GS1900E-24 LAG Aggregation and bandwidth

VCS

I work with big routers like the Nokia SR 7750, when you do LAG on these routers it will aggregate the bandwidth. So, if you have two 1 Gbps ports the bandwidth of the LAG will be 2 Gbps.

With Nokia is most of the times links of 100Gbps, so the bandiwdth is as many ports are up with the same bandwidth. So, if you have 10 port of 100 Gbps, then the bandwidth will be 1000 Gbps.

I'm using the LAG between my QNAP and GS 1900, the QNAP reports a bandwidth of 2 Gbps while the GS1900E-24 reports 1 Gbps. The Lag is up and working.

Is this just a cosmetic issue?

Zyxel_Kay

Hi @VCS

Link Aggregation (LAG) on switches like the GS1900-24E combines multiple physical ports into a single logical link to balance network traffic and provide redundancy. However, it's important to note that while LAG allows for increased overall bandwidth, it does not increase the speed of any individual port. Each port in the LAG will still operate at its maximum speed of 1 Gbps.

So, when you see 1 Gbps per port on the GS1900-24E, it's expected behavior. The total aggregated bandwidth is 2 Gbps, but since the switch shows the speed of each port individually, the display reflects 1 Gbps per port. This is not a cosmetic issue; it's how the device reports port speeds.

Zyxel_Kay

Hi @VCS

Link Aggregation (LAG) on switches like the GS1900-24E combines multiple physical ports into a single logical link to balance network traffic and provide redundancy. However, it's important to note that while LAG allows for increased overall bandwidth, it does not increase the speed of any individual port. Each port in the LAG will still operate at its maximum speed of 1 Gbps.

So, when you see 1 Gbps per port on the GS1900-24E, it's expected behavior. The total aggregated bandwidth is 2 Gbps, but since the switch shows the speed of each port individually, the display reflects 1 Gbps per port. This is not a cosmetic issue; it's how the device reports port speeds.