Route generation method and device
US-2024356847-A1 · Oct 24, 2024 · US
Automation fallback to P2P LSPs for MLDP built multipoint-trees
US8948170B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8948170-B2 |
| Application number | US-201213361137-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 30, 2012 |
| Priority date | Nov 4, 2005 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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A method of using a point-to-point (P2P) label switched path (LSP) to transmit multicast data packets partially through a multiprotocol label switched (MPLS) network when one or more label switched routers (LSRs) of the MPLS are not multicast label distribution protocol (mLDP) enabled. The P2P LSP can be used to transmit multicast data packets to the head end of a point-to-multipoint (P2MP) LSP created with mLDP enabled LSRs. The P2MP LSP can be used to transmit the multicast data packets through the MPLS network to intended receivers that are external to the MPLS network. The P2MP LSP can be built from an egress edge LSR towards an ingress edge LSR, by mLDP enabled LSRs. The P2P LSP can be built from a core mLDP enabled LSR to the ingress edge LSR, across a non-mLDP enabled LSR between the core mLDP enabled LSR and the ingress edge LSR.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: a core router receiving a stacked label multicast packet from a first edge router via a point-to-point label switched path (LSP), wherein the stacked label multicast packet comprises a multicast packet, a top label associated with the point-to-point LSP, and a bottom label associated with a point-to-multipoint LSP; selecting whether to pop or swap the top label from the stacked label multicast packet, wherein the selecting co…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04L45/50Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8948170B2 cover?
- A method of using a point-to-point (P2P) label switched path (LSP) to transmit multicast data packets partially through a multiprotocol label switched (MPLS) network when one or more label switched routers (LSRs) of the MPLS are not multicast label distribution protocol (mLDP) enabled. The P2P LSP can be used to transmit multicast data packets to the head end of a point-to-multipoint (P2MP) LSP…
- Who is the assignee on this patent?
- Wijnands Ijsbrand, Boers Arjen, Meylor John S, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04L45/50. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).