CPP Ericsson Connectivity Packet Platform

1
CPPEricsson Connectivity Packet Platform
Mikael Agnevik CPP system management
2
Processor Hierarchy

• Main Processor (MP)
• High service level
• Intended for central control and resource
  handling SW and for management services

BP
BP
BP
MPC

• MP Cluster
• Give redundancy on program level
• Enables SW Upgrade during execution

BP
BP

• Board Processor (BP)
• Aimed for board controlling SW
• Slightly lower service level

ICP
BP
BP
SPB
BP
ICP

• Special purpose Processor (SP)
• Aimed for data stream processing and signalling

SP
SP
SP
3
Robustness

• Redundant switch
• Redundant power
• Redundant inter subrack links
• Redundant signaling links
• MPs in cluster
• Fault tolerant database
• Pooled resources

4
Fault tolerant execution
MP2
MP1
Active program
Stand-by program
register
register
Store state
Fetch state
Activatestandby
Activatemaster
Activatemaster
Cluster Support
5
Program Upgrade
MP
Program Rev B
Program Rev A
Conv. program
Load
Load Start
Shutdown
Unload
S-down confirm
Done
Store state
Unload
Activate
Fetch state
Upgrade
Cluster Support
Ready
Commit