
© 2005 Extreme Networks, Inc. All Rights Reserved
Switch
Switch
Switch
Switch
Switch
Switch
Switch
Switch
Switch
Switch
Switch
Switch
Customer
Site A
Customer
Site B
Customer
Site C
NEW
Switch
Switch
Switch
• How many switches must be reconfigured when the additional site (Site C) is
added? Now just the LERs must be reconfigured.
• Only 3 MPLS switches must be reconfigured; other nodes require no config
change but it is normal a Multicast Protocol.
• RSVP-TE SIGNALING SETS UP LSP ON LSR’s ( Full Meshed Mode )
LSP Site A to Site B
LSP Site A to Site C
LSP Site B to Site C
MPLS RSVP-TE: Simplifying Provisioning
Resource Reservation Protocol - Traffic Extension RFC3209
Rate limiting can be done at ingress, and RSVP-TE “reserves” bandwidth for the LSP, and ensures no oversubscription.
LSP = label switched
paths
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