What is RSVP-TE?
Introduction to RSVP-TE and its uses
ReSerVation Protocol with Traffic Engineering (RSVP-TE) is one of the label distribution protocols supported by DC-MPLS. DC-RSVP provides a complete, scalable, and fault-tolerant source code implementation of RSVP-TE.
DC-RSVP is designed for OEMs building core and edge routers, as well as optical networking devices. It includes a wide range of protocol extensions for both packet and optical networks, including advanced features such as diffserv, GMPLS, OIF-UNI and OIF-NNI.
DC-RSVP is also available as a pre-integrated MPLS control plane, integrated with Data Connection's IP Routing software for complete control plane for optical and other devices.
The diagram below shows the architecture of the DC-RSVP software and its interfaces to other components.
DC-RSVP Features
RSVP-TE Protocol Function
The DC-RSVP software product includes the following RSVP protocol function.
- Full support of RSVP and its Traffic Engineering (TE) extensions
- RFC 2209
- RFC 3209 (TE extension)
- Refresh reduction
- Hello processing
- Link bundling
- Unnumbered interfaces
- Protection Switching
- e3e recovery per draft-ietf-ccamp-gmpls-recovery-e2e-signaling
- Fast re-route (both detour and facility methods supported per RFC 4090)
- IPv4 and IPv6 support
- DiffServ extensions (DIFFSERV object)
- LSP Pinning
- Make-before-break
- Diagnostic messages
- Resource affinities
- Authentication (INTEGRITY object using HMAC-MD5 algorithm)
- Optical Extensions
- RFC 3474
- Full GMPLS support
- Support for OIF-UNI client and network nodes
- Support for OIF-UNI
- Extensible for OEM specific requirements
- Support for private objects and TLVs
- Proprietary data transferred across external interfaces for OEM processing
- Support for proprietary MIB extensions
- Support for OEM specific authentication
Management and Integration
- Fully MIB manageable
- LSR MIB
- MPLS TE MIB
- Product management MIBs for consistent management interface
- Easily integrated with SNMP, CORBA, CMIP, CLI, Web or other management paradigms
- Pre-integrated CLI, XML/Web and SNMP management interfaces available through embeddedMINDTM from Silicon & Software Systems (S3).
- High availability and fault tolerance in management of configuration information when used with Configuration Safe Store
Carrier Class Design
- Scalability
- Optimized mainline for very fast LSP establishment and refresh processing
- Binary trees ensure scaling of O(ln(N)) with number of LSPs supported
- No hard-coded limits to number of interfaces or LSPs supported
- Designed to handle thousands of interfaces and millions of LSPs
- Distribution of components onto multiple cards
- Carrier class availability
- High availability through replication of config and state data for backup control plane
- Hot software upgrade
- Control plane restart with LSP survival
- Protection switching and fast re-route (includes e2e recovery)
- Availability and fault tolerance in management of configuration information possible with Configuration Safe Store
- See High Availability for more details
- Interoperability
- Major vendors: interoperates with all major implementations, including Cisco and Juniper
- UNH: We have successfully attended all the UNH interop events for testing all aspects of DC-MPLS. See http://www.ioh.unh.edu/consortiums/mplsServices/ for details.
- OIF UNI: Data Connection provided software to 9 of the 22 vendors participating in the OIF UNI Interoperability Demonstration at SuperComm in June 2001 (http://www.oiforum.com).
- We assist customers in their own testing, either in their labs or at customer field trials
- Guarantee: interoperability problems are treated as problems and fixed within the same schedules.
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For more information about Data Connection's MPLS products and expertise contact dcmpls@dataconnection.com.