Although the Ethernet ports on a bypass card are inaccessible when the bypass relay is closed, the motherboard ports remain active. You can sometimes access a failed appliance through the motherboard ports if the bridged ports are inaccessible.
The primary port
If the Primary port is enabled and has an IP address assigned to it, the appliance uses that IP address to identify itself to other acceleration units. This address is used internally for various purposes, and is most visible to users as the Partner Unit field on the Monitoring: Optimization: Connections page. If no motherboard port is enabled, the appliance uses the IP address of Accelerated Pair A.
The Primary port is used for:
- Administration through the web based UI
- A back channel for group mode
- A back channel for high-availability mode