Cisco C2951-VSEC/K9 FREE 5-Year Warranty Expansion / Connectivity Expansion Slot(s): 4 (total) / 4 (free) x EHWIC 3 (total) / 2 (free) x PVDM 2 (total) / 1 (free) x CompactFlash Card 1 (total) / 1 (free) x ISM 2 (total) / 1 (free) x memory Interfaces: 3 x 10Base-T/100Base-TX/1000Base-T - RJ-45 Management : 1 x console - RJ-45 Management : 1 x console - mini-USB Type B Serial : 1 x auxiliary - RJ-45 USB : 2 x 4 pin USB Type A 1 x SFP (mini-GBIC) General Routing Protocol: OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, static IP routing, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing, policy-based routing (PBR), MPLS Encryption Algorithm: SSL Features: Firewall protection, VPN support, MPLS support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Access Control List (ACL) support, Quality of Service (QoS), Dynamic Multipoint VPN (DMVPN), Web Services Management Agent (WSMA), NetFlow Connectivity Technology: Wired Data Link Protocol: Ethernet, Fast Ethernet, Gigabit Ethernet