IJsbrand Wijnands works for Cisco Systems and is a technical leader in the IP multicast development group. He has been working in computer networking for the last 10 years. At Cisco IJsbrand ('Ice') is involved in multicast protocols PIM, IGMP and MSDP for the last 6 years. He particularly focuses on PIM scalability, multicast IP VPN's and multicast in MPLS networks. As author IJsbrand submitted 2 drafts at IETF, draft-ietf-pim-rpf-vector-00, draft-wijnands-mpls-ldp-mcast-ext-00 and is a co-author of draft-rosen-vpn-mcast-08.