Benefits• The simplicity of a single service at any location with

any-to-any connectivity between all sites in a national, secure VPN (Virtual Private Network) customer cloud

• Support for the widest range of IT applications because our Ethernet (Layer 2) VPN is Network Protocol Transparent

• Customer control of the equipment that connects to the VPLS and how the access circuit is logically configured, not requiring co-ordination with the carrier

• Support for real time and mission-critical applications with low latency and Quality of Service (QoS) included as standard to all sites

• Lowest total cost of ownership with the simplicity of Ethernet (Layer 2) connectivity and our bundled pricing which includes advanced features

Nextgen Group’s National VPLS is a premium performance, Ethernet (Layer 2), customer controlled

and flexible data service for connecting the multiple sites of Australian organisations.

VPLS (Virtual Private LAN Service) technology is internationally proven and defined by the IETF (the

Internet standards body). Nextgen Group’s implementation uses MPLS as the underlying technology

to deliver carrier grade QoS (Quality of Service) and network availability.

data sheetNextgen VPLS

Attribute ValueEVC (Ethernet Virtual Circuit) Type Multipoint-to-Multipoint (VPLS)

Maximum Number of UNIs 50 (no hard limit, advisory limit only)

EVC MTU Up to 9000 bytes

CE-VLAN ID Preservation Yes

CE-VLAN CoS Preservation Yes

Unicast Service Frame Delivery Deliver Unconditionally

Multicast Service Frame Delivery Deliver Unconditionally (flooding)

Broadcast / Unknown Unicast Frame Delivery Deliver Conditionally: up to 10% of EVC bandwidth at UNI or 256 Kbit/s, whichever is greater

Layer 2 Control Protocols Processing Tunnel all

VPLS Service AttributesNextgen Group’s VPLS is delivered using Metro Ethernet Forum (MEF) certified network equipment and is consistent with the Multipoint-to-Multipoint EVC definition, as described in MEF10.1 Section 6.1.2.1.

The following table describes applicable MEF Service Attributes:

Nextgen VPLSdata sheet

Key Features Summary• Flexible high speed access options

• Reliable self-owned underlying infrastructure

• Highly secure network architecture using MPLS

• Customer have full control of their network

• Support customer VLAN transparency, any Layer 3 protocols and addressing scheme

• Industry leading 7 classes of QoS

• Advanced usage and QoS reporting

• Up to 99.95 % service level agreement

Online Customer PortalWith the secure customer portal you have in depth analytics at your fingertips such as service performance, traffic utilisation and drops per QoS class so you can have a better understanding of how the network is performing to optimise workload delivery.

There are three basic components in the picture: Access Circuit A, VPLS and Access Circuit B. The resulting end-to-end delay between Site A and Site B is a sum of all three.

Nextgen Group’s transmission core network, represented by the VPLS ‘cloud’ in the illustration above, delivers low delay, high throughput performance nationwide.

The median round trip delay, experienced by a 540-byte Ethernet frame, travelling within or between major capital cities, is shown in the matrix below.

Any additional delays experienced by service frames as they travel across Access Circuit A and Access Circuit B are access circuit specific. Typical delays for common access circuit types are shown in the next section.

Perth Adelaide Melbourne Canberra Sydney BrisbanePerth < 6 ms

Adelaide < 33 ms < 6 ms

Melbourne < 42 ms < 16 ms < 6 ms

Canberra < 60 ms < 22 ms < 13 ms < 6 ms

Sydney < 66 ms < 27 ms < 19 ms < 9 ms < 6 ms

Brisbane < 67 ms < 40 ms < 30 ms < 22 ms < 19 ms < 6 ms

Network Delay (Latency)All network communications within any customer VPN can be represented as point to point. Given this understanding, the figure below is used to show network service components, which affect the end-to-end network delay (latency).

Any additional delays experienced by service frames as they travel across Access Circuit A and Access Circuit B are access circuit specific. Typical delays for common access circuit types are shown in the next section.

Customer Premises A

Access Circuit A Access Circuit B

VPLS POP VPLS POP Customer Premises B

CE NTU NTU CEVPLS PE

Service Provider’s Network

(VPLS)

Typical Core Network Latency

Perth Adelaide Melbourne Canberra Sydney BrisbanePerth <5ms <33ms <42ms <50ms <55ms <67ms

Adelaide <33ms <5ms <15ms <22ms <27ms <40ms

Melbourne <42ms <15ms <5ms <13ms <19ms <30ms

Canberra <50ms <22ms <13ms <5ms <9ms <22ms

Sydney <55ms <27ms <19ms <9ms <5ms <19ms

Brisbane <67ms <40ms <30ms <22ms <19ms <5ms

Note: Please refer to the Metro Ethernet Forum’s MEF10.1, “Ethernet Service Attribute Phase 2” for the definitions of the Service Attributes used on this Datasheet.

Metro Ethernet Forum Technical Specification Documents are available for download from the www.metroethernetforum.org web site.[1] 1522 bytes typical, jumbo frames up to 9000 bytes available on some access circuits[2] Depending on the equipment used at a location[3] Advisory limit[4] End to End Target Frame Delay is a sum of Frame Delay for A-end Access, EVC and B-end Access

VPLS Access Circuit Service Attributes

The connectivity between customer sites and Nextgen Group’s National VPLS ‘cloud’ is achieved via a wide range of access options.

The following table provides a summary of the service attributes of the three classes of Nextgen VPLS Access Circuits:

Attribute Class A Class B Class CTypical Technology Fibre Microwave SHDSL

Physical Medium (port type) A standard Ethernet PHY

Interface Speed 10/100 Mbit/s, 1 Gbit/s 10/100 Mbit/s

Typical Committed Information Rate (CIR) Range 2 Mbit/s to 1 Gbit/s

10 Mbit/s to 100 Mbit/s

Up to 10 Mbit/s

Mode Full Duplex

MAC Layer IEEE 802.3-2005

UNI MTU 1522 bytes [1]

Service Multiplexing(Multiple EVCs on one UNI)

Yes Yes/No [2]

NoBundling(Map several individual CE-VLANs to one EVC)

Yes

All to one bundling (Transparent VLANs - map all CE-VLANs to one EVC)

Yes Yes/No [2] Yes

Maximum Number of EVCs 50 [3] 20 1

Ingress Bandwidth Profile per Ingress UNIper-EVC shaping performed to EVC CIR at UNI-N

(customer must shape on egress at UNI-C)Ingress Bandwidth Profile per EVC

Ingress Bandwidth Profile per CoS Identifier

Egress Bandwidth Profile per Egress UNICIR, CBS, EIR and EBS configured per EVC (one class)

or per CoS (4 classes)Available Classifiers: 802.1p and DiffServ

Egress Bandwidth Profile per EVC

Egress Bandwidth Profile per CoS Identifier

Layer 2 Control Protocols Processing Varies depending on particular Access

Frame Delay, (Median RTT) [4] 4-10 ms up to 10 ms

Power requirements at customer site 240V AC 50Hz

Additional customer requirements

Phone1300 653 351

Emailinfo@nextgengroup.com.au

Webwww.nextgengroup.com.au

Nextgen Group. We go further.Nextgen Group is a leading supplier of network connectivity, data centre facilities and cloud services to Australian businesses, government agencies and telecommunication service providers. We’re committed to our clients’ success and focus on understanding their business and objectives to deliver tailored networking solutions that deliver meaningful results.

Version 1

Nextgen VPLSdata sheet