Two 3750 L3 switches connected via trunk

[wilson.jr]

Hi All,

I have client who has two distant offices with 3750 L3 as core (do all vlan routing for local office) and multiple L2 access switches with multiple VLAN’s connected to it. First 3750 is hub also connected to internet, second 3750 is spoke and acting as a router on stick. We have eigrp configured on both side

ISP provided client 100Mbps link as a trunk with two vlan; vlan10 for voice and vlan20 for data. We assigned two small subnets to these vlans 10.15.17.0/29 and 10.15.17.9/29. Hub addresses are 10.15.17.1 and 10.15.17.9 respectively. How to force voice over VLAN10 and data via vlan20, but still do some load balancing? How to setup default route on second (router on stick) switch?

Thank you very much

[Reza Sharifi]

Hi,

It depends how the network is setup.  With EIGRP, load balancing is possible over multiple links. have a look at this doc for more info:

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094820.shtml

HTH