Pls visit the below site for ur all questions related to IOS and the model no of Router and the hardware requirement of all the routers.http://tools.cisco.com/ITDIT/CFN/jsp/index.jspThanks.Nilesh.
Hi Oleg,Let me ask u one question ???C3550 is the CE, U have to create a vrf on the PE router and run the MBGP session between the PE to PE. Add the interface of PE into the vrf. Pls let me know if it work or not.