Packet Switching Core
Pyro performs and supports below activities in PS core network.
Planning
- Packet & Circuit Core Network Design & Development
- Capacity planning SGSN, GGSN, P-GW and MME as per the business requirements
- PS Network capacity dimensioning, optimization
- Up gradations of PS core nodes as per OEM guidelines
Installation and Commissioning
- Configurations done for new connectivity in SGSN and as wells as in Routers
- New GB links configuration for GB over FR interface and Gb over IP interfaces
- Network IP path routing for different interfaces & services
- IP pool augmentation of various APNs
- Direct Tunnel feature configuration for RNCs
- Configuration of new services and features at GGSN and creating the test profile for the new services to check the services are working or not before going to live the services
- Migration of BSC’s and RNC’s from One SGSN to another SGSN
- Implementation of new applications at GGSN for different APNs
Operation and Maintenance
- Trouble shooting and rectification of SGSN, GGSN, CG, DNS, PCRF, OCS
- Trouble shooting & rectification of alarms escalated due to various issues in all Packet core Nodes
- Preparing MOP’s for network tuning
- URL’s blocking in GGSN as per Customer request
- Testing of new applications at GGSN for different APNs
- Roaming configuration at SGSN end
- Bandwidth augmentation for different packet core interfaces
- User trace file analysis to resolve network issues and customer complaints like home, in-roamer and as well as out roamer issues
- Analysis of ping & trace-root response to sort out various interface issues
- Periodic health check of packet core and datacom (Routers, Switches, Firewalls) nodes
- Support to Project team in AT (RA validation, Customer AT and TAC handover)
- Taking the CDR backup up’s and Command log Backup’s on daily basis and maintaining the tracker
- White listing of IP’s for different vendors in GGSN
- Taking the SGSN and GGSN backup up’s on daily basis and maintaining the tracker
- Verifying performance reports of SGSN & GGSN for KPI analysis
