Reference Guide

Layer 3
Bidirectional
forwarding
detection (BFD)
Provides rapid failure detection in links with adjacent routers (see BFD commands).
Border Gateway
Protocol (BGP)
Provides an external gateway protocol that transmits inter-domain routing information within and
between autonomous systems (see BGP Commands).
Equal Cost Multi-
Path (ECMP)
Provides next-hop packet forwarding to a single destination over multiple best paths (see ECMP
Commands).
IPv4 Routing Provides forwarding of packets to a destination IP address, based on a routing table. This routing table
defines how packets are routed — dynamically, broadcasted directly to, using proxy ARP, as well as what
type of information is included with the packets (see IPv4 Routing Commands).
IPv6 Routing Provides routing for the IPv6 address space, stateless auto-configuration, header format simplifications,
and improved support for options and extensions (see IPv6 Routing Commands).
Open Shortest
Path First
(OSPF)
Provides a link-state routing protocol that communicates with all other devices in the same autonomous
system area using link-state advertisements (LSAs). OS10 supports up to 10,000 OSPF routes for
OSPFv2 to designate up to 8,000 routes as external, and up to 2,000 as inter/intra area routes (see
OSPF Commands).
Virtual Router
Redundancy
Protocol (VRRP)
Provides a mechanism to eliminate a single point of failure in a statically routed network (see VRRP
Commands).
Virtual Routing
and Forwarding
(VRF)
Provides a mechanism to partition a physical router into multiple virtual routers (see VRF Commands).
Virtual routing and forwarding
Virtual routing and forwarding (VRF) allows to partition a physical router into multiple virtual routers. The control and data plane
are isolated in each virtual router (VR) so that traffic does not flow across VRs. VRF allows multiple instances of routing tables
to co-exist within the same router at the same time.
OS 10 supports a management VRF instance, a default VRF instance, and up to 16 non-default VRF instances. Use the default
and non-default VRF instances to configure routing.
You can move the management interface from the default to management VRF instance.
By default, OS10 initially assigns all physical interfaces and all logical interfaces to the default VRF instance.
Configure management VRF
You can assign only management interfaces to the management VRF instance.
Before you assign the management interface to the management VRF instance, remove all the configured settings, including the
IP address, on the management interface.
1. Enter the ip vrf management command in the CONFIGURATION mode. Use non-transaction-based configuration mode
only. Do not use transaction-based mode.
2. Add the management interface by using the interface management command in the VRF CONFIGURATION mode.
Configure management VRF
OS10(config)# ip vrf management
OS10(conf-vrf)# interface management
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254 Layer 3