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Virtual Private<br>Network<br>Service<br>(IPVPN/EVPN)

Virtual Private

Product Details

Based on broadband IP network, the private line service of Telstra PBS virtual private network (VPN) uses MPLS (Multi-Protocol Label Switching) technology to build enterprise IP private network on private IP networks and realize multi-service broadband connection of data, audio and image. Combining differential services, traffic engineering and other related technologies, Telstra PBS can provide users with high quality services.

Virtual Private Network Applications

Audio telephone system

Through the establishment of audio gateway and telephone system, corporate headquarters and branches can use internal audio communication to minimise telephone bills.

ERP system

Ensure network quality and data privacy, and assist company’s internal service system to run efficiently.

Data application

Data transfer between private networks strengthens the communication between offices and enables more secure communications.

Video conference

Effectively utilising company’s existing business broadband resources and use multi-point video conferences to reduce communication costs.

Mail system

Build company’s internal mail system, so receiving and sending mails become more convenient and efficient.

Telstra PBS adopts flexible QoS (Quality of Service) to make sure services with high priority (audio and video) are transmitted first. When services with higher priority are not being utilised, the idle bandwidth can then be released for those services with lower priority.

Product Category

Virtual Private Network (Layer 3) (IPVPN)

Telstra PBS’s IPVPN license covers the whole of Mainland China (excluding Sinkiang and Tibet) and has the following advanced technical features:

  • Support 5 CoS (Class of Service)
  • Internet + IPSec access/backup
  • VRF-Lite
  • IP multicast
  • SSL VPN access

Value-added services: 

SRA (Secure Remote Access) 

IPSec VPN technology is independent of applications. It encrypt original IP information with its own packets, thus can hide all application protocol information. Through the establishment of IPSec encrypted tunnel, all kinds of connections can be achieved, such as Web, E-mail, file transfer and VoIP etc., and each transfer directly corresponds to relevant server behind the VPN gateway. As the biggest advantage of IPSec VPN, its customer supports all IP layer protocols and is completely transparent to application layer protocols.

  • Cost-effectively utilise customers’ existing Internet lines to build IPSec tunnels and is suitable for small branches;
  • Short installation period, thus can be used as an alternative for emergency opening;
  • Multiple access platform (Shenzhen/Beijing/Shanghai) support to achieve the best access effect

SRB (Secure Remote Backup)

  • Highly secure double-line backup mechanism: use different operator lines or different access nodes as backup;
  • IPSec VPN backup mechanism: use customers’ own Internet bandwidth and adopt IPSec VPN access, which is safe, reliable and inexpensive

Virtual Private Network (Layer 2) (EVPN)

Telstra PBS provides EVPN services to the majority of Tier-One and Tier-Two cities in China. Customers can choose EVPL (Point-to-Point Layer 2 Network) or VPLS (Multipoint-to-Multipoint Layer 2 Network) based on their needs.

EVPL: Point-to-Point Layer 2 Link

  • Dedicated physical ports
  • Point-to-Point Ethernet WAN connection between two Customer Access Ports
  • Rate limit per port
  • Support VLAN pass through
  • No need to obtain MAC address
  • No Class of Service

VPLS: Multi-Point to Multi-Point Layer 2 Network

  • Dedicated physical port at each site of the EVC
  • A fully meshed single Ethernet network
  • Independently design, manage and control how each sites communicate with each other by MAC address learning
  • Unique Virtual Forwarding Instance (VFI) for each customer to ensure secure communications across the Telstra PBS
  • Support VLAN and protocol transparency
  • Support 5 types of Class of Service


High-performance Hardware Platform Devices

  • Key device: Cisco ASR 9000 Series
  • Access layer device of backbone network: Cisco 1000 Series
  • Switching device: Cisco 4500 & 3700 Series

Backbone Network

  • Circuit protection design, double node design
  • Each PoP uses diversified paths to core PoP
  • Automatic failover design

Product and Service

  • Management of Class of Service
  • Multicast Function
  • Support both IPVPN and DIA services on the same physical circuit
  • Backup line available


  • Covering most of economic developed regions
  • Connected with the data centres

Services and Commitment

Active Monitoring Service

Telstra PBS highly values customer experience. Our active monitoring system can provide real-time monitoring for the services that customers use. Once abnormality is detected, our after-sales service team will contact customers in the first instance to confirm and solve the problem so as to ensure service quality.

Response Time of Services

Items  Normal customer VIP customer
Active monitoring service 24/7  24/7 
Hotline response time  <=15 seconds  <=15 seconds 
Response time to the fault reported by customer
(initial reply on time needed via phone or email)
<=45 minutes  <=15 minutes 
Actively monitor warning signals and inform customer (expect lead time required to fix the fault via phone or email) <=45 minutes  <=15 minutes 
Turn on ticket for customer <=20 minutes  <=10 minutes 
Confirm with customer that network service has returned to normal <=60 minutes  <=30 minutes 
Issue fault report <=5 working days  <=3 working days