Other


Do SFP transceivers have a MAC address or does the address belongs to the SFP port?

SFP (Small Form-factor Pluggable) transceivers do not have a MAC address. The MAC address is assigned to the network interface controller (NIC) or network adapter, which is the hardware component responsible for connecting a device to a network.

The SFP transceiver is a hot-swappable input/output device that plugs into a port on a network switch, router, or other networking devices and allows the device to transmit and receive data over fiber optic or copper cables. The SFP port to which the SFP transceiver is connected is typically assigned a unique MAC address by the device manufacturer.

Therefore, the MAC address belongs to the device’s network interface using the SFP port, not the SFP transceiver itself.


DJI care – No activation code

We purchased a DJI Mini 3 Pro and powered it on.

After that, we purchased a DJI Care Refresh (2-Year Plan).

In the DJI controller, there was a warning that we needed to activate the service plan within 48 hours. Clicking on that option would require an activation code.

DJI did not send us an activation code with the purchase of the service plan.

We used https://service.dji.com/djicare/coverage to verify that our purchase was valid, but no information on the activation code was available.

From the controller, we want to the profile settings and unbound the drone. After we bound it again, the Replacement Service was marked as valid.


Using Revolut Metal in Cyprus

In this entry, we will briefly describe our experience with “Revolut Metal” as a customer that resides in Cyprus. We will update this post as time passes and new data are collected.

Day 0

Pros

It was straightforward to change our plan and upgrade.

With a click, we could also convert the plan to an annual instead of a monthly one, which gave us a reasonably good discount!

In the tab “Accounts,” under the category “Net worth,” the “Savings” option, we can see some money being accumulated that is marked as “Metal cashback.”

The new metal card was immediately available to use online.

Cons

Under the “Accounts” tab, we clicked on the “Discover discounts” option, which popped up a video. At the bottom of the video, there was a button labeled “View my Rewards” we clicked on it, but nothing showed up. We could not find a page with rewards available for people residing in Cyprus.

Day 11

The metal card arrived at our door in a black envelope!

Day 12

The maximum cap for Revolut Metal Cashback is 13.99 euros per month.

Day 20

Revolut credit cards cannot be used with the Bank of Cyprus wallet application, nor can they be used with Google Pay for people that reside in Cyprus, as Google Pay is not available to Cypriot citizens.

Day 53

The maximum number of disposable virtual cards daily is six (6)!

Day 90

We used the travel insurance of the Metal plan, the reimbursement was not as much as we would hope, but at least it covered a large portion of our expenses.

Day 103

Our metal card information was copied, and someone tried to use it illegally. Revolut spotted it early on and froze the transactions. Then we were notified, and once we declined the transactions, they issued a new metal card with customization for free.

Day 140

Even though we got a notification that we could add a Revolut card to Google Pay, it still did not work:

Your bank doesn’t support tap to pay with your watch on your card. Contact your bank fro more info or add another card.

The error we got when trying to add the card to Google Pay

We tried to add a card while no watch was connected to the phone and still got the same error.

Day 173

Apparently, if you have multiple requests on a “Single-use virtual card” and authorize all of them before the first one is billed, you can perform multiple transactions on a single “Single-use virtual card”! We accidentally did this with two transactions on one “Single-use virtual card.”