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Unaddressed device communication from within an MPLS network
US9065723B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9065723-B2 |
| Application number | US-201213433031-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 28, 2012 |
| Priority date | Apr 4, 2011 |
| Publication date | Jun 23, 2015 |
| Grant date | Jun 23, 2015 |
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Abstract
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An unaddressed device installed inline in a path of an MPLS network can communicate a packet from within the MPLS network to an upstream device without knowledge of the necessary MPLS labeling by sending the packet intentionally in the wrong direction: downstream. To communicate to an upstream device, the unaddressed device sends a packet downstream into the MPLS network on the opposite side and through the opposite outgoing port from that which would be used for a packet sent to the same device in a non-MPLS network. This behavior forces the MPLS network, when it next inspects the packet, to re-label it with the correct labeling to route the packet on a path back upstream to the recipient device. In this manner, the MPLS architecture is used to redirect or loop back packets from an unaddressed inline device to the upstream device.
First claim
Opening claim text (preview).
We claim: 1. A method for an unaddressed inline device (IUD) to send a packet to an upstream device in a Multiprotocol Label Switching (MPLS) network, the method comprising: identifying, at the IUD, the upstream device's address information, wherein the IUD comprises upstream input and output ports and downstream input and output ports, while not having a network address in the MPLS network, and wherein the upstream device is in communication with the IUD via the downstream input…
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Electricity · mapped topic
Electricity · mapped topic
- H04L43/026Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9065723B2 cover?
- An unaddressed device installed inline in a path of an MPLS network can communicate a packet from within the MPLS network to an upstream device without knowledge of the necessary MPLS labeling by sending the packet intentionally in the wrong direction: downstream. To communicate to an upstream device, the unaddressed device sends a packet downstream into the MPLS network on the opposite side an…
- Who is the assignee on this patent?
- Stevens Michael, Black Vonn L, Barrett Mark, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04L43/026. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 23 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).