Table Of ContentWWiirreelleessss MMeesshh NNeettwwoorrkk
TTeecchhnniiccaall OOvveerrvviieeww
Danny Ng
mailto:[email protected]
WWhhaatt iiss aa WWiirreelleessss MMeesshh NNeettwwoorrkk ??
Traditional WLAN Architecture
Access
Point 10/100BT Ethernet
Backbone Ethernet
Network
Access
Point
IEEE 802.11 a/b/g
2
WWhhaatt iiss aa WWiirreelleessss MMeesshh NNeettwwoorrkk ??
WLAN with Wireless Transit
Backbone Ethernet
Network
Access
Point
10/100BT Ethernet
Access
Point
IEEE 802.11 a/b/g
Wide variety of Wireless
Transit technology
3
WWhhaatt iiss aa WWiirreelleessss MMeesshh NNeettwwoorrkk ??
Wireless Mesh
Backbone Ethernet
Network
Access
Point
10/100BT Ethernet
Access
Point
IEEE 802.11 a/b/g
Wireless transit with
Inter-AP ‘Meshing’ protocol
4
PPrroottoottyyppee NNeettwwoorrkk AArrcchhiitteeccttuurree
OAM&P
AAA Service DHCP Border Internet
at large
Service Service Gateway
Policy Subscriber Enterprise / ISP
Service Mgmt Service Backbone Firewall,
Network NAT, etc.
NOSS
WG-1
WG-2
CAN-Alpha
Enterprise / ISP / Metro
NAP-R1
Distribution Network
NAP-R2 NAP-R3
AP
AP
AP = Wireless Access Point
CAN = Community Area Network
NAP-R = Network Access Point Router
NOSS = Network Operations & Support Services CAN-Beta
WG = Wireless Gateway CAN-Gamma
WMN = Wireless Mesh Network
5
NNoorrtteell WWiirreelleessss MMeesshh NNeettwwoorrkk AArrcchhiitteeccttuurree
OAM&P
AAA Service DHCP Border Internet
at large
Service Service Gateway
EEnntteerrpprriissee // IISSPP
Policy Subscriber
Service Mgmt Service BBaacckkbboonnee Firewall,
NAT, etc.
NNeettwwoorrkk
NOSS
WG-2
Enterprise/ISP Backbone Network
• Carry IP traffic between Wireless Gateways (WG) and other
elemeCnAtsN o-Af ltphhea Enterprise / ISP Network (e.g. Border Gateways
(BG), NOSS servers).
Enterprise / ISP / Metro
NAP-R1
Distribution Network
NAP-R2 NAP-R3
AP = Wireless Access Point
CAN = Community Area Network
NAP-R = Network Access Point Router
NOSS = Network Operations & Support Services CAN-Beta
WG = Wireless Gateway CAN-Gamma
WMN = Wireless Mesh Network
6
NNoorrtteell WWiirreelleessss MMeesshh NNeettwwoorrkk AArrcchhiitteeccttuurree
OAM&P
AAA Service DHCP Border Internet
at large
Service Service Gateway
Policy Subscriber Enterprise / ISP
Service Mgmt Service Backbone Firewall,
Network NAT, etc.
NOSS
WG-1 WG-2
CAN-Alpha
EEnntteerrpprriissee // IISSPP // MMeettrroo
NAP-R1
DDiissttrriibbuuttiioonn NNeettwwoorrkk
NAP-R2 NAP-R3
Enterprise/ISP/Metro Distribution Network
• Carry IP traffic between Wireless Gateways (WG) and Network
Access Point Routers (NAP-R).
• May be a Layer 3 routed, or
• May be a Layer 1 or Layer 2 transport domain
AP = Wireless Access Point
CAN = Community Area Network
NAP-R = Network Access Point Router
NOSS = Network Operations & Support Services CAN-Beta
WG = Wireless Gateway CAN-Gamma
WMN = Wireless Mesh Network
7
NNoorrtteell WWiirreelleessss MMeesshh NNeettwwoorrkk AArrcchhiitteeccttuurree
OAM&P BBoorrddeerr
Internet
AAA Service DHCP
GGaatteewwaayy at large
Service Service
Policy Subscriber Enterprise / ISP
Service Mgmt Service Backbone Firewall,
Network NAT, etc.
NOSS
WG-1 WG-2
CAN-Alpha
Border Gateway
Enterprise / ISP / Metro
•NinAcPo-Rrp1orates all functions required to interface with the Internet-at-Large.
Distribution Network
• Advertises reachability to the Internet-at-Large for IP addresses assigned to WMN
subscribers and neNtwAoPr-kR 2entities. NAP-R3
• May also provide connectivity for other, non-WMNEnterprise / ISP entities.
• May also incorporate other inter-networking functions (e.g. NAT, firewall, redirection).
• Has no knowledge of WMN-specific mobility and security functions.
AP = Wireless Access Point
CAN = Community Area Network
NAP-R = Network Access Point Router
NOSS = Network Operations & Support Services CAN-Beta
WG = Wireless Gateway CAN-Gamma
WMN = Wireless Mesh Network
8
NNoorrtteell WWiirreelleessss MMeesshh NNeettwwoorrkk AArrcchhiitteeccttuurree
OAM&P
AAA Service DHCP Border Internet
at large
Service Service Gateway
Policy Subscriber Enterprise / ISP
Service Mgmt Service Backbone Firewall,
Network NAT, etc.
NOSS
WG-1
WWiirreelleessss
GGaatteewwaayy
CAN-Alpha
Enterprise / ISP / Metro
NAP-R1
Distribution Network
NAP-R2 NAP-R3
Wireless Gateway
• Advertises reachability (within Enterprise / ISP Distribution Network) for one
or more IP subnets assigned to WMN subscribers and network entities.
• Hides WMN-specific mobility and security functions from the rest of the
Enterprise / ISP Distribution and Backbone Networks.
AP = Wireless Access Point
CAN = Community Area Network
NAP-R = Network Access Point Router
NOSS = Network Operations & Support Services CAN-Beta
WG = Wireless Gateway CAN-Gamma
WMN = Wireless Mesh Network
9
NNoorrtteell WWiirreelleessss MMeesshh NNeettwwoorrkk AArrcchhiitteeccttuurree
OAM&P
AAA Service DHCP Border Internet
Service Service Gateway at large
Policy Subscriber Enterprise / ISP
Service Mgmt Service Backbone Firewall,
Network NAT, etc.
NNOOSSSS
WG-2
Network Operations and Support Services
• Centralised monitoring and managing network operations.
CAN-Alpha
• Interface to distributed elements of the WMN network through standard protocols I.e.
DHCP, SNMP, RADIUS.
Enterprise / ISP . Metro
NAP-R1
Distribution Network
NAP-R2 NAP-R3
AP = Wireless Access Point
CAN = Community Area Network
NAP-R = Network Access Point Router
NOSS = Network Operations & Support Services CAN-Beta
WG = Wireless Gateway CAN-Gamma
WMN = Wireless Mesh Network
10
Description:Wireless Mesh Network Technical Overview elements of the Enterprise / ISP Network (e.g. Border • Hides WMN-specific mobility and security functions from the
