Methods and apparatus for standard protocol validation mechanisms deployed over a switch fabric system

• US 9,438,533 B2
• Filed: 08/01/2014
• Issued: 09/06/2016
• Est. Priority Date: 12/29/2010
• Status: Active Grant

• Current Assignee: Juniper Networks Incorporated
• Original Assignee: Juniper Networks Incorporated
• Inventors: Mehra, Ashwani Kumar, Rajamani, Srikar, Saksena, Saurabh
• Primary Examiner(s): Lai, Andrew
• Assistant Examiner(s): LEE, ANDREW CHUNG CHEUNG
• Application Number:
  US14/449,685
• Publication Number:
  US 20140341045A1
• Time in Patent Office: 767 Days
• Field of Search: 370/237, 370/241, 370/359, 370/229, 370/384, 370/468
• US Class Current: 1/1
• CPC Class Codes: H04L 41/0654 using network fault recovery ring fault isolation or reconfiguration in loop networks without recovery actions by a network management system H04L12/437
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 43/04 Processing captured monitoring data, e.g. for logfile generation
• CPC Class Codes: H04L 43/50 Testing arrangements
• CPC Class Codes: H04L 45/24 Multipath
• CPC Class Codes: H04L 45/28 using route fault recovery
• CPC Class Codes: H04L 45/74 Address processing for routing
• CPC Class Codes: H04L 49/25 Routing or path finding in a switch fabric
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic

Abstract

An apparatus includes a destination edge device configured to receive a first validation packet according to a switch fabric validation protocol. The destination edge device is configured to validate multiple data paths through a distributed switch fabric from a source edge device to the destination edge device based on the first validation packet. The destination edge device is configured to send, in response to receiving the first validation packet, a second validation packet to a peripheral processing device. The destination edge device is also configured to send the second validation packet according to a validation protocol different from the first validation protocol.

Claims

1. An apparatus, comprising:

a destination edge device configured to receive, according to a first validation protocol, a first validation packet, the destination edge device configured to validate, based on the first validation packet, (1) a first data path through a distributed switch fabric from a source edge device to the destination edge device, and (2) a second data path through the distributed switch fabric from the source edge device to the destination edge device,

the destination edge device configured to send, in response to receiving the first validation packet and according to a second validation protocol different from the first validation protocol, a second validation packet to a peripheral processing device.

2. The apparatus of claim 1 wherein the second validation protocol is a virtual private local area network (LAN) service (VPLS) operations, administration and management (OAM) protocol.

3. The apparatus of claim 1, wherein the second validation protocol is one of an Institute of Electrical and Electronics Engineers (IEEE) 802.1ag protocol, an International Telecommunications Union (ITU) Y.1.731 protocol and a Multiprotocol Label Switching Transport (MPLS-TP) OAM protocol.

4. The apparatus of claim 1, wherein the peripheral processing device is directly coupled to the destination edge device.

5. The apparatus of claim 1, wherein the first validation packet can be sent to the distributed switch fabric in response to the source edge device receiving a third validation packet according to the second validation protocol.

6. The apparatus of claim 1 wherein the first data path from the plurality of data paths is a multicast data path and the second data path from the plurality of data paths is a unicast data path.

7. The apparatus of claim 1, wherein the peripheral processing device is compatible with the second validation protocol but not the first validation protocol.

8. A non-transitory processor-readable medium storing code representing instructions, which when executed by a processor, perform method steps of:

receiving, according to a first validation protocol, a first validation packet that is associated with a first status state indicator, the first validation protocol supporting a first number of status states of the first status state indicator;

validating, a plurality of data paths through a distributed switch fabric from a source edge device to a destination edge device based on the first validation packet;

defining, based on the first validation packet and according to a second validation protocol, a second validation packet that is associated with a second status state indicator, the second validation protocol supporting a second number of status states of the second status state indicator, the first number of status states different from the second number of status states; and

sending the second validation packet to a peripheral processing device that is compatible with the second validation protocol but that is not compatible with the first validation protocol.

9. The non-transitory processor-readable medium of claim 8, wherein the peripheral processing device is directly coupled to the destination edge device.

10. The non-transitory processor-readable medium of claim 8, wherein the code representing instructions to cause the processor to define the second validation packet includes code representing instructions to cause the processor to define a parameter of the second validation packet having two status states based on a parameter of the first validation packet having at least three status states.

11. The non-transitory processor-readable medium of claim 8, wherein a first data path from the plurality of data paths is a multicast data path, a second data path from the plurality of data paths is a unicast data path.

12. The non-transitory processor-readable medium of claim 8, wherein the second validation protocol is a virtual private local area network (LAN) service (VPLS) operations, administration and management (OAM) protocol.

13. The non-transitory processor-readable medium of claim 8, wherein the second validation protocol is one of an Institute of Electrical and Electronics Engineers (IEEE) 802.1ag protocol, an International Telecommunications Union (ITU) Y.1.731 protocol and a Multiprotocol Label Switching Transport (MPLS-TP) OAM protocol.

14. An apparatus, comprising:

a fabric validation module configured to receive, according to a first validation protocol, a first validation packet that is associated with a first status state indicator from a distributed switch fabric, the fabric validation module configured to parse the first validation packet to determine a status of (1) a first data path through the distributed switch fabric from a source edge device to a destination edge device, and (2) a second data path through the distributed switch fabric from the source edge device to the destination edge device, the first validation protocol supporting a first number of status states of the first status state indicator; and

a validation gateway module configured to receive, from the fabric validation module, an indicator of the status of the first data path and the status of the second data path, the validation gateway module configured to define, based on the indicator and according to a second validation protocol, a second validation packet to be sent to a peripheral processing device compatible with the second validation protocol but not the first validation protocol, the second validation protocol supporting a second number of status states of the second status state indicator, the first number of status states different from the second number of status state.

15. The apparatus of claim 14, wherein the fabric validation module and the validation gateway module are at the destination edge device.

16. The apparatus of claim 14, wherein the first data path is a multicast data path and the second data path is a unicast data path.

17. The apparatus of claim 14, wherein the fabric validation module is configured to receive the first validation packet in response to the source edge device receiving a third validation packet according to the second validation protocol.

18. The apparatus of claim 14, wherein the second validation protocol is a virtual private local area network (LAN) service (VPLS) operations, administration and management (OAM) protocol.

19. The apparatus of claim 14, wherein the second validation protocol is one of an Institute of Electrical and Electronics Engineers (IEEE) 802.1ag protocol, an International Telecommunications Union (ITU) Y.1.731 protocol and a Multiprotocol Label Switching Transport (MPLS-TP) OAM protocol.

20. The apparatus of claim 14, wherein peripheral processing device is directly coupled to the destination edge device.