C_TS422_2020 - SAP Certified Application Associate - SAP S/4HANA Production Planning and - PDF document

Preparation SAP Certified Application Associate - SAP S/4HANA Production Planning and Manufacturing Effective Dumps Get your required dump now: https://certsgot.com/product/dumps - c_ts422_2020 - sap - certified - application - associate - sap - s - 4hana - production - planning - and - manufacturing/ And what the IE did was notice what Cisco noticed, which is that not every VLAN would benefit from having the same switch as the root bridge. Perhaps, but they came up with a different approach. Instead of giving every single i ts own instance of a spanning tree, this “triple standard” observes that while we may have several that would benefit from the same switch being the route, for example, let’s say that in this basic topology, switch A would be the optimal route bridge for V LANs one, two, three, and four. However, switch B would be the best route bridge for VLANs 5, 6, 7, and 8. So what we can do is, instead of having eight different instances of the spanning tree running as we would with PVST and PBST, we can have just two i nstances. We can define an instance where switch A is the root, and we can assign VLANs to that instance that would benefit from having switch A as the root. We set up a second instance with switch B as the route, and then we assigned those VLANs that woul d benefit from switch B being the root. However, so far, all of these different options we’ve talked about still have the same default convergence time. If a link fails in this redundant physical loop, it takes about 50 seconds to start using an alternate path, and that can be a long time. Fortunately, there is another standards - based approach that can speed things up, and that’s called RST, or rapid spanning tree protocol. And when I say it’s going to speed things up quicker than 50 seconds, I’m talking o n the order of a few milliseconds to typically a maximum of about 6 seconds, which, by the way, is three times the default hello time of 2 seconds. That’s where we get the six and a few milliseconds. That can happen if a direct link fails because, with the rapid spanning tree protocol, all of the switches on the topology can participate in the conversions, educate one another, and detect when something goes wrong and send out a message called a TCN, or a typology change notification.