Huawei Quidway S5600 Series Operation Manual page 208

Operation Manual - DLDP
Quidway S5600 Series Ethernet Switches-Release 1510
Table 1-3 DLDP operating mode and neighbor entry aging
DLDP
operating
mode
Normal
mode
Enhanced
mode
IV. DLDP implementation
1) If the DLDP-enabled link is up, DLDP sends DLDP packets to the peer device, and
analyses and processes DLDP packets received from the peer device. DLDP in
different status sends different packets.
Table 1-4 Types of packets sent by DLDP
DLDP status
Active
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Probe
2) DLDP analyzes and processes received packets as follows:
In authentication mode, DLDP authenticates the packets, and discards those do
not pass the authentication.
DLDP processes the received DLDP packets.
Table 1-5 Process received DLDP packets
Packet type
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packet
Flush packet
Whether DLDP
probes neighbor
during neighbor during neighbor entry
entry aging
Yes (the neighbor entry
No ages after the entry
aging timer expires)
Yes
timer is enabled after
Yes
the entry aging timer
expires)
Advertisement packets, including those with or without RSY tags
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Probe packets
Extract neighbor
information
Delete the neighbor entry from the local device
Huawei Technologies Proprietary
1-5
Chapter 1 DLDP Configuration
Whether entry aging
timer is enabled
aging
(the enhanced
Packet types
Processing procedure
If this neighbor entry does not exist on the
local device, DLDP creates the neighbor entry,
enables the entry aging timer, and turns to
probe status.
If the neighbor entry already exists on the local
device, DLDP refreshes the entry aging timer.
Whether enhanced
timer is enabled
when entry aging
timer expire
No
Yes (When the
enhanced timer
expires, the local end
is set to single pass
status, and the
neighbor entry ages)