PPT Slide
INET’01 - Technology Summit
Gergely Molnár, Sándor Albrecht, András Oláh Phd.
Ericsson Research, Hungary
Email: {Gergely.Molnar,Sandor.Albrecht, Andras.Olah}@eth.ericsson.se
Postal address: Budapest Laborc u. 1. H-1037, Hungary
Configuration management of the newest converged datacom/telecom networks is not an easy thing. These kinds of networks will consist of tens of thousands of routers. The configuration management of such a complex and large network is a challenging task that requires a novel approach. Our concept is called network-wide operation based Directory Enabled Networking. This means raising the level of abstraction at which the operator can manipulate the network configuration leads to a more efficient solution and implementing this with the DEN architecture.
Key objectives of this work:
- analyze the configuration management case of this new kind of networks
- find an efficient cost and time effective way for configuration management
- analyze the effectiveness of network-wide operation based DEN management
Network-wide operation concept
Important characteristics:
- number of routers close to the number of base stations
- there are additional aggregation routers and routers in other nodes
- the network is spread on as big geographical area
- central management is necessary
IP based 3G mobile network
- the managed objects are handled on their logical level not on element level
- the user configures the managed object directly and indirectly the relevant routers
- the required configuration is validated on the model before executing
- vendor independent approach
- additional necessary configurations are done by the application
- the element management is made by the application not the user
- the analysis can assure the correct execution sequence from the central point
Example - OSPF area configuration, setting the area ID
an OSPF area containging 500 routers
Network-wide operation based DEN
step-by-step with CLI or SNMP
One step, setup only the managed object
Network-wide operation based DEN
- Identifying the target routers for the configuration is made by the user
- the element management is made by the user (node-by-node)
- if high number of target routers are then hard to see each side- effect
- the user sees the network configuration on per-element basis
- Identifying the target routers for configuration is made by the application
- the element management is made by the application
- the application can easily analyse the operation and find possible errors and identify consequences even if high number of target routers are
- the user sees the network configuration on several level, e.g. the OSPF configuration on domain, area, link, interface and process level