Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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perform load balancing. Routed uplinks optimize the utility of uplinks out of the LAN Access by eliminating
unnecessary broadcast data flows into the network backbone.
Other high-performance routing features include:
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Cisco Express Forwarding hardware routing architecture delivers extremely high-performance IP routing.
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Basic IP unicast routing protocols (static, RIPv1, RIPv2, EIGRP-Stub) are supported for small-network routing
applications.
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Advanced IP unicast routing protocols (OSPF, Interior Gateway Routing Protocol [IGRP], EIGRP, and Border
Gateway Protocol Version 4 [BGPv4]) are supported for load balancing and constructing scalable LANs. The
IP Services license is required.
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IPv6 unicast routing capability (static, RIP, OSPF, and EIGRP protocols) forwards IPv6 traffic through
configured interfaces (requires the IP Services license).
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Policy-Based Routing (PBR) allows superior control by enabling flow redirection regardless of the routing
protocol configured. The IP Services license is required.
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Inter-VLAN IP routing provides for full Layer 3 routing between two or more VLANs.
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Protocol Independent Multicast (PIM) for IP Multicast routing is supported, including PIM sparse mode (PIM-
SM), PIM dense mode (PIM-DM), and PIM sparse-dense mode. The IP Services license is required.
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Distance Vector Multicast Routing Protocol (DVMRP) tunneling interconnects two multicast-enabled networks
across nonmulticast networks. The IP Services license is required.
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Fallback bridging forwards non-IP traffic between two or more VLANs. The IP Services license is required.
Integrated Cisco IOS Software Features for Bandwidth Optimization
The Cisco Catalyst 3560 v2 series offers several advanced features for bandwidth optimization. These features
include:
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Per-port broadcast, multicast, and unicast storm control prevents faulty end stations from degrading overall
systems performance.
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IEEE 802.1d Spanning Tree Protocol support for redundant backbone connections and loop-free networks
simplifies network configuration and improves fault tolerance.
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PVST+ allows for Layer 2 load sharing on redundant links to efficiently use the extra capacity inherent in a
redundant design.
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IEEE 802.1s Multiple Spanning Tree Protocol (MSTP) allows a spanning-tree instance per VLAN, enabling
Layer 2 load sharing on redundant links.
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ECR provides load balancing and redundancy.
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VPN routing/forwarding (VRF)-Lite enables a service provider to support two or more VPNs, with overlapping
IP addresses.
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VRF Aware IP Services enable the use of functions such as TFTP, FTP, SYSLOG, SNMP, traceroute, ping,
HSRP, ARP, and IP SLAs within a VRF.
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Local Proxy Address Resolution Protocol (ARP) works in conjunction with Private VLAN Edge to minimize
broadcasts and maximize available bandwidth.
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VLAN1 minimization allows VLAN1 to be disabled on any individual VLAN trunk link.
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VLAN Trunking Protocol (VTP) pruning limits bandwidth consumption on VTP trunks by flooding broadcast
traffic only on trunk links required to reach the destination devices.
