Which port is used for the high availability connection between the two Edges on a pair of Edge 510s?

Question

Options

• AAny port may be chosen.
• BGE1
• CSFP1
• DGE4

• A
  5% (1)
• B
  5% (1)
• C
  90% (18)

Explanation

On the Edge 510 platform, SFP1 is the dedicated, fixed port for the high availability (HA) interconnect link between a paired set of devices - it is hardwired into the device's design specifically for this purpose, ensuring a reliable, low-latency heartbeat and state-synchronization channel between the two units.

Why the distractors are wrong:

• A (Any port) - incorrect because the HA port is not user-configurable on the Edge 510; it is fixed by the hardware design.
• B (GE1) - GE1 is a standard copper Gigabit Ethernet port used for WAN or LAN data traffic, not HA synchronization.
• D (GE4) - GE4 is similarly a general-purpose GE data port and has no dedicated HA role.

Memory tip: Think SFP = "Sync For Pairing" - the fiber/SFP port is physically separated from the copper GE ports precisely so the HA link gets its own dedicated, interference-free connection. If you remember that HA needs a dedicated channel and the Edge 510 reserves its SFP port for that role, you'll always land on SFP1.

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