Cisco Cisco IOS Software Release 12.2(33)SRE
MPLS VPN—VRF CLI for IPv4 and IPv6 VPNs
Glossary
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Cisco IOS Release 12.2(33)SRB
RIB—Routing Information Base. The set of all available routes from which to choose the Forwarding
Information Base (FIB). The RIB essentially contains all routes available for selection. It is the sum of
all routes learned by dynamic routing protocols, all directly attached networks (that is. networks to
which a given router has interfaces connected), and any additional configured routes, such as static
routes.
Information Base (FIB). The RIB essentially contains all routes available for selection. It is the sum of
all routes learned by dynamic routing protocols, all directly attached networks (that is. networks to
which a given router has interfaces connected), and any additional configured routes, such as static
routes.
RT—route target. Extended community attribute used to identify the Virtual Private Network (VPN)
routing and forwarding (VRF) routing table into which a prefix is to be imported.
routing and forwarding (VRF) routing table into which a prefix is to be imported.
VPN—Virtual Private Network. Enables IP traffic to travel securely over a public TCP/IP network by
encrypting all traffic from one network to another. A VPN uses “tunneling” to encrypt all information at
the IP level.
encrypting all traffic from one network to another. A VPN uses “tunneling” to encrypt all information at
the IP level.
VRF—Virtual Private Network (VPN) routing and forwarding instance. A VRF consists of an IP routing
table, a derived forwarding table, a set of interfaces that use the forwarding table, and a set of rules and
routing protocols that determine what goes into the forwarding table. In general, a VRF includes the
routing information that defines a customer VPN site that is attached to a PE router.
table, a derived forwarding table, a set of interfaces that use the forwarding table, and a set of rules and
routing protocols that determine what goes into the forwarding table. In general, a VRF includes the
routing information that defines a customer VPN site that is attached to a PE router.
VRF table—A routing and a forwarding table associated to a Virtual Private Network (VPN) routing
and forwarding (VRF) instance. This is a customer-specific table, enabling the provider edge (PE) router
to maintain independent routing states for each customer.
and forwarding (VRF) instance. This is a customer-specific table, enabling the provider edge (PE) router
to maintain independent routing states for each customer.
Note
See
for terms not included in this glossary.
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and
coincidental.
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and
coincidental.
©2007 Cisco Systems, Inc. All rights reserved.
CCVP, the Cisco logo, and Welcome to the Human Network are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is
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and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.
a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco
Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity,
Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS,
iPhone, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, iQuick Study, LightStream, Linksys, MeetingPlace, MGX, Networkers,
Networking Academy, Network Registrar, PIX, ProConnect, ScriptShare, SMARTnet, StackWise, The Fastest Way to Increase Your Internet Quotient,
and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.
All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a
partnership relationship between Cisco and any other company. (0711R)
partnership relationship between Cisco and any other company. (0711R)
CCVP, the Cisco logo, and Welcome to the Human Network are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is
a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco
Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity,
Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS,
iPhone, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, iQuick Study, LightStream, Linksys, MeetingPlace, MGX, Networkers,
Networking Academy, Network Registrar, PIX, ProConnect, ScriptShare, SMARTnet, StackWise, The Fastest Way to Increase Your Internet Quotient,
and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.
a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco
Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity,
Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS,
iPhone, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, iQuick Study, LightStream, Linksys, MeetingPlace, MGX, Networkers,
Networking Academy, Network Registrar, PIX, ProConnect, ScriptShare, SMARTnet, StackWise, The Fastest Way to Increase Your Internet Quotient,
and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.
All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a
partnership relationship between Cisco and any other company. (0711R)
partnership relationship between Cisco and any other company. (0711R)