Transcript A Transactional Approach to Configuring Telecommunications

A Transactional Approach to
Configuring Telecommunications
Services
Tim Kempster
([email protected])
Changing Environment
• Telecommunications providers now route
voice, data, fax and broadband services over
wide area IP networks.
• Routers (Network Nodes) are becoming
more intelligent and programmable e.g.
Intel IXP1200 vs ASIC.
• How do we manage and reconfigure these
Networks?
Simple Network Model
•A Transport Medium (Fiber, satellite, microwave)
•Network Nodes (routers, switches, relays)
MIB
MIB
MIB
MIB
MIB
Current Management Techniques
• Each Network Node (NN) has a MIB which
contains fields that can be read and or
written to.
• Currently, SNMP supports GetRequest
and SetRequest Methods on fields in
the MIB.
Motivation for a Transactional
Approach
• A reconfiguration task often requires atomic
changes to, and reads form, MIBs at several
network nodes.
• When reading several MIB values it is
useful to see a consistent view. We should
not read the partial updates of other
reconfiguration tasks.
The Solution