Cisco Cisco IOS Software Release 15.0(1)SY Données agrégées
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Software Innovations
Software innovations span multiple technology areas, including high availability with bidirectional forwarding
detection (BFD) and graceful restart, Flexible NetFlow, network virtualization, optimized media delivery, and IPv6.
Network Virtualization and Routing
Cisco Easy Virtual Networks
Cisco Easy Virtual Network (EVN) enables traffic separation based on role or group policies - between different
departments, to enable vendors to share selected resources, or to restrict access during mergers and
acquisitions. This practice is often called network virtualization. Several well-adopted solutions are available, but
they can be difficult to deploy and manage. EVN simplifies the process by creating separate logical networks on a
single physical infrastructure, each with different security and routing polices, traffic separation, and path isolation.
EVN takes advantage of existing protocols, along with virtual routing and forwarding (VRF) technology, in a
complete network virtualization solution with shared services and enhanced management. Features of this
technology include:
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EVN (VNET) trunk
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OSPF and EIGRP routing protocol support
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Routing Context support
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Shared Services support
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Multicast support
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EVN MIB and Multicast MIB VRF
EIGRP IPv6 VRF-Lite
The Enhanced Interior Gateway Routing Protocol (EIGRP) IPv6 VRF-Lite feature provides EIGRP IPv6 support for
multiple VRFs. EIGRP for IPv6 can operate in the context of a VRF. The EIGRP IPv6 VRF-Lite feature provides
separation between routing and forwarding, resulting in an additional level of security because no communication
between devices belonging to different VRFs is allowed unless it is explicitly configured. The EIGRP IPv6 VRF-Lite
feature simplifies the management and troubleshooting of traffic belonging to a specific VRF. This feature allows
routing inside a VPN using EIGRPv6. EIGRP 6PE/6VPE is not included with this current enhancement.
For more information on EIGRPv6, visit:
http://www.cisco.com/en/US/docs/ios/iproute_eigrp/configuration/guide/ire_cfg_eigrp.html
.
OSPF for IPv6 (OSPFv3) Authentication Support with IPsec
The Open Shortest Path First (OSPF) feature allows routers to secure their neighbor adjacencies with IPv6.
In order to ensure that OSPFv3 packets are not altered and resent to the router, causing the router to behave in a
way not desired by its managers, OSPFv3 packets must be authenticated.
OSPFv3 requires the use of IP Security (IPsec) to enable authentication. Crypto images are required to use
authentication, because only crypto images include the IPsec needed for use with OSPFv3.
For more information on OSPFv3 security, visit:
http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-ospf.html
.