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| Sun Ethernet Fabric Operating System Uplink Port Trailing Administration Guide

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### Configure NEM24p-0

1. Start the configuration with all ports and the default VLAN shut down.

   Also, enable the Uplink port trailing feature.

   Tip - It is a best practice to start the configuration with all the ports and default VLAN shut down. Disable GVRP and GMRP, because dynamic VLAN learning is not suggested.

       NEM24p-0 SEFOS# configure terminal
       NEM24p-0 SEFOS(config)# set gvrp disable
       NEM24p-0 SEFOS(config)# set gmrp disable
       NEM24p-0 SEFOS(config)# set port-channel enable
       NEM24p-0 SEFOS(config)# set uplink-trailing enable
       % Enabling Uplink Trailing Module
       NEM24p-0 SEFOS(config)# interface vlan 1
       NEM24p-0 SEFOS(config-if)# shutdown
       NEM24p-0 SEFOS(config-if)# no ip address
       NEM24p-0 SEFOS(config-if)# exit
       NEM24p-0 SEFOS(config)# interface range extreme-ethernet 0/1-24
       NEM24p-0 SEFOS(config-if-range)# shutdown
       NEM24p-0 SEFOS(config-if-range)# end

2. Create and enable port-channel between switches according to the topology.

       NEM24p-0 SEFOS# configure terminal
       NEM24p-0 SEFOS(config)# interface port-channel 12
       NEM24p-0 SEFOS(config-if)# no shutdown
       NEM24p-0 SEFOS(config-if)# exit
       NEM24p-0 SEFOS(config)# end

3. Configure VLANs manually.

   You must add at least one port to the VLAN before you can assign the VLAN a name.

       NEM24p-0 SEFOS# configure terminal
       NEM24p-0 SEFOS(config)# vlan 300
       NEM24p-0 SEFOS(config-vlan)# ports add port-channel 12 name vlan-1
       NEM24p-0 SEFOS(config-vlan)# vlan active
       NEM24p-0 SEFOS(config-vlan)# exit
       NEM24p-0 SEFOS(config)# vlan 301
       NEM24p-0 SEFOS(config-vlan)# ports add port-channel 12 name vlan-2
       NEM24p-0 SEFOS(config-vlan)# vlan active
       NEM24p-0 SEFOS(config-vlan)# exit
       NEM24p-0 SEFOS(config)# end

4. Create an uplink trailing group.

   The group number can be 1 to 65355.

       NEM24p-0 SEFOS# configure terminal
       NEM24p-0 SEFOS(config)# uplink-trailing 10
       %  Uplink Trailing Group 10 Created
       NEM24p-0 SEFOS(config-ultr)# description "Uplink-trailing between NEM24p-0 & ToR72p -1"
       NEM24p-0 SEFOS(config-ultr)# end

5. Configure the port-channel to allow all VLANs.

       NEM24p-0 SEFOS# configure terminal
       NEM24p-0 SEFOS(config)# interface port-channel 12
       NEM24p-0 SEFOS(config-if)# switchport mode trunk
       NEM24p-0 SEFOS(config-if)# exit
       NEM24p-0 SEFOS(config)# end

6. Enable the ports and add them to the appropriate port-channels.

   Assign the ports to the uplink-trailing group as uplink or downlink to bind them together

       NEM24p-0 SEFOS# configure terminal
       NEM24p-0 SEFOS(config)# interface range extreme-ethernet 0/1
       NEM24p-0 SEFOS(config-if-range)# description "connected to ToR72p-1"
       NEM24p-0 SEFOS(config-if-range)# channel-group 12 mode active
       NEM24p-0 SEFOS(config-if-range)# uplink-trailing group 10 uplink
       NEM24p-0 SEFOS(config-if-range)# no shutdown
       NEM24p-0 SEFOS(config-if-range)# exit
       NEM24p-0 SEFOS(config)# interface extreme-ethernet 0/18
       NEM24p-0 SEFOS(config-if)# description "connected to Linux blade, Host-2"
       NEM24p-0 SEFOS(config-if)# switchport mode trunk
       NEM24p-0 SEFOS(config-if)# uplink-trailing group 10 downlink
       NEM24p-0 SEFOS(config-if)# no shutdown
       NEM24p-0 SEFOS(config-if)# exit
       NEM24p-0 SEFOS(config)# end

7. Save the configuration.

       NEM24p-0 SEFOS# copy run start
       Building configuration ...
       [OK]

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