implementing a national co-managed mpls network wmo cbs et-cts toulouse, france 26-30 may 2008 allan...
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Implementing a National Co-Managed MPLS Network
Implementing a National Co-Managed MPLS Network
WMO CBSET-CTS
Toulouse, France 26-30 May 2008Allan Darling, NOAA’s National Weather
Service
WMO CBSET-CTS
Toulouse, France 26-30 May 2008Allan Darling, NOAA’s National Weather
Service
26-30 May 2008 WMO CBS - ET-CTS Toulouse, FR 2
BackgroundBackground
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 solutionNWSTG 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 farWill replace over a dozen legacy NOAA networksNetwork to be utilized by all NOAA organizations
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 solutionNWSTG 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 farWill replace over a dozen legacy NOAA networksNetwork to be utilized by all NOAA organizations
26-30 May 2008 WMO CBS - ET-CTS Toulouse, FR 3
BenefitsBenefits Improved overall routing performanceReplaces traditional hub-and-spoke architecture
with any-to-any architectureAddresses network single points of failure Carrier MPLS network reroutes around internal
failuresHighly scalable / agile Reduces time to establish new pathways
between existing points on networkNo additional cost to establish and utilize new
pathwayIndirect cost: utilization of access point bandwidth
Improved overall routing performanceReplaces traditional hub-and-spoke architecture
with any-to-any architectureAddresses network single points of failure Carrier MPLS network reroutes around internal
failuresHighly scalable / agile Reduces time to establish new pathways
between existing points on networkNo additional cost to establish and utilize new
pathwayIndirect cost: utilization of access point bandwidth
26-30 May 2008 WMO CBS - ET-CTS Toulouse, FR 4
BenefitsBenefitsConsolidation leads to reduced management
overheadCentralized management, monitoring
Self managedCarrier managedCo-managed (not typical but currently the
model for NOAAnet)
Consolidation leads to reduced management overhead
Centralized management, monitoringSelf managedCarrier managedCo-managed (not typical but currently the
model for NOAAnet)
26-30 May 2008 WMO CBS - ET-CTS Toulouse, FR 5
LessonsLessonsAcquisition schedule must be balanced against
implementation schedule Buy access circuits too early – pay for unused
resource Buy access circuits too late – implementation
delayed awaiting resourcePlanning IP address management is particularly
important when migrating existing networks so as to minimize disruption during migration
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 resourcePlanning 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 6
LessonsLessonsImportant 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
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 7
LessonsLessonsCarrier 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
completeDecision drivers
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
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
completeDecision drivers
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 8
Backup Center ConnectivityBackup Center Connectivity
26-30 May 2008 WMO CBS - ET-CTS Toulouse, FR 9
LessonsLessons
26-30 May 2008 WMO CBS - ET-CTS Toulouse, FR 10
LessonsLessons
26-30 May 2008 WMO CBS - ET-CTS Toulouse, FR 11
LessonsLessons