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Nextgen VPLS Data Sheet

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  • 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 Groups 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 Groups 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 Groups 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

    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 Groups 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


    Service Providers Network


    Typical Core Network Latency

    Perth Adelaide Melbourne Canberra Sydney BrisbanePerth

  • Note: Please refer to the Metro Ethernet Forums 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 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 Groups 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)


    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

    [email protected]

    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. Were committed to our clients success and focus on understanding their business and objectives to deliver tailored networking solutions that deliver meaningful results.

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    Nextgen VPLSdata sheet