Method and system for updating blocked port information
A port information and port technology, which is applied in the field of blocking port information update in the Ethernet ring network, and can solve the problem of repeated refresh of the node to which it belongs.
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[0046] Example: such as image 3 Shown is a flow chart of the method for updating blocked port information of the present invention in a switchback scenario, including the following steps:
[0047] Step 101: The faulty link of the Ethernet ring network is restored or other protection switching requests are cleared.
[0048] Step 102: The node to which the ring protection link of the Ethernet ring network belongs starts a waiting recovery timer and enters a suspended state.
[0049] Step 103: The node to which the ring protection link of the Ethernet ring network belongs is in a suspended state, and waits for the recovery timer to expire.
[0050] Step 104: The node to which the ring protection link of the Ethernet ring network belongs blocks an adjacent port of the ring protection link, and sends a ring protection link blocking protocol frame to notify other nodes to switch back. Wherein, other nodes refer to: other nodes to which the ring protection link of the non-Ethernet...
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[0054] Example: Figure 4 For the Ethernet ring network topology diagram of the present invention, a link failure occurs between nodes S2 and S3. After the link is restored, the node S1 to which the ring protection link belongs starts the waiting recovery timer and enters a suspended state. The node S1 is in the Suspend the state and wait for the recovery timer to expire, then switch back, first block the adjacent port 11 of the ring protection link, send a ring protection link blocking protocol frame to notify other nodes to switch back, and the nodes contained in the ring protection protocol frame number is 1, and the index number of the blocked port is 0. Node S1 updates the refresh record information of port 11 to its own node number 1 and the index number 0 of port 11. When node S1 receives the ring protection protocol frame sent by itself, it passes In contrast, the node number and port index number included in the protocol frame are consistent with the refresh record in...
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