Inter-Chassis Communication Protocol for Layer 2 Virtual Private Network (L2VPN) Provider Edge (PE) Redundancy

Martini, L.; Salam, Samer; Sajassi, Ali; Bocci, Matthew; Matsushima, Satoru; Nadeau, Thomas D.

doi:10.17487/rfc7275

Cited by 6 publications

(22 citation statements)

References 7 publications

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“…In these deployments, PE node/link redundancy is achieved using Multi-Chassis Link Aggregation (MC-LAG) and ICCP [RFC7275]. This, however, places two restrictions on the interconnection: the two domains must be interconnected using Ethernet links, and the links must be homogeneous, i.e., of the same speed, in order to be aggregated.…”

Section: Motivationmentioning

confidence: 99%

“…Furthermore, in certain situations MP-BGP is not deployed for VPLS. The redundancy solution described in this document reuses ICCP [RFC7275] and PW redundancy [RFC6718] to provide fast convergence.…”

Section: Motivationmentioning

confidence: 99%

“…PW redundancy application procedures are described in Section 9.1 of [RFC7275]. When a PE node encounters a failure, the other PE takes over.…”

Section: Network Use Casementioning

confidence: 99%

“…When a PE node encounters a failure, the other PE takes over. This document reuses the PW redundancy mechanism defined in [RFC7275], with new ICCP switchover conditions as specified in following section.…”

Section: Network Use Casementioning

confidence: 99%

“…The solution relies on the use of the Inter-Chassis Communication Protocol (ICCP) [RFC7275] to coordinate between the two redundant edge nodes, and use of PW Preferential Forwarding Status Bit [RFC6870] to negotiate the PW status. There is no change to any protocol message formats and no new protocol options are introduced.…”

Section: Introductionmentioning

confidence: 99%

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Redundancy Mechanism for Inter-domain VPLS Service

Chen¹,

Cai²,

Liu³

et al. 2014

Self Cite

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In many existing Virtual Private LAN Service (VPLS) inter-domain deployments (based on RFC 4762), pseudowire (PW) connectivity offers no Provider Edge (PE) node redundancy, or offers PE node redundancy with only a single domain. This deployment approach incurs a high risk of service interruption, since at least one domain will not offer PE node redundancy. This document describes an inter-domain VPLS solution that provides PE node redundancy across domains.

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Section: Motivationmentioning

confidence: 99%

Section: Motivationmentioning

confidence: 99%

“…PW redundancy application procedures are described in Section 9.1 of [RFC7275]. When a PE node encounters a failure, the other PE takes over.…”

Section: Network Use Casementioning

confidence: 99%

Section: Network Use Casementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Redundancy Mechanism for Inter-domain VPLS Service

Chen¹,

Cai²,

Liu³

et al. 2014

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Eunomia: Enabling User-Specified Fine-Grained Search in Symbolically Executing WebAssembly Binaries

Zhao

Wang

et al. 2023

Proceedings of the 32nd ACM SIGSOFT International Symposium on Software Testing and Analysis

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Although existing techniques have proposed automated approaches to alleviate the path explosion problem of symbolic execution, users still need to optimize symbolic execution by applying various searching strategies carefully. As existing approaches mainly support only coarse-grained global searching strategies, they cannot efficiently traverse through complex code structures. In this paper, we propose Eunomia, a symbolic execution technique that supports fine-grained search with local domain knowledge. Eunomia uses Aes, a DSL that lets users specify local searching strategies for different parts of the program. Eunomia also isolates the context of variables for different local searching strategies, avoiding conflicts. We implement Eunomia for WebAssembly, which can analyze applications written in various languages. Eunomia is the first symbolic execution engine that supports the full features of WebAssembly. We evaluate Eunomia with a microbenchmark suite and six real-world applications. Our evaluation shows that Eunomia improves bug detection by up to three orders of magnitude. We also conduct a user study that shows the benefits of using Aes. Moreover, Eunomia verifies six known bugs and detects two new zero-day bugs in Collections-C. CCS CONCEPTS• Security and privacy → Software security engineering; • Software and its engineering → Software verification and validation.

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Controlling State Advertisements of Non-negotiated LDP Applications

Raza¹,

Boutros²

2015

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This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7473.

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Inter-Chassis Communication Protocol for Layer 2 Virtual Private Network (L2VPN) Provider Edge (PE) Redundancy

Cited by 6 publications

References 7 publications

Redundancy Mechanism for Inter-domain VPLS Service

Redundancy Mechanism for Inter-domain VPLS Service

Eunomia: Enabling User-Specified Fine-Grained Search in Symbolically Executing WebAssembly Binaries

Controlling State Advertisements of Non-negotiated LDP Applications

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