Allied Telesis SwitchBlade x3100 Series User Manual

Introduction Introduction
7-73
Software Reference for SwitchBlade x3100 Series Switches (Network Management)
FIGURE 7-10 Processing of Incoming LLDP Packets
In Figure 7-10, the following are neighbors:
• Switch A and hosts 1, 2, and 3
• Switch A and Switch B
• Switch B and Switch C
Switch D is receiving LLDP packets describing switches B and E. However since LLDP is disabled in switch D, it
does not accept these LLDP packet and so has no LLDP awareness of either switch B or switch E. Switch D also
does not transmit any LLDP packets describing itself to switch B and switch E. As a result, Switch B and E are
not LLDP aware of D. Note that switch D does not forward the LLDP packets received from B onto E and vice-
versa. So switch B does not know about E and switch E does not know about B.
LLDP Neighbor Table
Switch A with LLDP
Switch D with LLDP
Disabled
LLDP Neighbor Table
No LLDP data for D
No LLDP data for E
No LLDP data for D
No LLDP data for B
Switch E with LLDP
lldp_example_in
Port Data
Port A2
Port A1
Port B1
Port B5
Port D3
Port D17
Port E1
Port B7
Port C3
A1
A1
A1
A2
Host 1 Data
Host 2 Data
Host 3 Data
Switch B Data
LLDP Neighbor Table
Switch B with LLDP
Port Data
B1
B7
Switch A Data
Switch C Data
LLDP Neighbor Table
Switch C with LLDP
Port Data
C3 Switch B Data
Device X
(Note 1)
(Note 2)
(Note 3)
Note 1 - Switch A and Hosts 1, 2, and 3 are LLDP neighbors
Note 2 - Switch A and Switch B are LLDP neighbors
Note 3 - Switch B and Switch C are LLDP neighbors
Host 1
LLDP Running
Hub or Other non_LLDP
Device
Host 2
LLDP Running
Host 3
LLDP Running
Device Y
Hub or Other non_LLDP
Device

Allied Telesis SwitchBlade x3100 Series Specifications

General

Brand	Allied Telesis
Model	SwitchBlade x3100 Series
Category	Switch
Language	English