Qtech QSW-2900-24T-AC [191/209] Errp packets

Qtech QSW-2900-24T-AC [191/209] Errp packets
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16.3.9 ERRP Packets
Table 1 shows the types of ERRP packets and their functions.
Table 1 ERRP packet types and their functions
Type Description
Health
The master node initiates Health packets to detect the integrity of a ring in a
network.
Link-Down
The transit node, the edge node or the assistant edge node initiates
Link-Down packets to notify the master node the disappearance of a ring in
case of a link failure.
Common-Flush-FDB
The master node initiates Common-Flush-FDB packets to notify the transit
nodes to update their own MAC entries and ARP entries when an ERRP ring
transits to disconnect state.
Complete-Flush-FDB
The master node initiates Complete-Flush-FDB packets to notify the transit
nodes to update their own MAC entries and ARP entries, and release from
blocking ports temporarily when an ERRP ring transits into health state.
Edge-Hello
The edge node initiates Edge-Hello packets to examine the links of the
primary ring between the edge node and the assistant edge node.
Major-Fault
Assistant edge node initiates Major-Fault packets to notify the edge node of
a failure when a link of primary ring between edge node and assistant edge
node is torn down.
16.4 Typical ERRP Networking
Here are several typical networking applications.
16.4.1 Single ring

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