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| Sun Ethernet Fabric Operating System ### SLB Administration Guide

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## Set Up Switch A

Shut down SLB-related switch ports on the switch.

1. Shut down switch ports connected to the clients.

       SEFOS# configure terminal
       SEFOS(config)# interface range extreme-ethernet 0/1-4
       SEFOS(config-if-range)# shutdown
       SEFOS(config-if-range)# exit

2. Shut down uplink ports to switch B.

       SEFOS(config)# interface range extreme-ethernet 0/9-10
       SEFOS(config-if-range)# shutdown
       SEFOS(config-if-range)# exit

3. Disable GVRP and GMRP.

       SEFOS(config)# set gvrp disable
       SEFOS(config)# set gmrp disable

4. Set up spanning tree so that it works with two separate VLANs.

       SEFOS(config)# spanning-tree mst configuration
       SEFOS(config-mst)# name example3
       SEFOS(config-mst)# revision 1
       SEFOS(config-mst)# instance 1 vlan 3
       SEFOS(config-mst)# instance 2 vlan 4
       SEFOS(config-mst)# exit

5. Set up the client VLAN.

   Set up VLAN switch port access to the client network.

       SEFOS(config)# vlan 2
       SEFOS(config-vlan)# exit
       SEFOS(config)# interface range extreme-ethernet 0/1-4
       SEFOS(config-if-range)# switchport access vlan 2
       SEFOS(config-if-range)# exit

   Set up the interface address of the client VLAN.

       SEFOS(config)# interface vlan 2
       SEFOS(config-if)# shutdown
       SEFOS(config-if)# ip address 20.0.0.100 255.255.255.0
       SEFOS(config-if)# no shutdown
       SEFOS(config-if)# exit

6. Set up the server VLAN.

   Set up the server VLANs on uplinks.

       SEFOS(config)# vlan 3
       SEFOS(config-vlan)# port extreme-ethernet 0/9
       SEFOS(config-vlan)# exit
       SEFOS(config)# vlan 4
       SEFOS(config-vlan)# port extreme-ethernet 0/10
       SEFOS(config-vlan)# exit

   Set up the VLAN gateway interface addresses of server subnets.

       SEFOS(config)# interface vlan 3
       SEFOS(config-if)# shutdown
       SEFOS(config-if)# ip address 192.0.0.100 255.255.255.0
       SEFOS(config-if)# no shutdown
       SEFOS(config-if)# exit
       SEFOS(config)# interface vlan 4
       SEFOS(config-if)# shutdown
       SEFOS(config-if)# ip address 192.1.0.100 255.255.255.0
       SEFOS(config-if)# no shutdown
       SEFOS(config-if)# exit

7. Set up SLB entries.

   Set up the first SLB group.

       SEFOS(config)# slb 10.10.10.0 255.255.255.0 192.0.0.1,192.0.0.2,192.0.0.3
       SEFOS(config)# slb standby 10.10.10.0 255.255.255.0 192.0.0.4

   Set up the second SLB group.

       SEFOS(config)# slb 11.11.11.0 255.255.255.0 192.1.0.1,192.1.0.2,192.1.0.3

8. Set the traffic distribution hash policy (if needed).

       SEFOS(config)# slb policy src-ip
       SEFOS(config)# end

9. View the updated configuration.

       SEFOS# show slb

       SLB Group ID: 1 Virtual IP: 10.10.10.0/24
       Server Members:
       IP Address       Vlan  MacAddress        Port State     Comments
       ================ ====  ================= ==== ========= ==================
       192.0.0.1        ----  --:--:--:--:--:-- ---- IDLE
       192.0.0.2        ----  --:--:--:--:--:-- ---- IDLE
       192.0.0.3        ----  --:--:--:--:--:-- ---- IDLE
       192.0.0.4        ----  --:--:--:--:--:-- ---- STANDBY   (down)

       SLB Group ID: 2 Virtual IP: 11.11.11.0/24
       Server Members:
       IP Address       Vlan  MacAddress        Port State     Comments
       ================ ====  ================= ==== ========= ==================
       192.1.0.1        ----  --:--:--:--:--:-- ---- IDLE
       192.1.0.2        ----  --:--:--:--:--:-- ---- IDLE
       192.1.0.3        ----  --:--:--:--:--:-- ---- IDLE

   The preceding output shows that all active servers are in idle state (not reachable from the switch) and that the standby server is also unreachable from the switch (marked as `down` in the Comments column).

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