What is a switch card?

As shown in the diagram, the hub router has a switch card to connect one of its subnets. The EIGRP topology shows as the below,

corp@sh ip eigrp topology

P 10.1.1.0/24, 1 successors, FD is 25625600 via connected, Vlan1

The question is what vlan1 stands for? Is it the internal network interface for the default VLAN? Also, since the router does not have an interface, how the subnet's nodes get the default gateway?

IMG_1103.jpg

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networker050184

I assume by switch card it means a switch module for a router. Something like this - Cisco EtherSwitch Modules for the Integrated Services Routers - Cisco

In that output the Vlan1 part is the L3 interface that network is connected to. In this case there would be an SVI for VLAN 1.

johnifanx98

networker050184 wrote: »

I assume by switch card it means a switch module for a router. Something like this - Cisco EtherSwitch Modules for the Integrated Services Routers - Cisco

In that output the Vlan1 part is the L3 interface that network is connected to. In this case there would be an SVI for VLAN 1.

Then how come it's even more expensive than a serial port? Look at the subnet of 10.1.4.0

IMG_1107.jpg

networker050184

What do you mean by more expensive? The feasible distance? Are you familiar with how that is calculated?

OctalDump

The router treats the switch as if it is a separate switch connected to an ethernet port.