АМАТЕК AN-SGM28P24-400 [131/322] Multi eaps domain

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Forwarding), refresh two or three own forwarding, send RING-DsOWN-FLUSH-FDB EAPS

Domain notify the other Transit to refresh its forwarding table, to learn the two or three layer

forwarding。

9.3.3 Ring restoration

Master Node sends HEALTH packets from its Primary Port, regardless of the ring Complete

or Failed or otherwise. When Master Node is in the Failed state, once the HEALTH protocol

packet is received from its Secondary Port, the loop will revert to the Complete state. Then Master

Node will set the Secondary Port state to blocking state, refresh two or three own forwarding, and

sending a RING-UP-FLUSH-FDB packet, notify other equipment refresh two or three own

forwarding, to learn two or three layer forwarding。

In the Transit Node port, from LINK DOWN back to LINK UP and Master Node, it is found

that Master Node Secondary Port may still be in the Forwarding state during loop restoration, in

which case a temporary ring will be created. Therefore, in the Transit Node in a port is LINK UP,

another LINK DOWN port has become LINK UP, Transit Node to enter into a "Forwarding"

(PRE-FORWARDING), in this state behind the LINK UP port will be in the Pre-forwarding state,

not transmit business data, interrupt the possible data loop. Wait until the Master Node recovery

and send RING-UP-FLUSH-FDB, Transit Node received the packet after the node state transition

to the LINK-UP state, Pre-forwarding state of the port is set to the Forwarding state, restore the

normal transmission of business data。

If Transit Node does not receive the RING-UP-FLUSH-FDB protocol packet, it will be set to

the Forwarding state by the port of the Pre-forwarding state after doubling the fail-time time。

9.3.4 Extreme compatible with EAPS

The product of Extreme company is the first to support EAPS manufacturers, series devices

support EAPS protocol is to follow the RFC3619 standard; and EAPS protocol and RFC3619

Extreme protocol equipment package definition there are some differences. The EAPS protocol

supported by the device of the network can be fully compatible with the Extreme device, and the

compatible switch is open under default。

9.3.5 Multi EAPS Domain

series devices can support multiple EAPS Domain, which supports 16。