Transcript Implementing a National Co-Managed MPLS Neworkat RTH

Implementing a National Co-Managed
MPLS Network
WMO CBS
ET-CTS
Toulouse, France 26-30 May 2008
Allan Darling, NOAA’s National Weather Service
Background
 Backup RTH Washington site let to the need to replace
customer point-to-point circuits
 An MPLS network provided by Sprint with virtual IP addresses
used for all external services was the chose solution
 NWSTG MPLS network architecture was chosen as the
replacement for NWS national point-to-point circuits (NWSnet)
 NWSnet MPLS network architecture was chosen as the
replacement for NOAA national point-to-point circuits (NOAAnet)
 Over 70 sites migrated thus far
 Will replace over a dozen legacy NOAA networks
 Network to be utilized by all NOAA organizations
26-30 May 2008
WMO CBS - ET-CTS Toulouse, FR
2
Benefits
 Improved overall routing performance
 Replaces traditional hub-and-spoke architecture with
any-to-any architecture
 Addresses network single points of failure
 Carrier MPLS network reroutes around internal
failures
 Highly scalable / agile
 Reduces time to establish new pathways between
existing points on network
 No additional cost to establish and utilize new pathway
 Indirect cost: utilization of access point bandwidth
26-30 May 2008
WMO CBS - ET-CTS Toulouse, FR
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Benefits
 Consolidation leads to reduced management
overhead
 Centralized management, monitoring
 Self managed
 Carrier managed
 Co-managed (not typical but currently the model for
NOAAnet)
26-30 May 2008
WMO CBS - ET-CTS Toulouse, FR
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Lessons
 Acquisition schedule must be balanced against
implementation schedule


Buy access circuits too early – pay for unused resource
Buy access circuits too late – implementation delayed
awaiting resource
 Planning IP address management is particularly
important when migrating existing networks so as to
minimize disruption during migration
26-30 May 2008
WMO CBS - ET-CTS Toulouse, FR
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Lessons
 Important to understand Internet connectivity of
networks to be replaced to avoid asymmetric routes
when MPLS is implemented
 Legacy network security implemented via static
routing (application specific routing) must be
considered and re-implemented prior to migration to
MPLS
26-30 May 2008
WMO CBS - ET-CTS Toulouse, FR
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Lessons
 Carrier management policies may not address
organization’s operational needs


NOAA is currently co-managing with Sprint to give us
additional oversight and to maintain migration schedule
NOAA will take over management after migration is
complete
 Decision drivers
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Carrier planned maintenance outages cannot be scheduled
for RTH operational windows
Carrier responsiveness for addressing operational center
needs, particularly outside of the continental U.S.
Carrier not driven to meet NWS internal migration schedule
26-30 May 2008
WMO CBS - ET-CTS Toulouse, FR
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Backup Center Connectivity
26-30 May 2008
WMO CBS - ET-CTS Toulouse, FR
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Lessons
26-30 May 2008
WMO CBS - ET-CTS Toulouse, FR
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Lessons
26-30 May 2008
WMO CBS - ET-CTS Toulouse, FR
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Lessons
26-30 May 2008
WMO CBS - ET-CTS Toulouse, FR
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