Rrpp Packet Type - H3C S7500 Series Operation Manual

Operation Mannual – RRPP
H3C S7500 Series Ethernet Switches
VII. MAC address FDB
The Layer 2 forwarding database (FDB) on a switch is updated through the source
MAC address auto-learning function of the switch.
VIII. Timer
Two timers, Hello timer and Fail timer, are involved when the master node sends and
receives RRPP packets.
Hello timer: Defines the time interval at which the primary port of the master node
sends the health detection packet.
Fail timer: Defines the timeout time for the secondary port of the master node to
receive health detection packets. The value of Fail timer must be greater than or
equal to three times the Hello timer value.

1.1.2 RRPP Packet Type

The following table describes RRPP packet types.
Table 1-1 RRPP packets
Packet type
HEALTH (HELLO)
LINK-DOWN
COMMON-
FLUSH-FDB
COMPLETE-
FLUSH-FDB
EDGE-HELLO
MAJOR-FAULT
The master node sends the health detection packet (HELLO
packet) to detect whether the ring network is complete.
A transit node sends this packet to notify the master node
that a link is DOWN and the physical ring is disconnected.
The master node sends this packet to tell all the transit
nodes to refresh their respective MAC address FDBs.
The master node sends this packet to tell all the transit
nodes to refresh their respective MAC address FDBs and
unblock the ports in the blocked data VLANs.
This packet is generated by the edge node of a subring and
received by the assistant edge node in the same subring.
The subring uses this packet to check the integrity of the
primary ring in the home domain.
This packet is generated by the assistant edge node of a
subring. If the assistant edge node does not receive the
EDGE-HELLO from the edge node within the specified
period, it reports to the edge node that a fault exists in the
primary ring of the home domain.
1-4
Chapter 1 RRPP Configuration
Description