Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
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Index

Table Of Contents

A - B - C - D - E - F - G - H - I - L - M - N - O - P - R - S - U - V - W -

Index

A

ABR 6-4

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 7-5

ARP

caching 2-3

configuring gratuitous ARP 2-12

configuring Local Proxy ARP 2-11

configuring Proxy ARP 2-10

configuring static ARP entries 2-9

description 2-2

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 6-5

AS confederations

configuring 11-25

description 11-4

AS numbers

4-byte support. 1-5

ranges (table) 1-5

AS-path lists

configuring 16-8

description 16-3

autonomous system

description 1-5

B

bandwidth 1-4

BDR 6-3

BGP 10-7

administrative distances (table) 10-2

clearing neighbors 10-18

conditional advertisement 11-8

conditional advertisement example 11-32

configuration modes 10-8

configuring conditional advertisement 11-30

configuring dynamic capability 11-29

configuring maximum prefixes 11-29

configuring prefix peering 11-21

configuring route dampening 11-28

configuring with VRFs 11-40

default settings 10-24, 11-44

description10-1to10-7, 11-1to 11-11

disable the feature 10-11

displaying statistics 10-23, 11-44

eBGP 11-3

enable the feature 10-10

example configuration 10-23

feature history (table) 10-25, 16-19

generic specific extended community lists 16-4

guidelines 10-8, 11-12

high availability 11-10

iBGP 11-3

ISSU 11-11

licensing requirements 10-7, 11-11

limitations 10-8, 11-12

MIBs 8-32, 10-25

modifying next-hop address 11-22

MP-BGP 11-9

next-hop address tracking 11-8

path selection 10-4

prerequisites 10-7, 11-12

router ID 10-4

speakers 10-1

tuning 11-36

unicast RIB 10-7

verifying configuration 10-21, 11-42

virtualization support 10-7, 11-11

BGP aggregate addresses

configuring 11-30

BGP AS-path lists

configuring 16-8

description 16-3

BGP authentication

configuring 11-21

description 11-2

BGP autonomous systems

description 10-2

BGP capabilities negotiation

description 11-6

disabling 11-24

BGP community lists

configuring 16-9, 16-10

description 16-4

BGP extended community lists

description 16-4

BGP graceful restart

configuring 11-39

description 11-10

BGP instance

creating 10-11

deleting 10-13

restarting 10-13

BGP load balancing

configuring 11-29

BGP loadsharing

description 11-7

BGP multipath. See BGP loadsharing

BGP peers

authentication (note) 11-2

configuring 10-14, 10-16

description 10-3

BGP route aggregation

description 11-7

BGP route dampening 11-6

BGP route redistribution

configuring 11-32

description 11-9

BGP sessions

reset options 11-3

resetting 11-22

route policies 11-3

BGP templates

configuring peer-policy templates 11-16

configuring peer templates 11-18

configuring session templates 11-13

description 11-2

peer-policy templates 11-2

peer-session templates 11-2

peer template 11-2

Border Gateway Protocol. See BGP

C

CDP 3-12

communication cost 1-4

community lists

configuring 16-9, 16-10

description 16-4

comparing

link-state and distance vector routing algorithms 1-9

configuration limits

description (table) 2-1

D

default gateway

description 1-8

default settings

BGP 10-24, 11-44

DNS 4-7

EIGRP 8-31

GLBP 5-13, 18-16

HSRP 19-18

IP 2-15

IPv6 3-24

IS-IS 9-30

object tracking 21-14

OSPF 6-45

OSPFv3 7-41

policy-based routing 17-8

RIP 12-18

Route Policy Manager 16-18

static routing 13-7

VRF 14-14

VRRP 20-21

delay 1-4

distance vector routing algorithms 1-9

distribution

RIP 12-3

DNS 3-12

configuring clients 4-3

configuring with VRFs 4-5

default settings 4-7

description 4-1

example configuration 4-7

feature history (table) 4-8

guidelines 4-3

high availability 4-2

licensing requirements 4-2

limitations 4-3

name servers 4-2

operation 4-2

prerequisites 4-3

verifying configuration 4-7

virtualization 4-2

documentation

additional publications iii-v

updates iii-vi

domain name server. See DNS

DR 6-3

E

eBGP

configuring 11-24

configuring AS confederations 11-25

configuring multihop 11-25

description 11-3

disabling fast external fallover 11-25

disabling single-hop checking 11-24

limiting the AS-path attribute 11-25

eBGP AS confederations. See AS confederations

ECMP. See equal cost multipath

EIGRP

authentication 8-5

configuring a summary address 8-17

configuring authentication 8-14

configuring graceful restart 8-23

configuring hello interval 8-25

configuring load balancing 8-22

configuring route redistribution 8-18

configuring stub routing 8-17

configuring with VRFs 8-28

creating an instance 8-10

default settings 8-31

deleting an instance 8-12

description8-1to 8-8

disabling an instance 8-13

disabling split horizon 8-25

disabling the feature 8-10

displaying statistics 8-30

DUAL algorithm 8-3

ECMP 8-6

enabling the feature 8-9

example configuration 8-30

external route metrics 8-4

feature history (table) 8-32

graceful restart 8-7

guidelines 8-9

high availability 8-7

hold time 8-2

internal route metrics 8-3

licensing requirements 8-8

limitations 8-9

limit redistributed routes 8-20

load balancing 8-6

neighbor discovery 8-2

prerequisites 8-8

restarting an instance 8-12

route redistribution 8-6

route summarization 8-6

route updates 8-3

shutting down on an interface 8-13, 8-14

split horizon 8-7

stub routers 8-6

tuning 8-26

unicast RIB 8-4

verifying configuration 8-30

virtualization support 8-7

eigrp

passive interface 8-13

equal cost multipath 1-6

extended community lists

description 16-4

external BGP. See eBGP

F

FIB

clearing routes 15-10

description 1-12, 15-1

disabling dynamic TCAM allocation 15-10

displaying 15-4

dynamic TCAM allocation 15-3

enabling dynamic TCAM allocation 15-10

feature history (table) 15-14

guidelines 15-3

licensing requirements 15-3

limitations 15-3

verifying 15-13

virtualization support 15-3

VRFs 1-12

forwarding

adjacency manager 1-11

architecture 1-11, 15-1

FIB 1-12

unicast forwarding distribution module 1-12

forwarding information base. See FIB

G

Gateway Load Balancing Protocol. See GLBP

GLBP

configuring authentication 18-8

configuring load balancing 18-10

configuring weighting and tracking 18-10

customizing 18-13

default settings 5-13, 18-16

description 18-1

enabling a group 18-14

enabling the feature 18-7

example configuration 18-15

feature history (table) 5-13, 18-17

verifying configuration 5-12, 18-15

graceful restart

BGP 11-10

configuring in BGP 11-39

configuring in EIGRP 8-23

configuring in IS-IS 9-22

configuring in OSPF 6-40

configuring in OSPFv3 7-36

EIGRP 8-7

OSPF 6-11

gratuitous ARP

configuring 2-12

description 2-5

H

high availability

BGP 11-10

DNS 4-2

EIGRP 8-7

object tracking 21-3

OSPF 6-11

RIP 12-4

Hot Standby Router Protocol. See HSRP

HSRP

addressing 19-4

configuring a group 19-8

configuring extended hold timers 19-16

configuring priority 19-14

customizing 19-15

default settings 19-18

description19-2to 19-6

disabling the feature 19-8

enabling the feature 19-8

example configuration 19-17

extended NSF 19-6

feature history (table) 19-19

guidelines 19-7

hold timers 19-6

licensing requirements 19-6

limitations 19-7

load sharing 19-4

messages 19-4

prerequisites 19-6

standby router 19-2

verifying configuration 19-17

virtualization support 19-6

vPC support 19-5

HSRP authentication

configuring 19-11

description 19-4

HSRP object tracking

configuring 19-12

description 19-5

HSRP versions

configuring 19-10

description 19-3

HSRP virtual MAC address

configuring 19-10

description 19-2

I

iBGP

configuring route reflector 11-26

description 11-3

iBGP route reflector. See route reflector

ICMP

description 2-5

with local proxy ARP (note) 2-6

ICMPv6 3-12

packet header format (figure) 3-13

IDS, enabling 2-13, 3-23

Intermediate System-to-Intermediate System. See IS-IS

internal BGP. See iBGP

Internet Control Message Protocol. See ICMP

IP

addresses 2-2

ARP. See ARP

configuring addresses 2-7

configuring secondary addresses 2-8

default settings 2-15

description2-1to2-6, ??to 15-3

enabling IDS checks 2-13

enabling packet verification 2-13

example configuration 2-15

feature history (table) 2-16

guidelines 2-6

ICMP. See ICMP

licensing requirements 2-6

limitations 2-6

packet header 3-9

prerequisites 2-6

secondary addresses (note) 2-2

subnet masks 2-1

verifying configuration 2-15

virtualization support 2-6

IPv4. See IP

IPv6

addresses compatible with IPv4 3-5

address formats 3-2

address formats (table) 3-2

anycast addresses 3-7

CDP 3-12

configuring addresses 3-19

configuring neighbor discovery 3-20

default settings 3-24

description3-1to 3-17

DNS 3-12

enabling IDS checks 3-23

enabling packet verification 3-23

EUI-64 format 3-4

example configuration 3-24

feature history (table) 3-25

guidelines 3-18

ICMP 3-12

interface ID 3-4

licensing requirements 3-18

limitations 3-18

link-local addresses 3-5

loopback address (note) 3-3

multicast addresses 3-7

neighbor discovery 3-13

neighbor redirect message 3-16

neighbor solicitation message 3-13

packet header 3-9

path MTU discovery 3-12

prerequisites 3-18

RFC 3-3, 3-4

router advertisement message 3-15

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 3-24

virtualization support 3-17

IS-IS

address families 9-7

clearing statistics 9-29

configuration modes 9-7

configuring dynamic host exchange 9-16

configuring on an interface 9-11

configuring with VRFs 9-23

default settings 9-30

description9-1to 9-5

disabling the feature 9-8

displaying statistics 9-29

enabling the feature 9-7

example configuration 9-29

feature history (table) 9-31

guidelines 9-6

licensing requirements 9-6

limitations 9-6

limit redistributed routes 9-20

LSPs 9-2

NET 9-3

prerequisites 9-6

shut down an interface 9-13

system ID 9-3

tuning 9-26

verifying configuration 9-28

virtualization support 9-5

IS-IS areas

description 9-2

IS-IS authentication

configuring in an area 9-13

configuring on an interface 9-14

description 9-3

IS-IS designated intermediate system 9-3

configuring 9-16

IS-IS graceful restart

configuring 9-22

IS-IS instances

configuring optional parameters 9-10

creating 9-8

deleting 9-9

multiple instance support 9-5

restarting 9-10

IS-IS load balancing

configuring 9-10

description 9-5

IS-IS mesh group

configuring 9-16

IS-IS mess group

description 9-4

IS-IS overload bit

configuring 9-16

description 9-4

IS-IS route redistribution

configuring 9-19

description 9-5

IS-IS route summarization

configuring 9-17

description 9-4

ISSU

BGP 11-11

L

Layer 3 consistency checker

description 15-2

triggering 15-9

licensing requirements 10-7

BGP 11-11

DNS 4-2

EIGRP 8-8

FIB 15-3

HSRP 19-6

IP 2-6

IPv6 3-18

IS-IS 9-6

object tracking 21-3

OSPF 6-12

OSPFv3 7-12

policy-based routing 17-3

RIP 12-4

Route Policy Manager 16-5

static routing 13-3

uRIB 15-3

VRF 14-5

VRRP 20-6

limits

description (table) 2-1

link-state advertisements 6-1

link-state routing algorithms 1-9

load 1-4

load balancing 1-6

Local Proxy ARP

configuring 2-11

description 2-5

LSAs 7-5

for OSPFv3 (table) 7-6

M

MIBs

BGP 8-32, 10-25

OSPF 6-47, 19-19

OSPFv3 7-43

MP-BGP 11-9

configuring 11-35

Multiprotocol BGP

see MP-BGP

N

ND

configuring 3-20

description 3-13

neighbor discovery. See ND

neighbor redirect message 3-16

new and changed features (table) ii-i

next hop 1-2

NSSA 6-9

configuring 6-27

description for OSPFv3 7-9

O

object tracking

configuring a delay 21-11

configuring a track list with boolean expression 21-6

configuring a track list with percentage 21-8, 21-9

configuring for a nonDefault VRF 21-12

configuring for GLBP 18-10

configuring for route reachability 21-5

configuring on an interface 21-4

default settings 21-14

description 21-1

example configuration 21-14

feature history (table) 21-15

guidelines 21-3

high availability 21-3

licensing requirements 21-3

limitations 21-3

prerequisites 21-3

track list 21-2

verifying configuration 21-14

virtualization support 21-3

Open Shortest Path First. See OSPF

Open Shortest Path First version 3. See OSPFv3

OSPF

adjacency 6-1, 6-3

area border router 6-4

areas 6-1, 6-4

AS border router 6-5

authentication 6-7

backup designated router 6-3

configuring area authentication 6-20

configuring a totally stubby area 6-26

configuring authentication 6-19

configuring authentication on an interface 6-21

configuring DR priority 6-19

configuring ECMP 6-17

configuring filter lists 6-23

configuring graceful restart 6-40

configuring load balancing 6-17

configuring MD5 authentication 6-20

configuring networks 6-17

configuring NSSA 6-27

configuring on an interface 6-17

configuring optional parameters on an interface 6-18

configuring redistribution 6-31

configuring route summarization 6-35

configuring simple password authentication 6-20

configuring stub areas 6-25

configuring stub route advertisements 6-36

configuring the hello interval 6-19

configuring virtual links 6-29

configuring with VRFs 6-42

creating an instance 6-15

dead interval 6-2

default settings 6-45

delete an instance 6-16

description6-1to 6-12

designated router 6-3

disable the feature 6-14

displaying statistics 6-45

enable the feature 6-14

example configuration 6-45

feature history (table) 6-47

graceful restart 6-11

guidelines 6-13

hello interval 6-2

hello packet 6-2

high availability 6-11

licensing requirements 6-12

limitations 6-13

link cost 6-6

link-state database 6-7

LSA 6-1

LSA flooding 6-6

LSA pacing 6-6

LSAs6-5to 6-7

LSA types (table) 6-6

MIBs 6-47, 19-19

modifying default timers 6-37

multiple instances 6-12

neighbors 6-2

not-so-stubby area 6-9

NSSA 6-9

opaque LSAs 6-7

prerequisites 6-13

redistributed routes 6-33

restarting an instance 6-41

route redistribution

description 6-10

route summarization

description 6-10

shutting down an instance 6-19

SPF optimization 6-12

stub area 6-8

stub area (figure) 6-9

stub router advertisements

description 6-12

unicast RIB 6-7

verifying configuration 6-44

virtualization support 6-12

virtual link 6-9

virtual link (figure) 6-10

OSPFv2 (Open Shortest Path First Version 2)

description 7-1

OSPFv2. See OSPF

OSPFv3

address families 7-8

adjacency 7-3

areas 7-5

comparison to OSPFv2 7-2

configuring ECMP 7-16

configuring filter lists 7-20

configuring graceful restart 7-36

configuring load balancing 7-16

configuring networks 7-17

configuring NSSA 7-23

configuring redistribution 7-28

configuring route summarization 7-32

configuring stub areas 7-21

configuring totally stubby areas 7-22

configuring virtual links 7-26

configuring with VRFs 7-38

creating an instance 7-14

default settings 7-41

description7-1to 7-12

disabling the feature 7-14

displaying statistics 7-40

enabling the feature 7-13

example configuration 7-41

feature history (table) 7-43

guidelines 7-13

licensing requirements 7-12

limitations 7-13

link cost 7-6

link-state database 7-7

LSA flooding 7-7

LSA pacing 7-7

LSAs 7-5

LSA types (table) 7-6

MIBs 7-43

modifying default timers 7-34

multiple instances 7-12

neighbors 7-3

NSSA 7-9

prerequisites 7-12

redistributed routes 7-30

restarting an instance 7-37

RFC 7-2

route redistribution 7-10

route summarization 7-10

SPF optimization 7-12

unicast RIB 7-8

verifying configuration 7-40

virtualization support 7-12

virtual links 7-10

P

path length 1-4

path MTU discovery 3-12

policy-based routing

configuring a route policy 17-5

configuring match parameters 17-6

configuring set parameters 17-6

default settings 17-8

description 17-1

disabling 17-4

enabling 17-4

example configuration 17-7

feature history (table) 17-9

guidelines 17-3

licensing requirements 17-3

limitations 17-3

prerequisites 17-3

route maps 17-2

set criteria 17-2

verifying configuration 17-7

policy route maps

description 17-2

prefix lists

configuring 16-6

description 16-2

Proxy ARP

configuring 2-10

description 2-5

R

Really Simple Syndication. See RSS

redistiribution

description 1-6

redistribution 1-5

BGP 11-9

configuring for OSPF 6-31

configuring for OSPFv3 7-28

configuring in BGP 11-32

configuring in IS-IS 9-19

configuring in RIP 12-11

configuring on EIGRP 8-18

EIGRP 8-6

IS-IS 9-5

maximum limit for EIGRP 8-20

maximum limit for IS-IS 9-20

maximum limit for OSPF 6-33

maximum limit for OSPFv3 7-30

with route maps 16-4

related documents iii-v

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 12-10

configuring on an interface 12-8

configuring with VRFs 12-13

default settings 12-18

description 12-2

disable the feature 12-6

displaying statistics 12-17

enabling the feature 12-5

example configuration 12-18

feature history (table) 12-19

guidelines 12-4

high availability 12-4

licensing requirements 12-4

limitations 12-4

prerequisites 12-4

route filtering 12-3

tuning 12-15

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 12-4

RIP route distribution

description 12-3

RIP route redistribution

configuring 12-11

RIP route summarization

configuring 12-11

description 12-3

RIP split horizon

configuring with poison reverse 12-11

description 12-2

route maps

configuring 16-11

configuring match parameters 16-12

configuring set parameters 16-14

description 16-2

example configuration 16-17

for policy -based routing 17-2

match criteria 16-2

redistribution 16-4

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 17-6

configuring set parameters 17-6

description 17-1

example configuration 17-7

Route Policy Manager

default settings 16-18

example configuration 16-17

guidelines 16-5

licensing requirements 16-5

limitations 16-5

prerequisite 16-5

route policy manager

description16-1to 16-5

verifying configuration 16-17

router advertisement message 3-15

route redistribution

OSPFv3 7-10

route reflector

configuring 11-26

description 11-5

router ID

description 1-5

routes, estimating memory requirements 15-12

route summarization

configuring 6-35

configuring in IS-IS 9-17

configuring on EIGRP 8-17

EIGRP 8-6

ISIS 9-4

OSPFv3 7-10, 7-32

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

description1-1to 1-8

distance vector 1-9

link-state 1-9

next hop 1-2

redistribution 1-5, 1-6

virtualization 1-10

RSS

documentation feed iii-vi

S

service

requests iii-vi

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 13-7

description 13-1

example configuration 13-6

feature history (table) 13-7

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 15-13

description 15-1

displaying 15-7

displaying (example) 15-8

feature history (table) 15-14

guidelines 15-3

Layer 3 consistency checker 15-2

licensing requirements 15-3

limitations 15-3

verifying 15-13

virtualization support 15-3

V

virtualization

description 1-10, 14-1

layer 3 (figure) 1-10

Virtual Router Redundancy Protocol. See VRRP

VRF

assigning an interface to a VRF 14-8

configuring routing parameters 14-9

creating 14-6

default settings 14-14

deleting 14-7

description 14-2

example configuration 14-13

guidelines 14-6

licensing requirements 14-5

limitations 14-6

prerequisites 14-6

setting the routing context 14-12

setting the scope 14-12

verifying configuration 14-13

vrf

feature history (table) 14-15

VRF-aware services

configuring 14-11

description 14-3

VRF filtering

description 14-4

example configuration 14-12

VRF reachability

description 14-4

example configuration 14-12

VRRP

benefits 20-3

clearing statistics 20-20

configuring time intervals for advertisement packets 20-13

default settings 20-21

description20-1to 20-6

disabling the feature 20-7

displaying statistics 20-20

enabling the feature 20-7

example configuration 20-20

feature history (table) 20-22

guidelines 20-6

licensing requirements 20-6

limitations 20-6

verifying configuration 20-19

virtualization support 20-6

vPC support 20-5

VRRP advertisements

description 20-5

VRRP authentication

configuring 20-11

description 20-5

VRRP groups

configuring 20-8

description 20-3

VRRP priority

configuring 20-9

description 20-4

disabling preemption 20-15

preemption 20-4

VRRP tracking

configuring 20-17

description 20-5

W

Web Cache Communication Protocol. See WCCP