN9770 Functions and Features
IP Address Allocation
BS ASN-GW Service-
Server
AAAHA
DHCP
Server
DHCP Proxy
DHCP Relay
DHCP Server
Static address allocation:
AAA allocation
Dynamic address allocation:
DHCP Server allocation
Dynamic address allocation:
ASN-GW allocation
Local configuration of address pool
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WASN9770 Functions and Features: Accounting
BS ASN-GW Service-Server
AAAHA
DHCP
Server
Accounting based on traffic flow
Accounting based on call durationAccounting based on traffic flow and call duration
Postpaid
UDR generation
UDR re-sending
UDR storage
Combining UL & DL UDRs
PrepaidQuota sending & receiving and processing
Quota returning before payment in case of anomaly
Backup of prepaid information
Tariff switching
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WASN9770 Functions and Features: Security
BS ASN-GW Service-Server
AAAHA
DHCP
Server
Verifying the subscriber validity and transmitting
encryption information of air interface
Subscriber
authentication
Authentication based on the
EAP-TTLS; authentication of
initial network entry; MSinitiating re-authentication.
MS BSGW
AuthenticatorAAA Sever
EAP Method(such as EAP-MD5,EAP-SIM,EAP-TTLS)
EAP
PKMv2 Auth Relay protocol Radius
802.16Auth Relay
Encapsulating ProtocolUDP/IP
Protocol structure
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WASN9770 Functions and Features: QoS
BS ASN-GW Service-Server
AAAHA
DHCP
Server
QoS of five types defined in the WiMAX protocol:
UGS, ertPS, rtPS, nrtPS, BE
User access control
When the user enters
the network, the system
bandwidth resource is
checked to ensure thecommitted rate.
Otherwise, the access
request is rejected (the
BE service is not
controlled).
CAR
Speed-
limited
processing
based onflow levels
Traffic shaping
Smoothening
the burst traffic
to avoid the
transient trafficimpact
Priority guarantee
Ensuring that the
service with high priority
can use the resource of
service with low priority.For example, configure
the service of UGS,
ertPS, and rtPS can use
the resource of nrtPS,
BE
Bandwidth threshold alarm
When the occupied
bandwidth resource
of the whole system
reaches thethreshold, the alarm
is available.
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5 Traffic Classes defined in 802.16e
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WASN9770 Functions and Features : Reliability
BS ASN-GW Service-Server
AAAHA
DHCP
Server
Multiple technologies ensure reliability of overall system
Hotswappable
boardsofall typesSystem
resource control
System overload
control
Resource
monitoringResource checks
Automatic fault
detection and self-
healing function of
the boards
The SRU and SPU
supports active and
standby hot back mode
The LPU supports theactive and standby or load-
sharing hot back mode
The power supply works
in load-sharing hot backup
mode
The fan system works in
redundant backup mode
Hardwaresystem
redundancy
Lock function
of boards
The board does
not have any new
service access.
The former service
is gradually
separated. Thus,
the board can be
isolated finally.
Redundantnetworking
R3, R6, and OM dual-
plane networking
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Product Description of theWASN9770
Hardware Introduction of the WASN9770
Software Introduction of theWASN9770
CONTENT
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WASN9770 Cabinet
N68-22/N68E-22 cabinet:
600 mm x 800 mm x 2200 mm
Components in the cabinet:
WASN9770 subrack
(Mandatory)
Power distribution box(Mandatory)
LAN Switch (Optional)
Firewall (Optional)
Two sets of LAN Switches and
firewalls can be configured
when dual-plane based
networking is needed.
Power d is t rubut ion box (2U)
LAN Switc h S3528 (1U)Lan swi tch cab l ing rack (1U)
LAN Switc h S3528 (1U)
Bl ank pane l (3U)
Firewall E200 (3U)
WASN9770
subrack (18U)
B lank pane l
(1U)
(1U)
(1U)
(2U)
(2U)
Firewall E200 (3U)
Lan swi tch cab l ing rack (1U)
Bl ank pane l (3U)
B lank pane l (3U)
B lank pane l
Large cabl ing rack
B lank pane l
B lank pane l
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Hardware Platform of the WASN9770 Subrack
The hardware platform of the WASN9770 is
based on that of the Huaweis core router-
Universal Switching Router (USR) of the 5th
generation.
The signaling plane and data plane are
separately structured. In other words, the
signaling plane consist of multiple CPUs of high
performance, and the data plane consists of
multiple network processors (NPs) of high
performance and high forwarding capability.
The key boards support the hot swappable
and hot backup to ensure the reliability.
Two -48V DC power modules supply the
power in load-sharing mode.
NE40-8
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Structure of the WASN9770
S
P
U
S
P
U
S
P
U
S
R
U
S
R
U
S
P
U
FANs
Line Path
Wind Path
Power supply Power supply
L
P
U
L
P
U
S
P
U
S
P
U
WASN9770 Subrack
Based on the NE40-8 subrack, the width is 19 inches and the height
is 18 U. The fan frame in 5+1 backup mode, cabling trough, air
intake vent are available.
Up to 10 slots are available. The boards are as follows:
1SRU (Switching and Routing Unit ): It is used to collect the route
information and generate the route list. In addition, it is the
operation and maintenance agent and the data packet switching
center.2SPU ( Service Processing Unit): It is used to process the service
related to the WiMAX protocol.
3LPU (Line interface Processing unit): It is used to provide the
physical interfaces to external networks and data forwarding
function.
All boards are configured in 1+1 backup mode.
Two SRUs are fixed in slots 9 and 10. Other slots are used for the SPU and LPU.
Generally, two LPUs are configured. Slots 1 and 2 are reserved for the LPU to facilitate cabling.
Two/four/six SPUs are configured according to the requirements. The neighboring two boards are one
pair and can be configured in slots 3/4, slots 5/6 and slots 7/8.
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SRU: Introduction
The SRU is the core circuit
board of system
management. The functions
are as follows:
RoutingOperation and
maintenance
Data packet switching
Clock
Accounting UDR cache
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SRU: External Interfaces
Ethernet interface
The 10/100BASE-TX and RJ-45 are connected
to the LMT for loading program and system
commission. Alternatively, they can be
connected to LAN Switch to manage multiple
remote devices.
Console interface
The RS-232 signal level and RJ-45 are used to
connect the LMT.
AUX interface
The RS-232 signal level and RJ-45 are used to
monitor the power distribution frame.
Clock interface
SMA connector is used to synchronize the clock
input and output.
CLK-OUT2
CLK-OUT1
CLK-I N2
CLK-I N1
SRURUN
ALM
ACT
RESET
10/ 100BASE-TX
AUX
CONSOLE
A
C
T
LINK
SR U
RUN
ALM
ACT
CLK-OUT2
CLK-OUT1
CLK-IN2
CLK-IN1RESET
10/100BASE-TX
AU X
CONSOLE
ACT
LINK
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SPU: Introduction
SPU: It is used to complete
all the service processing
functions of the WASN9770.
The functions are as follows:
Protocol processing at theR6/R4/R3 interface
Accounting flow statistic
Encapsulation and
forwarding of the service
packet
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LPU: Introduction
LPU: It provides the physical
interfaces to the external
networks. The types of
interfaces are FE, GE, and
POS. The LPU searches for
the route table and forwards
the datagram. The LPU can
works in active and standby
mode or load-sharing hotbackup mode.
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LPU: Interfaces
Interface Description
10/100 Mbps
Ethernet
10/100Base_TX, Auto Negotiation, Full/Half Duplex,
Category 5 UTP, IEEE 802.3/u, Ethernet II
1000 Mbps
Ethernet
1000Base_T Copper RJ45, 1000Base_FX Fiber SC,
Full Duplex, GBIC, IEEE802.3z, Ethernet II
POS
2/4/8-port 155/622M POS single-mode optical
(maximum transmission distance is 15 km), POS OC-
3c/OC-12c/STM-1/STM-4c, SC/LC/MTRJ
Interfaces provided by the LPU:
16 port FE (Electrical interface)
4 port GE (GBIC, electrical
interface, multi mode of optical
interface, and single mode of
optical interface)
2 port 622 M POS
8 port 155 M POS
WASN9770 Physical Features & V200R001
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WASN9770 Physical Features & V200R001
Performance ItemsParameter Item
Cabinet
dimension
Height: 2200 mm
Depth: 800 mm
Width: 600 mm
Weight
One cabinet is less than 300
kg.
Power
DC input voltage:
-48 V to -60 V DC
Total power
consumption
The power consumption of
one cabinet is less than 1400
W.
Environment
Short term working
environment: 5 to 40 /5%
to 85%
Long term working
environment: -5 to 50 /5%
to 90%
Certificate
CE, FCC, MET-Safety, MET-
CB, C-TICK, VCCI, ROHS
Parameter Item
Number of service flows
supported by the SPU
600,000
(Up to three pairs of SPUscan be configured in the
WASN9770. Each pair
supports up to 200,000
service flows.)
Number of users
supported by the whole
system
300,000
(Up to three pairs of SPUs
can be configured in theWASN9770. Each pair
supports up to 100,000
users.)
Maximum data
throughput 3G bit/s
Number of maximumBSs (Cells) 1000
Number of maximum
IPSec tunnels 5000
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Product Description of the WASN9770
Hardware Introduction of theWASN9770
Software Introduction of the WASN9770
CONTENT
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Service-
Server
Introduction to the ASN-GW Protocol
BSASN-GW
AAA
HA
R6 signaling
R6 trafficR3 signaling
R3 service
R6 Signaling
/UDP/IP
DATA,DHCP/GRE/IP
Radius
DHCP
DHCP Server
R3R6
IP
VPNGRE
MPLS
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Protocol Architecture of the ASN-GW Service Plane
802.16
802.16MA
C
MS BS PE
IP
802.16
802.16MA
C IP
ASN GW
GR
E
IP
GR
E
SERVER
R1 R6 R3
R6
/DHC
P
GR
E
IP
R
6/DHC
P
IP IP
GR
E
IP
802.16PHY
802.16
MAC
IP
802.16
PHY
802.16
MACIP
GRE
IP
GRE
User Data/DHCP
GRE
IP
User Data/
DHCP
IP IP
GRE
IP
Protocol Stack of
Service Plane(R3 GRE VPN)
Protocol Stack of
Signaling Plane
IPIP
UDP
UDP
R3
R6
Signaling
IP
UDP
Radius
/DHCP
IP
UDP
R6
R6
Signaling
BS ASN GW AAA/DHCP Server
IP
UDP
Radius
/DHCP
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Signaling and Data Flow Diagram of the WASN9770
LPU
LPU
SPU
SPU
MPU
NET
WASN9770
Serviceflow
Signaling
flow
Service data flow: After
receiving the UL or DL data, the
LPU directly processes and
forwards it if the data is common
route packet. The LPU forwards
the data to the SPU if the data
must be processed by the SPU.
After being processed by the SPU,
the data is forwarded through the
LPU.
Signaling flow: The LPU
receives the UDP signaling or
DHCP signaling from the R6
interface. If the destination
address is the IP address of the
R6 interface on the SPU, the LPUforwards the signaling to the
related SPU. After processing the
signaling, the SPU forwards the
corresponding signaling to the
LPU through the SRU.
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UL Data Forwarding Procedure
BS GW LPU GW SPU APP
IP1+GRE+
IP2+DATA
Decapsulating MAC, checking
FIB table, and obtaining target
board No.
Destination IP address: IP
address of R6 interface
CELL Header +FH+IP1+GRE+IP2+DATA
Checking DP table with GRE KEY; checking
packet validity; decapsulating GRE Header
legally; checking FIB table; obtaining next hop IP
address, discarding packet illegally.
CELL Header+FH+IP2+DATA
Checking ARP table; encapsulatingMAC header, sending the packet out
of the interface IP2+DATA
CP
MM
SM
DHCP
NP
LPU
SPU
SRU
BS
DPFilter
APPSERVER
CP
MM
SM
DHCP
NP
LPU
SPU
SRU
BS
DP table
Filter tableForwarding tableof whole office
APPSERVER
Datastream
IPpackage
GREpackag
e
DL D t F di P d
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DL Data Forwarding Procedure
CP
MM
SM
DHCP
NP
SPU SRU
BS
DP table
Filter table
Forwarding table
of whole office
APP
SERVER
IP
packet
GREpacket
BSGW LPU GW SPUAPP
IP2+DATA
Decapsulating MAC, checking FIB table. If the
destination IP address is the user IP address, the
target board No, and N value are obtained by checking
the forwarding table of the whole office.
CELL header
+FH+IP2+DATA
Checking the DP table successfully to encapsulate
IP1+GRE. Then checking the FIB table to obtain the
next hop IP address, outgoing port No., and target
board No.
CELL Header+FH+IP2+DATA
Checking the ARP table, encapsulating
MAC Header, sending the packet out of
the interface
IP1+GRE+I
P2+DATA
Security Level: Internal
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HUAWEI TECHNOLOGIES Co., Ltd.
www.huawei.com
HUAWEI Confidential
Security Level: Internal
Thank You!