A technician is reviewing a report of slowness during peak traffic periods and is looking at performance on a particular switch. What should the technician be aware of about memory buffering on a switch?
- The port-based memory method is more appropriate to asymmetric switching.
- If shared memory is used, a single frame can delay the transmission of all others in memory because of a busy destination port.
- The amount of buffer memory required by a port is dynamically allocated when port-based memory is used.
- Shared memory allows traffic received on one port to be transmitted to another port without moving the data to a different queue.
Explanation: When shared memory buffering method is used, the frames in the buffer are dynamically linked to the destination port, enabling a packet to be received on one port and then transmitted on another port without moving it to a different queue. This buffering method deposits all frames into a common memory buffer shared by all switch ports, and the amount of buffer memory required by a port is dynamically allocated. In port-based memory, it is possible for a single frame to delay the transmission of all the frames in memory because of a busy destination port.
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