EIGRP basic

[The_guroo_2]

Guys the scenario is that we have two sites....one has got olf 5500 switch and the new site has 3750 swicth....we have 100M fibre (dedicated) link....as we have 5505 its running hybrid mode i will create a vlan and then will assign th eport to that vlan....on other side i have 3750 which is capable of layer 3......if i am not wrong i have two options i can do no swicth port and assign directly to the interface (which is conectiong to the otehr end) second option is that i can create a vlan (just like 5500) and assign the port to it.....we will be running EIGRP between them.

My question is that what is the difference between the two ie assigning IP to the port (3750) and running eigrp and creating a vlan on 3750 and then assign a port (fibre) and run Eigrp...is there any difference if yes and what would be the prefer way to do it

Thanks heaps

[Latchum Naidu]

Hi,

Why can't you configure EIGRP in global on the both end switches and advertise respective subnets uner the eigrp

Please rate the helpfull posts.
Regards,
Naidu.

[bmuggall]

Hi,

  There is no difference as per theory. You can do either way.

Reg,

Balu

[Richard Burts]

I agree with Balu that you can do it either way. There are some differences but I do not believe that they would be significant in your situation.

- with the no switchport approach your switch will not generate BPDUs on the interface while with the VLAN approach the access port in the VLAn will generate BPDUs.

- with the no switchport approach the connection is inherently point to point with a single neighbor while with the VLAN approach there could possibly be more than one access port in the VLAN and therefore more than one EIGRP neighbor in the subnet.

HTH

Rick