Configuring Vlags In Multiple Layers; Configure Layer 2/3 Border Switches; Configure Switches In The Layer 2 Region - Lenovo ThinkSystem NE2552E Application Manual

Configuring VLAGs in Multiple Layers

Configure Layer 2/3 Border Switches

Configure Switches in the Layer 2 Region

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Figure 21 shows an example of VLAG being used in a multi‐layer environment.
Following are the configuration steps for the topology.
Figure 21. VLAG in Multiple Layers
Layer 2/3 Border
Layer 2 Region
with multiple levels
VLAG 3
VLAG 3
VLAG
Peers A
Switch C
VLAG 1
LAG
Servers
Configure ports on border switch as follows:
NE2552E(config)# interface port 1,2
NE2552E(config-if)# lacp key 100
NE2552E(config-if)# lacp mode active
NE2552E(config-if)# exit
Repeat these steps for the second border switch.
Consider the following:
 ISL ports on switches A and B ‐ ports 1, 2
 Ports connecting to Layer 2/3 ‐ ports 5, 6
 Ports on switches A and B connecting to switches C and D: ports 10, 11
 Ports on switch B connecting to switch E: ports 15, 16
 Ports on switch B connecting to switch F: ports 17, 18
LAG
VLAG 5
ISL
Switch A
ISL
Switch D
LACP-capable
Switch
Switch G
Chapter 11: Virtual Link Aggregation Groups
LACP-capable
Routers
LAG
VLAG 6
VLAG
Peers C
Switch B
LAG
VLAG 4
ISL
Switch E Switch F
VLAG 2
LAG
LACP-capable
Server
VLAG
Peers B
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