Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, Release 6.x

Index

A

ABR 4-4

address formats

IPv4 2-2

IPv6 3-2

IPv6 (table) 3-2

address resolution protocol. See ARP

administrative distance

description 1-7

static routing 13-2

aggregatable global addresses. See IPv6

unicast addresses

areas 5-5

ARP

caching 2-3

configuring gratuitous ARP 2-13

configuring Local Proxy ARP 2-12

configuring Proxy ARP 2-11

configuring static ARP entries 2-10

description 2-3

gratuitous ARP 2-5

Local Proxy ARP 2-5

process (figure) 2-3

Proxy ARP 2-5

Reverse ARP 2-4

AS. See autonomous system

ASBR 4-5

AS confederations

configuring 8-29

description 8-5

AS numbers

4-byte support. 1-5

ranges (table) 1-5

AS-path lists

configuring 16-8

description 16-4

autonomous system

description 1-5

B

bandwidth 1-4

BDR 4-3

BFD

BGP 8-9, 13-3

configuring for BGP 18-12, 18-14, 18-18

configuring on an interface 18-8, 18-9

configuring session parameters 18-6

description 18-1

echo function 18-2

enable the feature 18-6

licensing 18-3

monitoring 18-23

OSPF 4-11

OSPFv3 5-12

session parameters 18-2

verifying 18-23

virtualization support 18-3

BGP 7-7

administrative distances (table) 7-2

BFD 8-9, 13-3

clearing neighbors 7-22

conditional advertisement 8-7

conditional advertisement example 8-38

configuration modes 7-8

configuring conditional advertisement 8-36

configuring dynamic capability 8-34

configuring maximum prefixes 8-34

configuring prefix peering 8-21

configuring route dampening 8-33

default settings 7-10, 8-12

description 7-1, 7-7, 8-1

disable the feature 7-12

displaying statistics 7-27, 8-49

eBGP 8-3

enable the feature 7-11

example configuration 7-27

generic specific extended community lists 16-5

guidelines 7-8, 8-11

iBGP 8-4

licensing requirements 7-7, 8-10

limitations 7-8, 8-11

MIBs 6-28, 7-28

modifying AS-paths 8-43

modifying next-hop address 8-23

MP-BGP 8-10

next-hop address tracking 8-8

path selection 7-4

prerequisites 7-7, 8-10

router ID 7-3

speakers 7-1

tuning 8-42

unicast RIB 7-7

verifying configuration 7-25, 8-48

virtualization support 7-7

BGP aggregate addresses

configuring 8-35

BGP AS-path lists

configuring 16-8

description 16-4

BGP authentication

configuring 8-22

description 8-2

BGP autonomous systems

description 7-2

BGP capabilities negotiation

description 8-6

disabling 8-25

BGP community lists

configuring 16-9, 16-11

description 16-4

BGP extended community lists

description 16-4

BGP instance

creating 7-12

deleting 7-13

restarting 7-13

BGP load balancing

configuring 8-34

BGP loadsharing

description 8-7

BGP multipath. See BGP loadsharing

BGP peers

authentication (note) 8-2

configuring 7-14, 7-17, 7-20

description 7-3

BGP route aggregation

description 8-7

BGP route dampening 8-6

BGP route redistribution

configuring 8-38

description 8-9

BGP sessions

reset options 8-3

resetting 8-22

route policies 8-3

BGP templates

configuring peer-policy templates 8-16

configuring peer templates 8-18

configuring session templates 8-13

description 8-2

peer-policy templates 8-2

peer-session templates 8-2

peer template 8-2

Border Gateway Protocol. See BGP

C

CDP 3-11

communication cost 1-4

community lists

configuring 16-9, 16-11

description 16-4

comparing

link-state and distance vector routing algorithms 1-9

D

default gateway

description 1-8

default settings

BGP 7-10, 8-12

ECMP for host routes 10-1, 11-2

EIGRP 6-8

HSRP 20-6

IP 2-7

IPv6 3-17

object tracking 22-3

OSPF 4-12

OSPFv3 5-13

policy-based routing 17-4

RIP 12-4

Route Policy Manager 16-6

static routing 13-4

VRF 14-6

VRRP 21-6

delay 1-4

distance vector routing algorithms 1-9

distribution

RIP 12-3

DNS 3-10

DR 4-3

E

eBGP

configuring 8-25

configuring AS confederations 8-29

configuring multihop 8-27

description 8-3

disabling fast external failover 8-28

disabling single-hop checking 8-26, 8-27

limiting the AS-path attribute 8-28

eBGP AS confederations. See AS confederations

ECMP. See equal cost multipath

ECMP for host routes

default settings 10-1, 11-2

example configuration 10-3, 11-4

information about 11-1

licensing requirements 11-2

verifying configuration 11-4

EIGRP

authentication 6-5

configuring a summary address 6-16

configuring authentication 6-13

configuring hello interval 6-22

configuring load balancing 6-21

configuring route redistribution 6-17

configuring stub routing 6-16

creating an instance 6-10

default settings 6-8

deleting an instance 6-11

description 6-1

disabling an instance 6-12

disabling split horizon 6-23

disabling the feature 6-9

displaying statistics 6-27

DUAL algorithm 6-2

ECMP 6-6

enabling the feature 6-9

example configuration 6-28

external route metrics 6-4

guidelines 6-7

hold time 6-2

internal route metrics 6-3

licensing requirements 6-7

limitations 6-7

limit redistributed routes 6-19

load balancing 6-6

neighbor discovery 6-2

prerequisites 6-7

restarting an instance 6-12

route redistribution 6-6

route summarization 6-6

route updates 6-3

shutting down on an interface 6-12, 6-13

split horizon 6-6

stub routers 6-5

tuning 6-23

unicast RIB 6-4

verifying configuration 6-27

virtualization support 6-7

eigrp

passive interface 6-12

equal cost multipath 1-6

extended community lists

description 16-4

external BGP. See eBGP

F

FIB

clearing routes 15-9

description 1-12, 15-1

displaying 15-3

licensing requirements 15-3

verifying 15-10

virtualization support 15-3

VRFs 1-12

Fibre Channel interfaces

default settings 18-4

forwarding

adjacency manager 1-11

architecture 1-10, 15-1

FIB 1-11

unicast forwarding distribution module 1-11

forwarding information base. See FIB

G

glean throttling 2-5

maximum number 2-16

timeout 2-17

graceful restart

configuring in OSPFv3 5-36

gratuitous ARP

configuring 2-13

description 2-5

H

Hot Standby Router Protocol. See HSRP

HSRP

addressing 20-3

configuring a group 20-8

configuring priority 20-14

customizing 20-14

default settings 20-6

description 20-2, 20-5

disabling the feature 20-7

enabling the feature 20-7

example configuration 20-16

guidelines 20-6

licensing requirements 20-6

limitations 20-6

load sharing 20-4

messages 20-4

prerequisites 20-6

standby router 20-2

verifying configuration 20-16

virtualization support 20-5

HSRP authentication

configuring 20-10

description 20-4

HSRP object tracking

configuring 20-12

description 20-5

HSRP versions

configuring 20-8

description 20-4

HSRP virtual MAC address

configuring 20-10

description 20-2

I

iBGP

configuring route reflector 8-31

description 8-4

iBGP route reflector. See route reflector

ICMP

description 2-6

with local proxy ARP (note) 2-6

ICMPv6 3-11

packet header format (figure) 3-11

IDS, enabling 3-26

information about

ECMP for host routes 11-1

interfaces

default settings 18-4

internal BGP. See iBGP

Internet Control Message Protocol. See ICMP

IP

addresses 2-2

ARP. See ARP

configuring addresses 2-8

configuring secondary addresses 2-9

default settings 2-7

description 2-1, 2-6

example configuration 2-19

guidelines 2-7

ICMP. See ICMP

licensing requirements 2-7

limitations 2-7

packet header 3-7

prerequisites 2-7

secondary addresses (note) 2-2

subnet masks 2-1

verifying configuration 2-19

virtualization support 2-6

IPv4. See IP

IPv6 7-3

addresses compatible with IPv4 3-5

address formats 3-2

address formats (table) 3-2

CDP 3-11

configuring addresses 3-17

configuring neighbor discovery 3-23

default settings 3-17

description 3-1

DNS 3-10

enabling IDS checks 3-26

enabling packet verification 3-26

EUI-64 format 3-4

example configuration 3-27

guidelines 3-16

ICMP 3-11

interface ID 3-4

licensing requirements 3-16

limitations 3-16

link-local addresses 3-5

loopback address (note) 3-3

neighbor discovery 3-12

neighbor redirect message 3-15

neighbor solicitation message 3-12

packet header 3-7

path MTU discovery 3-10

prerequisites 3-16

RFC 3-3, 3-4

router advertisement message 3-13

site-local address 3-7

subnet ID 3-4

unicast addresses 3-3

unique local addresses 3-6

unspecified address (note) 3-3

verifying configuration 3-27

virtualization support 3-16

L

Layer 3 consistency checker

description 15-2

triggering 15-8

licensing requirements 7-7

BGP 8-10

ECMP for host routes 11-2

EIGRP 6-7

FIB 15-3

HSRP 20-6

IP 2-7

IPv6 3-16

object tracking 22-3

OSPF 4-12

OSPFv3 5-12

policy-based routing 17-3

RIP 12-4

Route Policy Manager 16-5

static routing 13-3

uRIB 15-3

VRF 14-5

VRRP 21-5

link-state advertisements 4-1

link-state routing algorithms 1-9

load 1-4

load balancing 1-6

Local Proxy ARP

configuring 2-12

description 2-5

LSAs 5-5

for OSPFv3 (table) 5-6

M

MAC lists

description 16-2

management interfaces

default settings 18-4

mgmt0 interfaces

default settings 18-4

MIBs

BGP 6-28, 7-28

OSPF 4-43, 20-17

OSPFv3 5-42

MP-BGP 8-10

configuring 8-40

Multiprotocol BGP

see MP-BGP

N

ND

configuring 3-23

description 3-12

neighbor discovery. See ND

neighbor redirect message 3-15

new and changed features (table) 1-1

next hop 1-2

NSSA 4-9

configuring 4-26

description for OSPFv3 5-9

O

object tracking

configuring a delay 22-10

configuring a track list with boolean expression 22-6

configuring a track list with percentage 22-7, 22-8

configuring for a nonDefault VRF 22-12

configuring for route reachability 22-5

configuring on an interface 22-4

default settings 22-3

description 22-1

example configuration 22-13

guidelines 22-3

licensing requirements 22-3

limitations 22-3

track list 22-2

verifying configuration 22-13

virtualization support 22-2

Open Shortest Path First. See OSPF

Open Shortest Path First version 3. See OSPFv3

OSPF

adjacency 4-1, 4-3

area border router 4-4

areas 4-1, 4-4

AS border router 4-5

authentication 4-7

backup designated router 4-3

BFD 4-11

configuring area authentication 4-19

configuring a totally stubby area 4-25

configuring authentication 4-18

configuring authentication on an interface 4-20

configuring DR priority 4-18

configuring ECMP 4-16

configuring filter lists 4-23

configuring load balancing 4-16

configuring MD5 authentication 4-20

configuring networks 4-16

configuring NSSA 4-26

configuring on an interface 4-16

configuring optional parameters on an interface 4-17

configuring redistribution 4-30

configuring route summarization 4-34

configuring simple password authentication 4-20

configuring stub areas 4-24

configuring stub route advertisements 4-35

configuring the hello interval 4-18

configuring virtual links 4-28

creating an instance 4-14

dead interval 4-2

default settings 4-12

delete an instance 4-15

description 4-1

designated router 4-3

disable the feature 4-14

displaying statistics 4-42

enable the feature 4-13

example configuration 4-42

guidelines 4-12

hello interval 4-2

hello packet 4-2

licensing requirements 4-12

limitations 4-12

link cost 4-6

link-state database 4-7

LSA 4-1

LSA flooding 4-6

LSA pacing 4-6

LSAs 4-5, 4-7

LSA types (table) 4-6

MIBs 4-43, 20-17

modifying default timers 4-36

multiple instances 4-11

neighbors 4-2

not-so-stubby area 4-9

NSSA 4-9

opaque LSAs 4-7

prerequisites 4-12

redistributed routes 4-32

restarting an instance 4-39

route redistribution

description 4-10

route summarization

description 4-10

shutting down an instance 4-18

SPF optimization 4-11

stub area 4-8

stub area (figure) 4-9

stub router advertisements

description 4-11

unicast RIB 4-7

verifying configuration 4-41

virtualization support 4-12

virtual link 4-9

virtual link (figure) 4-10

OSPFv2. See OSPF

OSPFv2 (Open Shortest Path First Version 2)

description 5-1

OSPFv3

address families 5-8

adjacency 5-3

areas 5-5

BFD 5-12

comparison to OSPFv2 5-2

configuring ECMP 5-17

configuring filter lists 5-20

configuring graceful restart 5-36

configuring load balancing 5-17

configuring networks 5-17

configuring NSSA 5-23

configuring redistribution 5-29

configuring route summarization 5-32

configuring stub areas 5-22

configuring totally stubby areas 5-23

configuring virtual links 5-27

configuring with VRFs 5-38

creating an instance 5-15

default settings 5-13

description 5-1

displaying statistics 5-41

enabling the feature 5-14

example configuration 5-41

guidelines 5-13

licensing requirements 5-12

limitations 5-13

link cost 5-6

link-state database 5-7

LSA flooding 5-7

LSA pacing 5-7

LSAs 5-5

LSA types (table) 5-6

MIBs 5-42

modifying default timers 5-34

multiple instances 5-12

neighbors 5-3

NSSA 5-9

prerequisites 5-13

redistributed routes 5-30

restarting an instance 5-37

RFC 5-2

route redistribution 5-10

route summarization 5-10

SPF optimization 5-12

unicast RIB 5-8

verifying configuration 5-40

virtualization support 5-12

virtual links 5-10

P

path length 1-4

path MTU discovery 3-10

policy-based routing

configuring a route policy 17-5

configuring match parameters 17-7

configuring set parameters 17-7

default settings 17-4

description 17-1

disabling 17-5

enabling 17-4

example configuration 17-8

feature history (table) 17-10

guidelines 17-3

licensing requirements 17-3

limitations 17-3

prerequisites 17-3

route maps 17-2

set criteria 17-2

verifying configuration 17-8

policy route maps

description 17-2

prefix lists

configuring 16-6

description 16-2

Proxy ARP

configuring 2-11

description 2-5

R

redistiribution

description 1-6

redistribution 1-5

BGP 8-9

configuring for OSPF 4-30

configuring for OSPFv3 5-29

configuring in BGP 8-38

configuring in RIP 12-12

configuring on EIGRP 6-17

EIGRP 6-6

maximum limit for EIGRP 6-19

maximum limit for OSPF 4-32

maximum limit for OSPFv3 5-30

with route maps 16-5

reliability 1-4

Reverse ARP

description 2-4

limitations 2-4

RFC 2-4

RIB

description 1-11, 15-2

see uRIB

RIP

clearing statistics 12-17

configuring a passive interface 12-11

configuring on an interface 12-8

default settings 12-4

description 12-2

disable the feature 12-6

displaying statistics 12-17

enabling the feature 12-5

example configuration 12-18

guidelines 12-4

licensing requirements 12-4

limitations 12-4

prerequisites 12-4

route filtering 12-3

tuning 12-16

verifying configuration 12-17

virtualization support 12-4

RIP authentication

configuring 12-9

description 12-2

RIP instance

creating 12-6

deleting 12-7

optional parameters 12-7

restarting 12-8

RIP load balancing

configuring 12-7

description 12-3

RIP route distribution

description 12-3

RIP route redistribution

configuring 12-12

RIP route summarization

configuring 12-11

description 12-3

RIP split horizon

configuring with poison reverse 12-11

description 12-2

route maps

configuring 16-12

configuring match parameters 16-13

configuring set parameters 16-14

description 16-3

example configuration 16-17

for policy -based routing 17-2

match criteria 16-3

redistribution 16-5

set changes 16-3

route metric

bandwidth 1-4

communication cost 1-4

delay 1-4

load 1-4

path length 1-4

reliability 1-4

route policy

configuring 17-5

configuring match parameters 17-7

configuring set parameters 17-7

description 17-1

example configuration 17-8

Route Policy Manager

default settings 16-6

example configuration 16-17

guidelines 16-5

licensing requirements 16-5

limitations 16-5

route policy manager

description 16-1

verifying configuration 16-17

router advertisement message 3-13

route redistribution

OSPFv3 5-10

route reflector

configuring 8-31

description 8-5

router ID

description 1-5

routes, estimating memory requirements 15-9

route summarization

configuring 4-34

configuring on EIGRP 6-16

EIGRP 6-6

OSPFv3 5-10, 5-32

RIP 12-3

route table

description 1-2

routing algorithms

distance vector 1-9

link-state 1-9

Routing Information Protocol. See RIP

routing metrics

description 1-2

routing protocols

administrative distance 1-7

comparing link-state algorithms to distance vector algorithms 1-9

convergence. convergence 1-6

description 1-1, 1-8

distance vector 1-9

link-state 1-9

next hop 1-2

redistribution 1-5, 1-6

virtualization 1-10

S

static routes

description 1-8

virtualization support 13-3

with ARP 2-3

static routing

administrative distance 13-2

configuring 13-4

configuring with VRFs 13-5

default settings 13-4

description 13-1

example configuration 13-6

guidelines 13-3

licensing requirements 13-3

limitations 13-3

prerequisites 13-3

verifying configuration 13-6

stub routing

description 1-7

U

uRIB

clearing routes 15-10

description 15-1

displaying 15-7

displaying (example) 15-8

Layer 3 consistency checker 15-2

licensing requirements 15-3

verifying 15-10

virtualization support 15-3

V

virtualization

description 1-10

Virtual Router Redundancy Protocol. See VRRP

VRF

assigning an interface to a VRF 14-8

configuring routing parameters 14-9

creating 14-7

default settings 14-6

deleting 14-8

example configuration 14-19

guidelines 14-5

licensing requirements 14-5

limitations 14-5

setting the routing context 14-12

setting the scope 14-12

verifying configuration 14-19

VRF-aware services

configuring 14-11

description 14-3

VRF filtering

description 14-4

example configuration 14-12

VRF-Lite

description 14-2

guidelines 14-5

limitations 14-5

VRF reachability

description 14-3

example configuration 14-12

VRRP

benefits 21-3

configuring time intervals for advertisement packets 21-12

default settings 21-6

description 21-1, 21-5

disabling the feature 21-7

displaying statistics 21-22

enabling the feature 21-7, 21-17

example configuration 21-22

guidelines 21-6

licensing requirements 21-5

limitations 21-6

verifying configuration 21-21

virtualization support 21-5

VRRP advertisements

description 21-5

VRRP authentication

configuring 21-10

description 21-5

VRRP groups

configuring 21-7, 21-17

description 21-3

VRRP priority

configuring 21-9

description 21-4

disabling preemption 21-13

preemption 21-4

VRRP tracking

configuring 21-15

Index

A

ABR 4-4

address formats

IPv4 2-2

IPv6 3-2

IPv6 (table) 3-2

address resolution protocol. See ARP

administrative distance

description 1-7

static routing 13-2

aggregatable global addresses. See IPv6

unicast addresses

areas 5-5

ARP

caching 2-3

configuring gratuitous ARP 2-13

configuring Local Proxy ARP 2-12

configuring Proxy ARP 2-11

configuring static ARP entries 2-10

description 2-3

gratuitous ARP 2-5

Local Proxy ARP 2-5

process (figure) 2-3

Proxy ARP 2-5

Reverse ARP 2-4

AS. See autonomous system

ASBR 4-5

AS confederations

configuring 8-29

description 8-5

AS numbers

4-byte support. 1-5

ranges (table) 1-5

AS-path lists

configuring 16-8

description 16-4

autonomous system

description 1-5

B

bandwidth 1-4

BDR 4-3

BFD

BGP 8-9, 13-3

configuring for BGP 18-12, 18-14, 18-18

configuring on an interface 18-8, 18-9

configuring session parameters 18-6

description 18-1

echo function 18-2

enable the feature 18-6

licensing 18-3

monitoring 18-23

OSPF 4-11

OSPFv3 5-12

session parameters 18-2

verifying 18-23

virtualization support 18-3

BGP 7-7

administrative distances (table) 7-2

BFD 8-9, 13-3

clearing neighbors 7-22

conditional advertisement 8-7

conditional advertisement example 8-38

configuration modes 7-8

configuring conditional advertisement 8-36

configuring dynamic capability 8-34

configuring maximum prefixes 8-34

configuring prefix peering 8-21

configuring route dampening 8-33

default settings 7-10, 8-12

description 7-1, 7-7, 8-1

disable the feature 7-12

displaying statistics 7-27, 8-49

eBGP 8-3

enable the feature 7-11

example configuration 7-27

generic specific extended community lists 16-5

guidelines 7-8, 8-11

iBGP 8-4

licensing requirements 7-7, 8-10

limitations 7-8, 8-11

MIBs 6-28, 7-28

modifying AS-paths 8-43

modifying next-hop address 8-23

MP-BGP 8-10

next-hop address tracking 8-8

path selection 7-4

prerequisites 7-7, 8-10

router ID 7-3

speakers 7-1

tuning 8-42

unicast RIB 7-7

verifying configuration 7-25, 8-48

virtualization support 7-7

BGP aggregate addresses

configuring 8-35

BGP AS-path lists

configuring 16-8

description 16-4

BGP authentication

configuring 8-22

description 8-2

BGP autonomous systems

description 7-2

BGP capabilities negotiation

description 8-6

disabling 8-25

BGP community lists

configuring 16-9, 16-11

description 16-4

BGP extended community lists

description 16-4

BGP instance

creating 7-12

deleting 7-13

restarting 7-13

BGP load balancing

configuring 8-34

BGP loadsharing

description 8-7

BGP multipath. See BGP loadsharing

BGP peers

authentication (note) 8-2

configuring 7-14, 7-17, 7-20

description 7-3

BGP route aggregation

description 8-7

BGP route dampening 8-6

BGP route redistribution

configuring 8-38

description 8-9

BGP sessions

reset options 8-3

resetting 8-22

route policies 8-3

BGP templates

configuring peer-policy templates 8-16

configuring peer templates 8-18

configuring session templates 8-13

description 8-2

peer-policy templates 8-2

peer-session templates 8-2

peer template 8-2

Border Gateway Protocol. See BGP

C

CDP 3-11

communication cost 1-4

community lists

configuring 16-9, 16-11

description 16-4

comparing

link-state and distance vector routing algorithms 1-9

D

default gateway

description 1-8

default settings

BGP 7-10, 8-12

ECMP for host routes 10-1, 11-2

EIGRP 6-8

HSRP 20-6

IP 2-7

IPv6 3-17

object tracking 22-3

OSPF 4-12

OSPFv3 5-13

policy-based routing 17-4

RIP 12-4

Route Policy Manager 16-6

static routing 13-4

VRF 14-6

VRRP 21-6

delay 1-4

distance vector routing algorithms 1-9

distribution

RIP 12-3

DNS 3-10

DR 4-3

E

eBGP

configuring 8-25

configuring AS confederations 8-29

configuring multihop 8-27

description 8-3

disabling fast external failover 8-28

disabling single-hop checking 8-26, 8-27

limiting the AS-path attribute 8-28

eBGP AS confederations. See AS confederations

ECMP. See equal cost multipath

ECMP for host routes

default settings 10-1, 11-2

example configuration 10-3, 11-4

information about 11-1

licensing requirements 11-2

verifying configuration 11-4

EIGRP

authentication 6-5

configuring a summary address 6-16

configuring authentication 6-13

configuring hello interval 6-22

configuring load balancing 6-21

configuring route redistribution 6-17

configuring stub routing 6-16

creating an instance 6-10

default settings 6-8

deleting an instance 6-11

description 6-1

disabling an instance 6-12

disabling split horizon 6-23

disabling the feature 6-9

displaying statistics 6-27

DUAL algorithm 6-2

ECMP 6-6

enabling the feature 6-9

example configuration 6-28

external route metrics 6-4

guidelines 6-7

hold time 6-2

internal route metrics 6-3

licensing requirements 6-7

limitations 6-7

limit redistributed routes 6-19

load balancing 6-6

neighbor discovery 6-2

prerequisites 6-7

restarting an instance 6-12

route redistribution 6-6

route summarization 6-6

route updates 6-3

shutting down on an interface 6-12, 6-13

split horizon 6-6

stub routers 6-5

tuning 6-23

unicast RIB 6-4

verifying configuration 6-27

virtualization support 6-7

eigrp

passive interface 6-12

equal cost multipath 1-6

extended community lists

description 16-4

external BGP. See eBGP

F

FIB

clearing routes 15-9

description 1-12, 15-1

displaying 15-3

licensing requirements 15-3

verifying 15-10

virtualization support 15-3

VRFs 1-12

Fibre Channel interfaces

default settings 18-4

forwarding

adjacency manager 1-11

architecture 1-10, 15-1

FIB 1-11

unicast forwarding distribution module 1-11

forwarding information base. See FIB

G

glean throttling 2-5

maximum number 2-16

timeout 2-17

graceful restart

configuring in OSPFv3 5-36

gratuitous ARP

configuring 2-13

description 2-5

H

Hot Standby Router Protocol. See HSRP

HSRP

addressing 20-3

configuring a group 20-8

configuring priority 20-14

customizing 20-14

default settings 20-6

description 20-2, 20-5

disabling the feature 20-7

enabling the feature 20-7

example configuration 20-16

guidelines 20-6

licensing requirements 20-6

limitations 20-6

load sharing 20-4

messages 20-4

prerequisites 20-6

standby router 20-2

verifying configuration 20-16

virtualization support 20-5

HSRP authentication

configuring 20-10

description 20-4

HSRP object tracking

configuring 20-12

description 20-5

HSRP versions

configuring 20-8

description 20-4

HSRP virtual MAC address

configuring 20-10

description 20-2

I

iBGP

configuring route reflector 8-31

description 8-4

iBGP route reflector. See route reflector

ICMP

description 2-6

with local proxy ARP (note) 2-6

ICMPv6 3-11

packet header format (figure) 3-11

IDS, enabling 3-26

information about

ECMP for host routes 11-1

interfaces

default settings 18-4

internal BGP. See iBGP

Internet Control Message Protocol. See ICMP

IP

addresses 2-2

ARP. See ARP

configuring addresses 2-8

configuring secondary addresses 2-9

default settings 2-7

description 2-1, 2-6

example configuration 2-19

guidelines 2-7

ICMP. See ICMP

licensing requirements 2-7

limitations 2-7

packet header 3-7

prerequisites 2-7

secondary addresses (note) 2-2

subnet masks 2-1

verifying configuration 2-19

virtualization support 2-6

IPv4. See IP

IPv6 7-3

addresses compatible with IPv4 3-5

address formats 3-2

address formats (table) 3-2

CDP 3-11

configuring addresses 3-17

configuring neighbor discovery 3-23

default settings 3-17

description 3-1

DNS 3-10

enabling IDS checks 3-26

enabling packet verification 3-26

EUI-64 format 3-4

example configuration 3-27

guidelines 3-16

ICMP 3-11

interface ID 3-4

licensing requirements 3-16

limitations 3-16

link-local addresses 3-5

loopback address (note) 3-3

neighbor discovery 3-12

neighbor redirect message 3-15

neighbor solicitation message 3-12

packet header 3-7

path MTU discovery 3-10

prerequisites 3-16

RFC 3-3, 3-4

router advertisement message 3-13

site-local address 3-7

subnet ID 3-4

unicast addresses 3-3

unique local addresses 3-6

unspecified address (note) 3-3

verifying configuration 3-27

virtualization support 3-16

L

Layer 3 consistency checker

description 15-2

triggering 15-8

licensing requirements 7-7

BGP 8-10

ECMP for host routes 11-2

EIGRP 6-7

FIB 15-3

HSRP 20-6

IP 2-7

IPv6 3-16

object tracking 22-3

OSPF 4-12

OSPFv3 5-12

policy-based routing 17-3

RIP 12-4

Route Policy Manager 16-5

static routing 13-3

uRIB 15-3

VRF 14-5

VRRP 21-5

link-state advertisements 4-1

link-state routing algorithms 1-9

load 1-4

load balancing 1-6

Local Proxy ARP

configuring 2-12

description 2-5

LSAs 5-5

for OSPFv3 (table) 5-6

M

MAC lists

description 16-2

management interfaces

default settings 18-4

mgmt0 interfaces

default settings 18-4

MIBs

BGP 6-28, 7-28

OSPF 4-43, 20-17

OSPFv3 5-42

MP-BGP 8-10

configuring 8-40

Multiprotocol BGP

see MP-BGP

N

ND

configuring 3-23

description 3-12

neighbor discovery. See ND

neighbor redirect message 3-15

new and changed features (table) 1-1

next hop 1-2

NSSA 4-9

configuring 4-26

description for OSPFv3 5-9

O

object tracking

configuring a delay 22-10

configuring a track list with boolean expression 22-6

configuring a track list with percentage 22-7, 22-8

configuring for a nonDefault VRF 22-12

configuring for route reachability 22-5

configuring on an interface 22-4

default settings 22-3

description 22-1

example configuration 22-13

guidelines 22-3

licensing requirements 22-3

limitations 22-3

track list 22-2

verifying configuration 22-13

virtualization support 22-2

Open Shortest Path First. See OSPF

Open Shortest Path First version 3. See OSPFv3

OSPF

adjacency 4-1, 4-3

area border router 4-4

areas 4-1, 4-4

AS border router 4-5

authentication 4-7

backup designated router 4-3

BFD 4-11

configuring area authentication 4-19

configuring a totally stubby area 4-25

configuring authentication 4-18

configuring authentication on an interface 4-20

configuring DR priority 4-18

configuring ECMP 4-16

configuring filter lists 4-23

configuring load balancing 4-16

configuring MD5 authentication 4-20

configuring networks 4-16

configuring NSSA 4-26

configuring on an interface 4-16

configuring optional parameters on an interface 4-17

configuring redistribution 4-30

configuring route summarization 4-34

configuring simple password authentication 4-20

configuring stub areas 4-24

configuring stub route advertisements 4-35

configuring the hello interval 4-18

configuring virtual links 4-28

creating an instance 4-14

dead interval 4-2

default settings 4-12

delete an instance 4-15

description 4-1

designated router 4-3

disable the feature 4-14

displaying statistics 4-42

enable the feature 4-13

example configuration 4-42

guidelines 4-12

hello interval 4-2

hello packet 4-2

licensing requirements 4-12

limitations 4-12

link cost 4-6

link-state database 4-7

LSA 4-1

LSA flooding 4-6

LSA pacing 4-6

LSAs 4-5, 4-7

LSA types (table) 4-6

MIBs 4-43, 20-17

modifying default timers 4-36

multiple instances 4-11

neighbors 4-2

not-so-stubby area 4-9

NSSA 4-9

opaque LSAs 4-7

prerequisites 4-12

redistributed routes 4-32

restarting an instance 4-39

route redistribution

description 4-10

route summarization

description 4-10

shutting down an instance 4-18

SPF optimization 4-11

stub area 4-8

stub area (figure) 4-9

stub router advertisements

description 4-11

unicast RIB 4-7

verifying configuration 4-41

virtualization support 4-12

virtual link 4-9

virtual link (figure) 4-10

OSPFv2. See OSPF

OSPFv2 (Open Shortest Path First Version 2)

description 5-1

OSPFv3

address families 5-8

adjacency 5-3

areas 5-5

BFD 5-12

comparison to OSPFv2 5-2

configuring ECMP 5-17

configuring filter lists 5-20

configuring graceful restart 5-36

configuring load balancing 5-17

configuring networks 5-17

configuring NSSA 5-23

configuring redistribution 5-29

configuring route summarization 5-32

configuring stub areas 5-22

configuring totally stubby areas 5-23

configuring virtual links 5-27

configuring with VRFs 5-38

creating an instance 5-15

default settings 5-13

description 5-1

displaying statistics 5-41

enabling the feature 5-14

example configuration 5-41

guidelines 5-13

licensing requirements 5-12

limitations 5-13

link cost 5-6

link-state database 5-7

LSA flooding 5-7

LSA pacing 5-7

LSAs 5-5

LSA types (table) 5-6

MIBs 5-42

modifying default timers 5-34

multiple instances 5-12

neighbors 5-3

NSSA 5-9

prerequisites 5-13

redistributed routes 5-30

restarting an instance 5-37

RFC 5-2

route redistribution 5-10

route summarization 5-10

SPF optimization 5-12

unicast RIB 5-8

verifying configuration 5-40

virtualization support 5-12

virtual links 5-10

P

path length 1-4

path MTU discovery 3-10

policy-based routing

configuring a route policy 17-5

configuring match parameters 17-7

configuring set parameters 17-7

default settings 17-4

description 17-1

disabling 17-5

enabling 17-4

example configuration 17-8

feature history (table) 17-10

guidelines 17-3

licensing requirements 17-3

limitations 17-3

prerequisites 17-3

route maps 17-2

set criteria 17-2

verifying configuration 17-8

policy route maps

description 17-2

prefix lists

configuring 16-6

description 16-2

Proxy ARP

configuring 2-11

description 2-5

R

redistiribution

description 1-6

redistribution 1-5

BGP 8-9

configuring for OSPF 4-30

configuring for OSPFv3 5-29

configuring in BGP 8-38

configuring in RIP 12-12

configuring on EIGRP 6-17

EIGRP 6-6

maximum limit for EIGRP 6-19

maximum limit for OSPF 4-32

maximum limit for OSPFv3 5-30

with route maps 16-5

reliability 1-4

Reverse ARP

description 2-4

limitations 2-4

RFC 2-4

RIB

description 1-11, 15-2

see uRIB

RIP

clearing statistics 12-17

configuring a passive interface 12-11

configuring on an interface 12-8

default settings 12-4

description 12-2

disable the feature 12-6

displaying statistics 12-17

enabling the feature 12-5

example configuration 12-18

guidelines 12-4

licensing requirements 12-4

limitations 12-4

prerequisites 12-4

route filtering 12-3

tuning 12-16

verifying configuration 12-17

virtualization support 12-4

RIP authentication

configuring 12-9

description 12-2

RIP instance

creating 12-6

deleting 12-7

optional parameters 12-7

restarting 12-8

RIP load balancing

configuring 12-7

description 12-3

RIP route distribution

description 12-3

RIP route redistribution

configuring 12-12

RIP route summarization

configuring 12-11

description 12-3

RIP split horizon

configuring with poison reverse 12-11

description 12-2

route maps

configuring 16-12

configuring match parameters 16-13

configuring set parameters 16-14

description 16-3

example configuration 16-17

for policy -based routing 17-2

match criteria 16-3

redistribution 16-5

set changes 16-3

route metric

bandwidth 1-4

communication cost 1-4

delay 1-4

load 1-4

path length 1-4

reliability 1-4

route policy

configuring 17-5

configuring match parameters 17-7

configuring set parameters 17-7

description 17-1

example configuration 17-8

Route Policy Manager

default settings 16-6

example configuration 16-17

guidelines 16-5

licensing requirements 16-5

limitations 16-5

route policy manager

description 16-1

verifying configuration 16-17

router advertisement message 3-13

route redistribution

OSPFv3 5-10

route reflector

configuring 8-31

description 8-5

router ID

description 1-5

routes, estimating memory requirements 15-9

route summarization

configuring 4-34

configuring on EIGRP 6-16

EIGRP 6-6

OSPFv3 5-10, 5-32

RIP 12-3

route table

description 1-2

routing algorithms

distance vector 1-9

link-state 1-9

Routing Information Protocol. See RIP

routing metrics

description 1-2

routing protocols

administrative distance 1-7

comparing link-state algorithms to distance vector algorithms 1-9

convergence. convergence 1-6

description 1-1, 1-8

distance vector 1-9

link-state 1-9

next hop 1-2

redistribution 1-5, 1-6

virtualization 1-10

S

static routes

description 1-8

virtualization support 13-3

with ARP 2-3

static routing

administrative distance 13-2

configuring 13-4

configuring with VRFs 13-5

default settings 13-4

description 13-1

example configuration 13-6

guidelines 13-3

licensing requirements 13-3

limitations 13-3

prerequisites 13-3

verifying configuration 13-6

stub routing

description 1-7

U

uRIB

clearing routes 15-10

description 15-1

displaying 15-7

displaying (example) 15-8

Layer 3 consistency checker 15-2

licensing requirements 15-3

verifying 15-10

virtualization support 15-3

V

virtualization

description 1-10

Virtual Router Redundancy Protocol. See VRRP

VRF

assigning an interface to a VRF 14-8

configuring routing parameters 14-9

creating 14-7

default settings 14-6

deleting 14-8

example configuration 14-19

guidelines 14-5

licensing requirements 14-5

limitations 14-5

setting the routing context 14-12

setting the scope 14-12

verifying configuration 14-19

VRF-aware services

configuring 14-11

description 14-3

VRF filtering

description 14-4

example configuration 14-12

VRF-Lite

description 14-2

guidelines 14-5

limitations 14-5

VRF reachability

description 14-3

example configuration 14-12

VRRP

benefits 21-3

configuring time intervals for advertisement packets 21-12

default settings 21-6

description 21-1, 21-5

disabling the feature 21-7

displaying statistics 21-22

enabling the feature 21-7, 21-17

example configuration 21-22

guidelines 21-6

licensing requirements 21-5

limitations 21-6

verifying configuration 21-21

virtualization support 21-5

VRRP advertisements

description 21-5

VRRP authentication

configuring 21-10

description 21-5

VRRP groups

configuring 21-7, 21-17

description 21-3

VRRP priority

configuring 21-9

description 21-4

disabling preemption 21-13

preemption 21-4

VRRP tracking

configuring 21-15