发明名称 |
Multi-protocol support over ethernet packet-switched networks |
摘要 |
Described are methods and communications network for carrying pseudowires over packet-switched network. A communication network includes a packet-switched network (PSN), a first provider edge (PE) device in communication with a second PE device through the PSN, and a pseudowire (PW) established between the PE devices for emulating a service across the PSN. The PW has a Virtual Circuit Connection Verification (VCCV) control channel that carries an Ethernet Operations, Administration, and Maintenance (OAM) message. In some embodiments, various data plane encapsulation formats enable a PW to emulate an Ethernet or a non-Ethernet service over an Ethernet PSN. Each encapsulation format includes an Ethernet tunnel header and a PW header that encapsulates an Ethernet or non-Ethernet payload. |
申请公布号 |
US9106586(B2) |
申请公布日期 |
2015.08.11 |
申请号 |
US201414573139 |
申请日期 |
2014.12.17 |
申请人 |
RPX Clearinghouse LLC |
发明人 |
Mohan Dinesh;Balus Florin |
分类号 |
H04L12/28;H04L12/721;H04L12/723;H04L12/741;H04L12/46 |
主分类号 |
H04L12/28 |
代理机构 |
Schmeiser, Olsen & Watts LLP |
代理人 |
Schmeiser, Olsen & Watts LLP |
主权项 |
1. A network node for connection between an Ethernet packet-switched network (EPSN) configured to provide Provider Backbone Bridging (PBB) and a Multi-Protocol Label Switched (MPLS) network to emulate a service across the EPSN and the MPLS network, the network node comprising:
at least one pseudo-wire (PW) processor configured to cooperate with edge nodes of the EPSN and the MPLS network to establish a pseudo-wire over the EPSN, through the network node, and over the MPLS network; and at least one packet switched network (PSN) processor configured: to replace MPLS tunnel information in packets received from the MPLS network on the pseudo-wire with Ethernet tunnel information before forwarding the packets with the Ethernet tunnel information on the pseudo-wire over the EPSN; and to replace Ethernet tunnel information in packets received from the EPSN on the pseudo-wire before forwarding the packets with the MPLS tunnel information on the pseudo-wire over the MPLS network. |
地址 |
San Francisco CA US |