Method and system for support of spanning tree peering and tunneling in a flood domain

摘要

A network element includes a first customer edge port (CEP) coupled to a customer network, a first and a second flood domain. The first and second flood domain each include one or more provider network ports associated with a provider network. The first CEP is configured to peer spanning tree protocol (STP) data units across a network, and receive and transmit a data unit to a first STP processing instance associated with the first CEP. The first STP processing instance is configured to determine whether the data unit is associated with the first or second flood domain, and forward the data unit to the determined flood domain. The network element includes a second CEP coupled to the customer network and the first flood domain. The second CEP is configured to tunnel STP data units across the provider network, receive and forward a second data unit to the first flood domain.

主权项

1. A network element comprising:
a first customer edge port (CEP) communicatively coupled to a customer network, a first flood domain, and a second flood domain, the first flood domain and the second flood domain each comprising one or more provider network ports associated with a provider network, the first CEP configured to peer spanning tree protocol (STP) data units across the provider network and further configured to:
receive a first data unit; andtransmit the first data unit to a first STP processing instance associated with the first CEP;the first STP processing instance configured to:
determine whether the first data unit is associated with the first flood domain or the second flood domain; andforward the first data unit to the determined flood domain; a second CEP communicatively coupled to the customer network and the first flood domain, the second CEP configured to tunnel STP data units across the provider network and further configured to:
receive a second data unit; andforward the second data unit to the first flood domain.