Frame Relay Network
Definition:
A private network using dedicated bandwidth to connect two or more sites, using the Frame Relay protocol to manage traffic.
Provision:
Hermes provides multiple dedicated links between sites. All links terminate on a Verso Netperformer frame relay access device (FRAD) at each site. Permanent virtual circuits (PVCs) are then configured between sites. Sites can be fully or partially meshed. Interfaces for voice and data can be provided on FRADs.
Typical Network Diagram:
Features: | |
Speed/Bandwidth | Each PVC has a committed information rate (CIR) and a burst information rate (BIR), in each direction. Speeds vary between 32Kbps and 6Mbps. |
Interface | Data: RS530 DCE unless otherwise specified. Voice: FXS, FXO, ISDN BRI, ISDN PRI. |
Circuit Identifiers | DLCIs to be provided by Hermes or by client |
Flow control | BECN and FECN available |
Router configuration | Hermes can if required configure router interfaces |
Service Level Agreement: |
|
Latency | One way delay subject to physical design |
Errors | Bad frames under 0.001% |
Availability | Normally 99.98% excluding scheduled maintenance and solar outages minutes/month |
Compression | Layer 2 data compression techniques are normally utilised to provide up to 30% increase in data transmission speed over uncompressed links. |
Management | All links are fully managed |
Redundancy | Can be provided including automatic failover via secondary link or FRoIP VPN over internet |
Acceptance Testing | FRADs include diagnostic operation, typically 4 hours testing utilised. Testing also carried out in conjunction with customer to ensure that IP throughput being achieved. |
