Guidelines And Limitations For Reflective Relay - Cisco Nexus 9000 Series Configuration Manual

Guidelines and Limitations for Reflective Relay

• Physical domains—virtual domains are not supported.
• Physical ports and port channels—Does not support Cisco Fabric Extender (FEX) and blade servers. If
Guidelines and Limitations for Reflective Relay
Reflective relay has the following configuration guideline or limitation:
• Beginning with Cisco Nexus Release 7.0(3)I7(1), Cisco Nexus N9K-C93180XX-EX switches support
• You must configure all server facing interfaces to support reflective relay.
Configuring Reflective Relay Using the NX-OS CLI
Reflective relay is disabled by default; however, you can enable it on a port or port channel as a Layer 2
interface policy on the switch. In the NX-OS CLI, you can use a template to enable reflective relay on multiple
ports or you can enable it on individual ports.
Procedure
Step 1 configure terminal
Example:
switch# configure terminal
switch(config)#
Enters global configuration mode.
Step 2 interface ethernet 1/2
Example:
switch(config)# interface ethernet 1/2
switch(config-if)#
Enables the port.
Step 3
switchport mode virtual-ethernet-bridge
Example:
switch(config-if)# switchport mode virtual-ethernet-bridge
switch(config-if)#
Configures the Layer 2 port as a host port for the reflective relay feature.
Step 4
[no] switchport virtual-ethernet-bridge
Example:
switch(config-if)# switchport virtual-ethernet-bridge
Enables the reflective relay feature.
Note
Cisco Nexus 9000 Series NX-OS Layer 2 Switching Configuration Guide, Release 7.x
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reflective relay is enabled on an unsupported interface, a fault is raised, and the last valid configuration
is retained. Disabling reflective relay on the port clears the fault.
the switching option, reflective relay.
The reflective relay feature is only supported on access or trunk
ports.
Configuring Reflective Relay for Layer2 Switching