Operation Manual – DLDP
H3C S5500-EI Series Ethernet Switches
Chapter 1 DLDP Configuration
1-8
z
The packet is dropped if the setting of the interval for sending Advertisement
packets it carries conflicts with the corresponding local setting.
z
Other processes.
Table 1-5
Procedures for processing different types of DLDP packets
Packet type
Processing procedure
If the corresponding neighbor entry does not
exist, creates the neighbor entry, triggers the
Entry timer, and transits to Probe state.
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packet with
RSY tag
Retrieving the
neighbor
information.
If the corresponding neighbor entry already
exists, resets the Entry timer and transits to
Probe state.
If the corresponding neighbor entry does not
exist, creates the neighbor entry, triggers the
Entry timer, and transits to Probe state.
Normal
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packet
Retrieves the
neighbor
information.
If the corresponding neighbor entry already
exists, resets the Entry timer.
If yes, no process is performed.
Flush packet
Determines
whether or not
the local port is
in Disable
state.
If not, removes the corresponding neighbor
entry (if any).
If the corresponding neighbor entry does not
exist, creates the neighbor entry, transits to
Probe state, and returns Echo packets.
Probe packet
Retrieves the
neighbor
information.
If the corresponding neighbor entry already
exists, resets the Entry timer and returns Echo
packets.
If the corresponding neighbor entry does not
exist, creates the neighbor entry, triggers the
Entry timer, and transits to Probe state.
If the neighbor information it
carries conflicts with the
corresponding locally maintained
neighbor entry, drops the packet.
Echo packet
Retrieves the
neighbor
information.
The
correspon
ding
neighbor
entry
already
exists
Otherwise, sets the flag of the
neighbor as two-way connected. In
addition, if the flags of all the
neighbors are two-way connected,
the device transits from Probe
state to Advertisement state and
disables the Echo timer.
If yes, no process is performed.
Disable packet
Check to see if
the local port is
in Disable
state.
If not, the local port transits to Disable state.