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Cisco Catalyst Switch Module 3110 and 3012 for IBM BladeCenter Software Configuration Guide
OL-12189-01
Chapter 1 Overview
Features
Layer 3 Features
These are the Layer 3 features:
Note Some features noted in this section are available only in the IP services feature set.
• HSRP for Layer 3 router redundancy
• IP routing protocols for load balancing and for constructing scalable, routed backbones:
–
RIP Versions 1 and 2
–
OSPF (only the Catalyst Switch Module 3110 running the IP services feature set)
–
Enhanced IGRP (EIGRP) (only the Catalyst Switch Module 3110 running the IP services
feature set)
–
Border Gateway Protocol (BGP) Version 4 (only the Catalyst Switch Module 3110 running the
IP services feature set)
• IP routing between VLANs (inter-VLAN routing) for full Layer 3 routing between two or more
VLANs, allowing each VLAN to maintain its own autonomous data-link domain
• Policy-based routing (PBR) for configuring defined policies for traffic flows (only the Catalyst
Switch Module 3110)
• Multiple VPN routing/forwarding (multi-VRF) instances in customer edge devices to allow service
providers to support multiple virtual private networks (VPNs) and overlap IP addresses between
VPNs (only the Catalyst Switch Module 3110 running the IP services feature set)
• VRF Lite for configuring multiple private routing domains for network virtualization and virtual
private multicast networks (only the Catalyst Switch Module 3110)
• Support for these IP services, making them VRF aware so that they can operate on multiple routing
instances: HSRP, uRPF, ARP, SNMP, IP SLA, TFTP, FTP, syslog, traceroute, and ping
• Fallback bridging for forwarding non-IP traffic between two or more VLANs (only the Catalyst
Switch Module 3110 running the IP services feature set)
• Static IP routing for manually building a routing table of network path information
• Equal-cost routing for load-balancing and redundancy
• Internet Control Message Protocol (ICMP) and ICMP Router Discovery Protocol (IRDP) for using
router advertisement and router solicitation messages to discover the addresses of routers on directly
attached subnets
• Protocol-Independent Multicast (PIM) for multicast routing within the network, allowing for
devices in the network to receive the multicast feed requested and for switches not participating in
the multicast to be pruned. Includes support for PIM sparse mode (PIM-SM), PIM dense mode
(PIM-DM), and PIM sparse-dense mode (only the Catalyst Switch Module 3110 running the IP
services feature set)
• Multicast Source Discovery Protocol (MSDP) for connecting multiple PIM-SM domains (only the
Catalyst Switch Module 3110 running the IP services feature set)
• Distance Vector Multicast Routing Protocol (DVMRP) tunneling for interconnecting two
multicast-enabled networks across nonmulticast networks (only the Catalyst Switch Module 3110
running the IP services feature set)
• DHCP relay for forwarding UDP broadcasts, including IP address requests, from DHCP clients
• IPv6 unicast host management