- New and Changed Information
- Preface
- Overview
- Part 1: IP
- Configuring IPv4
- Configuring IPv6
- Part 2: Routing
- Configuring OSPF
- Configuring OSPFv3
- Configuring EIGRP
- Configuring Basic BGP
- Configuring Advanced BGP
- Configuring Bidirectional Forwarding Detection
- Configuring ECMP for Host Routes
- Configuring RIP
- Configuring Static Routing
- Configuring Layer 3 Virtualization
- Configuring the Unicast RIB and FIB
- Configuring Route Policy Manager
- Part 3: First-Hop Redundancy Protocols
- Configuring HSRP
- Configuring VRRP
- Configuring Object Tracking
- IETF RFCs
- Glossary
- Index
A -
B -
C -
D -
E -
F -
G -
H -
I -
L -
M -
N -
O -
P -
R -
S -
U -
V -
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 11-2
aggregatable global addresses. See IPv6
areas 5-5
ARP
caching 2-3
configuring gratuitous ARP 2-14
configuring Local Proxy ARP 2-13
configuring Proxy ARP 2-12
configuring static ARP entries 2-11
description 2-2
gratuitous ARP 2-5
Local Proxy ARP 2-5
process (figure) 2-3
Proxy ARP 2-5
Reverse ARP 2-4
ASBR 4-5
AS confederations
configuring 8-25
description 8-4
AS numbers
4-byte support. 1-5
ranges (table) 1-5
AS-path lists
configuring 14-9
description 14-4
autonomous system
description 1-5
B
bandwidth 1-4
BDR 4-3
BFD
configuring for BGP 15-12, 15-13
configuring on an interface 15-7, 15-8
configuring session parameters 15-6
description15-1to ??
echo function 15-2
enable the feature 15-5
HSRP 16-7
licensing 15-3
monitoring 15-17
optimizing subinterfaces 15-11
OSPF 4-12
OSPFv3 5-13
session parameters 15-2
static routes 11-3
verifying 15-16
virtualization support 15-3
BGP 7-7
administrative distances (table) 7-2
clearing neighbors 7-18
conditional advertisement 8-7
conditional advertisement example 8-33
configuration modes 7-8
configuring conditional advertisement 8-31
configuring dynamic capability 8-30
configuring maximum prefixes 8-30
configuring prefix peering 8-19
configuring route dampening 8-29
disable the feature 7-11
displaying statistics 7-23, 8-42
eBGP 8-3
enable the feature 7-11
example configuration 7-23
feature history (table) 7-24, 14-19
generic specific extended community lists 14-4
iBGP 8-3
licensing requirements 7-7, 8-10
modifying AS-paths 8-37
modifying next-hop address 8-20
MP-BGP 8-9
next-hop address tracking 8-8
path selection 7-4
router ID 7-4
speakers 7-1
tuning 8-36
unicast RIB 7-7
verifying configuration 7-21, 8-41
virtualization support 7-7
BGP aggregate addresses
configuring 8-31
BGP AS-path lists
configuring 14-9
description 14-4
BGP authentication
configuring 8-20
description 8-2
BGP autonomous systems
description 7-2
BGP capabilities negotiation
description 8-6
disabling 8-22
BGP community lists
description 14-4
BGP extended community lists
description 14-4
BGP instance
creating 7-12
deleting 7-13
restarting 7-13
BGP load balancing
configuring 8-30
BGP loadsharing
description 8-6
BGP multipath. See BGP loadsharing
BGP peers
authentication (note) 8-2
description 7-3
BGP route aggregation
description 8-7
BGP route dampening 8-6
BGP route redistribution
configuring 8-33
description 8-8
BGP sessions
reset options 8-3
resetting 8-20
route policies 8-3
BGP templates
configuring peer-policy templates 8-14
configuring peer templates 8-16
configuring session templates 8-12
description 8-2
peer-policy templates 8-2
peer-session templates 8-2
peer template 8-2
bidirectional forwarding detection
see BFD 11-3
Border Gateway Protocol. See BGP
C
CDP 3-11
communication cost 1-4
community lists
description 14-4
comparing
link-state and distance vector routing algorithms 1-9
D
default gateway
description 1-8
default settings
ECMP for host routes 9-2
EIGRP 6-8
HSRP 16-8
IP 2-7
IPv6 3-16
object tracking 18-4
OSPF 4-14
OSPFv3 5-14
RIP 10-5
Route Policy Manager 14-6
static routing 11-4
VRF 12-7
VRRP 17-6
delay 1-4
distance vector routing algorithms 1-9
distribution
RIP 10-3
DNS 3-10
DR 4-3
E
eBGP
configuring 8-22
configuring AS confederations 8-25
configuring multihop 8-23
description 8-3
disabling fast external failover 8-24
disabling single-hop checking 8-22, 8-23
limiting the AS-path attribute 8-24
eBGP AS confederations. See AS confederations
ECMP. See equal cost multipath
ECMP for host routes
default settings 9-2
example configuration 9-4
feature history (table) 9-5
information about 9-1
licensing requirements 9-2
verifying configuration 9-4
EIGRP
authentication 6-5
configuring a summary address 6-18
configuring authentication 6-15
configuring hello interval 6-24
configuring load balancing 6-23
configuring route redistribution 6-18
configuring stub routing 6-17
configuring with VRFs 6-27
creating an instance 6-10
default settings 6-8
deleting an instance 6-12
description6-1to ??
disabling an instance 6-13
disabling split horizon 6-25
disabling the feature 6-10
displaying statistics 6-29
DUAL algorithm 6-3
ECMP 6-6
enabling the feature 6-9
example configuration 6-30
external route metrics 6-4
feature history (table) 6-31
guidelines 6-8
hold time 6-2
internal route metrics 6-3
licensing requirements 6-7
limitations 6-8
limit redistributed routes 6-20
load balancing 6-6
neighbor discovery 6-2
prerequisites 6-7
restarting an instance 6-13
route redistribution 6-6
route summarization 6-6
route updates 6-3
shutting down on an interface 6-14
split horizon 6-6
stub routers 6-5
tuning 6-25
unicast RIB 6-4
verifying configuration 6-29
virtualization support 6-7
eigrp
passive interface 6-14
equal cost multipath 1-6
extended community lists
description 14-4
F
FIB
clearing routes 13-10
displaying 13-5
feature history (table) 13-12
guidelines 13-3
licensing requirements 13-3
limitations 13-3
verifying 13-11
virtualization support 13-3
VRFs 1-12
Fibre Channel interfaces
default settings 15-4
forwarding
adjacency manager 1-11
FIB 1-12
unicast forwarding distribution module 1-12
forwarding information base. See FIB
G
glean throttling 2-5
generating a syslog 2-19
maximum number 2-17
timeout 2-18
graceful restart
configuring in OSPF 4-49
configuring in OSPFv3 5-37
OSPF 4-11
gratuitous ARP
configuring 2-14
description 2-5
H
high availability
object tracking 18-3
OSPF 4-11
RIP 10-4
Hot Standby Router Protocol. See HSRP
HSRP
addressing 16-3
BFD 16-7
configuring a group 16-10
configuring an IPv6 group 16-13
configuring extended hold timers 16-22
configuring priority 16-20
customizing 16-21
default settings 16-8
disabling the feature 16-10
enabling the feature 16-9
example configuration 16-23
extended NSF 16-7
feature history (table) 16-24
guidelines 16-8
hold timers 16-7
licensing requirements 16-8
limitations 16-8
load sharing 16-6
messages 16-5
prerequisites 16-8
standby router 16-2
verifying configuration 16-23
virtualization support 16-7
HSRP authentication
configuring 16-16
description 16-5
HSRP object tracking
configuring 16-18
description 16-7
HSRP versions
configuring 16-10
description 16-5
HSRP virtual MAC address
configuring 16-15
description 16-2
I
iBGP
configuring route reflector 8-27
description 8-3
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 3-22
information about
ECMP for host routes 9-1
interfaces
default settings 15-4
Internet Control Message Protocol. See ICMP
IP
addresses 2-2
configuring addresses 2-8
configuring secondary addresses 2-10
default settings 2-7
example configuration 2-20
feature history (table) 2-21
guidelines 2-7
licensing requirements 2-6
limitations 2-7
packet header 3-7
prerequisites 2-6
secondary addresses (note) 2-2
subnet masks 2-1
verifying configuration 2-20
virtualization support 2-6
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 3-19
default settings 3-16
description3-1to ??
DNS 3-10
enabling IDS checks 3-22
enabling packet verification 3-22
EUI-64 format 3-4
example configuration 3-23
feature history (table) 3-24
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 3-14
neighbor solicitation message 3-12
packet header 3-7
path MTU discovery 3-10
prerequisites 3-16
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 3-23
virtualization support 3-15
L
Layer 3 consistency checker
description 13-2
triggering 13-9
licensing requirements 7-7
BGP 8-10
ECMP for host routes 9-2
EIGRP 6-7
FIB 13-3
HSRP 16-8
IP 2-6
IPv6 3-16
object tracking 18-3
OSPF 4-13
OSPFv3 5-13
RIP 10-4
Route Policy Manager 14-5
static routing 11-3
uRIB 13-3
VRF 12-6
VRRP 17-6
link-state advertisements 4-1
link-state routing algorithms 1-9
load 1-4
load balancing 1-6
Local Proxy ARP
configuring 2-13
description 2-5
LSAs 5-6
for OSPFv3 (table) 5-6
M
MAC lists
description 14-2
management interfaces
default settings 15-4
mgmt0 interfaces
default settings 15-4
MIBs
OSPFv3 5-43
MP-BGP 8-9
configuring 8-35
Multiprotocol BGP
N
ND
configuring 3-19
description 3-12
neighbor redirect message 3-14
new and changed features (table) ii-xxiii
next hop 1-2
NSSA 4-9
configuring 4-32
description for OSPFv3 5-10
O
object tracking
configuring a delay 18-11
configuring a track list with boolean expression 18-7
configuring a track list with percentage 18-8, 18-10
configuring for a nonDefault VRF 18-13
configuring for route reachability 18-6
configuring on an interface 18-4
default settings 18-4
description 18-1
example configuration 18-15
feature history (table) 18-16
guidelines 18-4
high availability 18-3
licensing requirements 18-3
limitations 18-4
prerequisites 18-3
track list 18-2
verifying configuration 18-15
virtualization support 18-3
Open Shortest Path First. See OSPF
Open Shortest Path First version 3. See OSPFv3
OSPF
area border router 4-4
AS border router 4-5
authentication 4-7
backup designated router 4-3
BFD 4-12
configuring area authentication 4-24
configuring a totally stubby area 4-32
configuring authentication 4-23
configuring authentication on an interface 4-25
configuring DR priority 4-22
configuring ECMP 4-19
configuring filter lists 4-28
configuring graceful restart 4-49
configuring load balancing 4-19
configuring MD5 authentication 4-24
configuring networks 4-20
configuring NSSA 4-32
configuring on an interface 4-20
configuring optional parameters on an interface 4-22
configuring redistribution 4-38
configuring route summarization 4-42
configuring simple password authentication 4-24
configuring stub areas 4-30
configuring stub route advertisements 4-44
configuring the hello interval 4-22
configuring virtual links 4-35
configuring with VRFs 4-52
creating an instance 4-17
dead interval 4-2
default settings 4-14
delete an instance 4-18
designated router 4-3
disable the feature 4-16
displaying statistics 4-55
enable the feature 4-15
example configuration 4-56
feature history (table) 4-57
graceful restart 4-11
guidelines 4-13
hello interval 4-2
hello packet 4-2
high availability 4-11
licensing requirements 4-13
limitations 4-13
link cost 4-6
link-state database 4-7
LSA 4-1
LSA flooding 4-6
LSA pacing 4-6
LSA types (table) 4-6
modifying default timers 4-46
multiple instances 4-12
neighbors 4-2
not-so-stubby area 4-9
NSSA 4-9
opaque LSAs 4-7
prerequisites 4-13
redistributed routes 4-40
restarting an instance 4-52
route redistribution
description 4-10
route summarization
description 4-10
shutting down an instance 4-22
SPF optimization 4-12
stub area 4-8
stub area (figure) 4-9
stub router advertisements
description 4-12
unicast RIB 4-7
verifying configuration 4-54
virtualization support 4-13
virtual link 4-9
virtual link (figure) 4-10
OSPFv2 (Open Shortest Path First Version 2)
description 5-1
OSPFv3
address families 5-9
adjacency 5-3
areas 5-5
BFD 5-13
comparison to OSPFv2 5-2
configuring ECMP 5-18
configuring filter lists 5-21
configuring graceful restart 5-37
configuring load balancing 5-18
configuring networks 5-18
configuring NSSA 5-24
configuring redistribution 5-30
configuring route summarization 5-33
configuring stub areas 5-23
configuring totally stubby areas 5-24
configuring virtual links 5-28
configuring with VRFs 5-39
creating an instance 5-16
default settings 5-14
description5-1to ??
displaying statistics 5-41
enabling the feature 5-15
example configuration 5-42
feature history (table) 5-43
guidelines 5-14
licensing requirements 5-13
limitations 5-14
link cost 5-7
link-state database 5-8
LSA flooding 5-7
LSA pacing 5-7
LSAs 5-6
LSA types (table) 5-6
MIBs 5-43
modifying default timers 5-35
multiple instances 5-13
neighbors 5-3
NSSA 5-10
prerequisites 5-13
redistributed routes 5-31
restarting an instance 5-38
RFC 5-2
route redistribution 5-11
route summarization 5-11
SPF optimization 5-13
unicast RIB 5-8
verifying configuration 5-41
virtualization support 5-13
virtual links 5-10
P
path length 1-4
path MTU discovery 3-10
prefix lists
configuring 14-6
description 14-2
Proxy ARP
configuring 2-12
description 2-5
R
redistiribution
description 1-6
redistribution 1-5
BGP 8-8
configuring for OSPF 4-38
configuring for OSPFv3 5-30
configuring in BGP 8-33
configuring in RIP 10-12
configuring on EIGRP 6-18
EIGRP 6-6
maximum limit for EIGRP 6-20
maximum limit for OSPF 4-40
maximum limit for OSPFv3 5-31
with route maps 14-5
reliability 1-4
Reverse ARP
description 2-4
limitations 2-4
RFC 2-4
RIB
RIP
clearing statistics 10-17
configuring a passive interface 10-11
configuring on an interface 10-8
configuring with VRFs 10-13
default settings 10-5
description 10-2
disable the feature 10-6
displaying statistics 10-17
enabling the feature 10-5
example configuration 10-18
feature history (table) 10-19
guidelines 10-5
high availability 10-4
licensing requirements 10-4
limitations 10-5
prerequisites 10-4
route filtering 10-3
tuning 10-16
verifying configuration 10-17
virtualization support 10-4
RIP authentication
configuring 10-9
description 10-2
RIP instance
creating 10-6
deleting 10-7
optional parameters 10-7
restarting 10-8
RIP load balancing
configuring 10-8
description 10-4
RIP route distribution
description 10-3
RIP route redistribution
configuring 10-12
RIP route summarization
configuring 10-11
description 10-3
RIP split horizon
configuring with poison reverse 10-11
description 10-2
route maps
configuring 14-12
configuring match parameters 14-13
configuring set parameters 14-16
description 14-2
example configuration 14-18
match criteria 14-3
redistribution 14-5
set changes 14-3
route metric
bandwidth 1-4
communication cost 1-4
delay 1-4
load 1-4
path length 1-4
reliability 1-4
Route Policy Manager
default settings 14-6
example configuration 14-18
guidelines 14-5
licensing requirements 14-5
limitations 14-5
prerequisite 14-5
route policy manager
description14-1to ??
verifying configuration 14-18
router advertisement message 3-13
route redistribution
OSPFv3 5-11
route reflector
configuring 8-27
description 8-5
router ID
description 1-5
routes, estimating memory requirements 13-10
route summarization
configuring 4-42
configuring on EIGRP 6-18
EIGRP 6-6
RIP 10-3
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
distance vector 1-9
link-state 1-9
next hop 1-2
virtualization 1-10
S
static routes
BFD 11-3
description 1-8
virtualization support 11-3
with ARP 2-3
static routing
administrative distance 11-2
configuring 11-5
configuring with VRFs 11-6
default settings 11-4
description 11-1
example configuration 11-8
feature history (table) 11-8
guidelines 11-4
licensing requirements 11-3
limitations 11-4
prerequisites 11-4
verifying configuration 11-7
stub routing
description 1-7
U
uRIB
clearing routes 13-11
description 13-1
displaying 13-8
displaying (example) 13-8
feature history (table) 13-12
guidelines 13-3
Layer 3 consistency checker 13-2
licensing requirements 13-3
limitations 13-3
verifying 13-11
virtualization support 13-3
V
virtualization
layer 3 (figure) 1-10
Virtual Router Redundancy Protocol. See VRRP
VRF
assigning an interface to a VRF 12-9
configuring routing parameters 12-10
creating 12-7
default settings 12-7
deleting 12-8
description 12-2
example configuration 12-14
guidelines 12-6
licensing requirements 12-6
limitations 12-6
prerequisites 12-6
setting the routing context 12-13
setting the scope 12-13
verifying configuration 12-14
vrf
feature history (table) 12-16
VRF-aware services
configuring 12-12
description 12-3
VRF filtering
description 12-5
example configuration 12-13
VRF-Lite
description 12-3
guidelines 12-6
limitations 12-6
VRF reachability
description 12-4
example configuration 12-13
VRRP
benefits 17-3
configuring time intervals for advertisement packets 17-12
default settings 17-6
disabling the feature 17-8
displaying statistics 17-18
enabling the feature 17-7
example configuration 17-18
feature history (table) 17-19
guidelines 17-6
licensing requirements 17-6
limitations 17-6
verifying configuration 17-17
virtualization support 17-6
VRRP advertisements
description 17-5
VRRP authentication
configuring 17-11
description 17-5
VRRP groups
configuring 17-8
description 17-3
VRRP priority
configuring 17-9
description 17-4
disabling preemption 17-14
preemption 17-4
VRRP tracking
configuring 17-15
description 17-5
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