Oracle Switch ES1-24 link aggregation and port Aggregation

Oracle Switch ES1-24 link aggregation and port Aggregation
The following describes some advanced network configurations, including link aggregation for dual switches that provide doubled bandwidth and high availability.

Logical Link Aggregation)
Link aggregation, also known as Trunking or Bonding, is essentially a logical data path that combines several physical links between two devices, it is called an aggregation link, as shown in Figure1. The physical links Link1, Link2, and Link3 between vswitches form an aggregation link. The link is logically integrated. The internal composition and data transmission details are transparent to upper-layer services.

Dual-ES1-24 configuration: Server-oriented LACP (Link Aggregation Control Protocol, Link Aggregation Control Protocol) is a Protocol to achieve dynamic Link Aggregation, devices running this Protocol exchange information about Link Aggregation Control (LACPDU) through Link Aggregation Control Protocol Data Unit.

The cross-switch link aggregation provides a multi-layer HA for the switch failure, if multiple ES1-24 switches are configured with the inter-switch link (ISL) port channel, the server port must be configured in active-active mode. On the Solaris server, "aggr" is used for port aggregation, and "bonding" is used for Linux. The following is an L2 configuration example. The server uses vlan 2 and 3, perform the following configurations on each vswitch:

1. # First disable GVRP, GMRP and then configure the VLANs 2 and 3.
   
2. SEFOS # configure terminal
   
3. SEFOS (config) # set gvrp disable
   
4. SEFOS (config) # set gmrp disable
   
5. SEFOS (config) # set port-channel enable
   
6. SEFOS (config) # interface vlan 1
   
7. SEFOS (config-if) # shutdown
   
8. SEFOS (config-if) # no ip address
   
9. SEFOS (config-if) # end
   
10. 
    
11. # Step 1: Create VLANs 2 and 3 on the Oracle Switch ES1-24 switches.
    
12. SEFOS (config) # vlan 2
    
13. SEFOS (config-vlan) # ports add extreme-ethernet 0/1
    
14. SEFOS (config-vlan) # vlan active
    
15. SEFOS (config-vlan) # exit
    
16. SEFOS (config) # vlan 3
    
17. SEFOS (config-vlan) # ports add extreme-ethernet 0/1
    
18. SEFOS (config-vlan) # vlan active
    
19. SEFOS (config-vlan) # exit
    
20. SEFOS (config-vlan) # end
    
21. SEFOS # write startup-config
    
22. 
    
23. # Step 2: Configure the port connecting to server as trunk port.
    
24. SEFOS # configure terminal
    
25. SEFOS (config) # interface range extreme-ethernet 0/1
    
26. SEFOS (config-if) # switchport mode trunk
    
27. SEFOS (config-if) # no shutdown
    
28. SEFOS (config-if) # exit

Dual ES1-24 configuration: four 10g sfp + ports are used for the channel upstream to the core switch. A recommended design is that each ES1-24 switch is connected to two core switches, each of which is connected to each ES1-24 through two ports. The two upstream ports are aggregated and configured to the trunk mode.

1. Step 3: Configure port aggregation for uplink ports. Port-channel 10 aggregates ports 21-22 to core
   
2. Switch1. Port-channel 11 aggregates ports 23-24 to core switch2.
   
3. SEFOS # configure terminal
   
4. SEFOS (config) # set port-channel enable
   
5. SEFOS (config) # interface port-channel 10
   
6. SEFOS (config-if) # no shutdown
   
7. SEFOS (config) # exit
   
8. SEFOS (config) # interface port-channel 11
   
9. SEFOS (config-if) # no shutdown
   
10. SEFOS (config) # end
    
11. 
    
12. Step 4: Add ports to uplink port-channels.
    
13. SEFOS # configure terminal
    
14. SEFOS (config) # interface range extreme-ethernet 0/21-22
    
15. SEFOS (config-if) # no shutdown
    
16. SEFOS (config-if) # channel-group 10 mode active
    
17. SEFOS (config-if) # exit
    
18. SEFOS (config) # interface range extreme-ethernet 0/23-24
    
19. SEFOS (config-if) # no shutdown
    
20. SEFOS (config-if) # channel-group 11 mode active
    
21. SEFOS (config-if) # end
    
22. 
    
23. Step 5: Configure uplink port-channels to allow all VLANs.
    
24. SEFOS # configure terminal
    
25. SEFOS (config) # interface port-channel 10
    
26. SEFOS (config-if) # switchport mode trunk
    
27. SEFOS (config-if) # no shutdown
    
28. SEFOS (config) # exit
    
29. SEFOS (config) # interface port-channel 11
    
30. SEFOS (config-if) # switchport mode trunk
    
31. SEFOS (config-if) # no shutdown
    
32. SEFOS (config) # end

To avoid loops, configure the MSTP protocol. However, if the core switch is configured with PVRST, The ES1-24 also needs this configuration. You can use the show spanning-tree Command to view the diffusion tree.

1. Step 6: Configure L2-PVRST on Oracle Switch ES1-24 such that it is not the root bridge for any
   
2. VLANs configured. Doing so makes the core switch become the root, and only intended traffic (not all
   
3. Core traffic) reaches the Oracle Switch ES1-24 switches.
   
4. SEFOS # configure terminal
   
5. SEFOS (config) # spanning-tree mode pvrst
   
6. Spanning Tree enabled protocol is MSTP, now MSTP is being shutdown
   
7. PVRST is started.
   
8. PVRST Module status is changed
   
9. SEFOS (config) # spanning-tree vlan 2 brg-priority 61440
   
10. SEFOS (config) # spanning-tree vlan 3 brg-priority 61440
    
11. SEFOS (config) # end

For more information, see this document.