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ccna 200 301 bookshare promo.7.1.5 Ethernet port namingThe naming of Ethernet ports on IOS devices is determined by the port rate, so the port names are often Ethernet 0 (Ethernet port 0), FastEthemet1/1 (Fast Ethernet port 1/1), and GigabitEthemet2/2 (Gigabit Ethernet port 2/2). While this naming scheme is clear at a glance, this naming system becomes a stumbling block for upgrades and is completely unscalable when you want to upgrade a Fast Ethernet switch to a Gigabit Ethernet switch. And you'll soon find that copying and pasting the configuration from the old device into the new one isn't very feasible. And these transceivers are usually fixed in the device, so the maximum rate of the port is fixed.This is not the case with Nexus devices, as interfaces with different rates can be inserted into the SFP+ ports. And even better, to simplify the configuration of these devices, Cisco introduced a super-simple naming standard - regardless of the port rate, the interface is called "Ethernet (Ethernet port) II so that Ethernet1/2 might be a rate Ethernet1/2 might be a 1 Gbit/s port, and Ethernet 1/3 might be a 10 Gbit/s port. However, one thing is the same as for IOS devices: the number still indicates the slot number, followed by the port number.7.1.6 Expansion ModulesThe Nexus design is full of flexibility ideas, so it has some expansion ports for different types of boards, in order to be able to maximize the port quality. On the first generation of Nexus switches, the only way to connect to a storage network using FibreChannel was to use an expansion module.So using a separate interface to control data traffic for Ethernet and storage traffic for the LightChannel reallystrange to say this, but in all seriousness, you'll really have to look hard to find the Console port, because each model has a different Console port location! Anyway, once you've found the Console port, you can plug in the USB to serial interface converter on your laptop and then use the Console cable to connect your laptop to the Nexus switch. You'll want to make sure to set your terminal program to 8-N-lo If everything is in place, you should see a command prompt.Figure 7.5 Nexus 5020 and Expansion CardsNexus 7000 Series switches use line cards to add features and ports. You don't have to think about it to know that the number of line cards that can be managed varies from model to model; for example, the 7010 has a capacity of 10 and the 7010 is 18, as shown in Figure 7.6.Figure 7.6 Nexus 7000 and line card