Implementing VSB Stacking

1. Select the chassis that will be the physical chassis members of the VSB stacking system.
2. Assure that all chassis intended for the VSB stacking system are configured for the same firmware image. Different firmware images in the stack will result in multiple reboots for the affected chassis and may result in a host master election of a chassis with a non-desired firmware version.
3. Configure each chassis‘ VSB chassis ID and the ID of the VSB system the chassis belong to.
   • If LFR is being used, optionally, change the LFR priority for one or more chassis in the stack (the LFR priority setting must be unique for each chassis)
4. Identify the 40GbE ports that will be used to interconnect the chassis. One VSB connection is required between each chassis; multiple VSB interconnections can be used between 7100K-Series chassis due to the availability of four 40GbE ports. VSB interconnect ports should be selected taking into consideration the optimization of bandwidth usage and redundancy. Interconnect the first and last chassis in the system to form a closed ring interconnect configuration.
5. Enable bonding on the selected 40GbE interconnect ports (fg.1.x where x is the port number).
6. If you are using LFR, enable bonding on the 1 or 10GbE monitor ports.
7. Optionally change the VSB MAC address from the default value. The VSB MAC address defaults to an internal MAC address associated with chassis 1. It is recommended that all chassis in the VSB stacking system have the same MAC address.
8. If 1 or 10GbE monitor ports were enabled, enable LFR on the system.
9. After completing steps 1 — 8, globally enable the VSB system. The system is reset. If High Availability firmware upgrade is configured prior to enabling VSB, the HAU configuration is lost.
10. Optionally configure the VSB system for High Availability firmware upgrades.
11. When you have completed port level configuration on each chassis, make sure you archive a copy of the configuration should you need to replace a failed unit.