Table Of Contents
A - B - C - D - E - F - G - H - I - L - M - N - O - P - R - S - U - V -
Index
A
ABR 5-5
address formats
IPv4 2-2
IPv6 3-2
IPv6 (table) 3-2
address resolution protocol. See ARP
administrative distance
description 1-6
static routing 12-2
aggregatable global addresses. See IPv6
areas 6-5
ARP
caching 2-3
configuring gratuitous ARP 2-11
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
ASBR 5-5
AS confederations
configuring 10-22
description 10-4
AS numbers 1-5
AS-path lists
configuring 15-7
description 15-3
autonomous system
description 1-5
numbers (table) 1-5
B
bandwidth 1-4
BDR 5-3
BGP 9-6
administrative distances (table) 9-2
clearing neighbors 9-14
configuration modes 9-7
configuring dynamic capability 10-26
configuring maximum prefixes 10-25
configuring prefix peering 10-18
configuring route dampening 10-25
configuring with VRFs 10-33
description9-1to9-6, 10-1to 10-9
disable the feature 9-10
displaying statistics 9-18, 10-35
eBGP 10-3
enable the feature 9-9
example configuration 9-19
feature history (table) 9-20
high availability 10-8
iBGP 10-3
ISSU 10-9
licensing requirements 9-6, 10-9
MBGP 10-8
modifying next-hop address 10-20
path selection 9-3
router ID 9-3
speakers 9-1
tuning 10-28
unicast RIB 9-6
verifying configuration 9-17, 10-34
virtualization support 9-6, 10-9
BGP aggregate addresses
configuring 10-26
BGP AS-path lists
configuring 15-7
description 15-3
BGP authentication
configuring 10-19
description 10-2
BGP autonomous systems
description 9-2
BGP capabilities negotiation
description 10-6
disabling 10-21
BGP community lists
configuring 15-8
description 15-3
BGP graceful restart
configuring 10-31
description 10-8
BGP instance
creating 9-10
deleting 9-11
restarting 9-12
BGP load balancing
configuring 10-25
BGP loadsharing
description 10-6
BGP multipath. See BGP loadsharing
BGP peers
authentication (note) 10-2
configuring 9-12
description 9-3
BGP route aggregation
description 10-7
BGP route dampening 10-6
BGP route redistribution
configuring 10-27
description 10-7
BGP sessions
reset options 10-3
resetting 10-20
route policies 10-3
BGP templates
configuring peer-policy templates 10-13
configuring peer templates 10-16
configuring session templates 10-11
description 10-2
peer-policy templates 10-2
peer-session templates 10-2
peer template 10-2
Border Gateway Protocol. See BGP
C
CDP 3-12
communication cost 1-4
community lists
configuring 15-8
description 15-3
comparing
link-state and distance vector routing algorithms 1-9
configuration limits
description (table) 2-1
D
default gateway
description 1-8
default settings
DNS 4-7
EIGRP 7-25
GLBP 17-16
HSRP 18-16
IP 2-14
IPv6 3-24
IS-IS 8-28
object tracking 20-7
OSPF 5-43
OSPFv3 6-38
policy-based routing 16-7
RIP 11-18
Route Policy Manager 15-14
static routing 12-7
VRF 14-13
VRRP 19-20
delay 1-4
distance vector routing algorithms 1-9
distribution
RIP 11-3
DNS 3-12
configuring clients 4-3
configuring with VRFs 4-5
default settings 4-7
description 4-1
example configuration 4-7
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 i-v
updates i-vi
DR 5-3
E
eBGP
configuring 10-21
configuring AS confederations 10-22
configuring multihop 10-21
description 10-3
disabling fast external failover 10-22
disabling single-hop checking 10-21
eBGP AS confederations. See AS confederations
ECMP. See equal cost multipath
EIGRP
authentication 7-4
configuring a summary address 7-15
configuring authentication 7-12
configuring graceful restart 7-18
configuring hello interval 7-20
configuring load balancing 7-17
configuring route redistribution 7-16
configuring stub routing 7-15
configuring with VRFs 7-22
creating an instance 7-9
default settings 7-25
deleting an instance 7-11
disabling an instance 7-12
disabling split horizon 7-20
disabling the feature 7-9
displaying statistics 7-24
DUAL algorithm 7-2
ECMP 7-6
enabling the feature 7-8
example configuration 7-24
external route metrics 7-4
feature history (table) 7-26
graceful restart 7-6
guidelines 7-8
high availability 7-6
hold time 7-2
internal route metrics 7-3
licensing requirements 7-7
limitations 7-8
load balancing 7-6
neighbor discovery 7-2
prerequisites 7-7
restarting an instance 7-11
route redistribution 7-5
route summarization 7-5
route updates 7-3
shutting down on an interface 7-12
split horizon 7-6
stub routers 7-5
tuning 7-20
unicast RIB 7-4
verifying configuration 7-23
virtualization support 7-6
equal cost multipath 1-6
F
FIB
clearing routes 13-8
displaying 13-4
feature history (table) 13-10
guidelines 13-3
licensing requirements 13-2
limitations 13-3
verifying 13-9
virtualization support 13-2
VRFs 1-12
forwarding
adjacency manager 1-11
FIB 1-11
unicast forwarding distribution module 1-11
forwarding information base. See FIB
G
Gateway Load Balancing Protocol. See GLBP
GLBP
configuring authentication 17-8
configuring load balancing 17-9
configuring weighting and tracking 17-10
customizing 17-12
default settings 17-16
description 17-1
enabling a group 17-13
enabling the feature 17-7
example configuration 17-15
verifying configuration 17-15
graceful restart
BGP 10-8
configuring in BGP 10-31
configuring in EIGRP 7-18
configuring in IS-IS 8-20
configuring in OSPF 5-38
configuring in OSPFv3 6-33
EIGRP 7-6
OSPF 5-11
gratuitous ARP
configuring 2-11
description 2-5
H
high availability
BGP 10-8
DNS 4-2
EIGRP 7-6
HSRP 18-5
IS-IS 8-5
object tracking 20-2
OSPF 5-11
RIP 11-4
VRRP 19-5
Hot Standby Router Protocol. See HSRP
HSRP
addressing 18-4
configuring a group 18-7
customizing 18-14
default settings 18-16
disabling the feature 18-7
enabling the feature 18-7
example configuration 18-16
guidelines 18-6
high availability 18-5
licensing requirements 18-6
limitations 18-6
load sharing 18-4
messages 18-4
prerequisites 18-6
standby router 18-2
verifying configuration 18-15
virtualization support 18-6
HSRP authentication
configuring 18-10
description 18-3
HSRP object tracking
configuring 18-12
description 18-5
HSRP versions
configuring 18-9
description 18-3
HSRP virtual MAC address
configuring 18-9
description 18-2
I
iBGP
configuring router reflector 10-23
description 10-3
iBGP router reflector. See router reflector
ICMP
description 2-5
with local proxy ARP (note) 2-6
ICMPv6 3-12
packet header format (figure) 3-13
Intermediate System-to-Intermediate System. See IS-IS
Internet Control Message Protocol. See ICMP
IP
addresses 2-2
configuring addresses 2-7
configuring secondary addresses 2-8
default settings 2-14
description2-1to2-6, ??to 13-2
enabling IDS checks 2-12
enabling packet verification 2-12
example configuration 2-14
feature history (table) 2-15
guidelines 2-6
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 2-14
virtualization support 2-6
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
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
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 8-8
clearing statistics 8-27
configuration modes 8-7
configuring dynamic host exchange 8-16
configuring on an interface 8-11
configuring with VRFs 8-21
default settings 8-28
disabling the feature 8-8
displaying statistics 8-27
enabling the feature 8-8
example configuration 8-27
guidelines 8-6
high availability 8-5
licensing requirements 8-6
limitations 8-6
LSPs 8-2
NET 8-3
prerequisites 8-6
system ID 8-3
tuning 8-24
verifying configuration 8-26
virtualization support 8-5
IS-IS areas
description 8-2
IS-IS authentication
configuring in an area 8-13
configuring on an interface 8-14
description 8-3
IS-IS designated intermediate system 8-3
configuring 8-16
IS-IS graceful restart
configuring 8-20
description 8-5
IS-IS instances
configuring optional parameters 8-10
creating 8-9
deleting 8-10
multiple instance support 8-6
restarting 8-11
IS-IS load balancing
configuring 8-10
description 8-5
IS-IS mesh group
configuring 8-15
IS-IS mess group
description 8-4
IS-IS overload bit
configuring 8-16
description 8-4
IS-IS route redistribution
configuring 8-18
description 8-5
IS-IS route summarization
configuring 8-17
description 8-4
ISSU
BGP 10-9
L
Layer 3 consistency checker
description 13-2
triggering 13-7
licensing requirements 9-6
BGP 10-9
DNS 4-2
EIGRP 7-7
FIB 13-2
HSRP 18-6
IP 2-6
IPv6 3-18
IS-IS 8-6
object tracking 20-2
OSPF 5-13
OSPFv3 6-12
policy-based routing 16-3
RIP 11-4
Route Policy Manager 15-4
static routing 12-3
uRIB 13-2
VRF 14-5
VRRP 19-6
limits
description (table) 2-1
link-state advertisements 5-1
link-state routing algorithms 1-9
load 1-4
load balancing 1-6
Local Proxy ARP
configuring 2-11
description 2-5
LSAs 6-5
for OSPFv3 (table) 6-6
M
MBGP 10-8
MIBs
OSPF 5-44
OSPFv3 6-39
N
ND
configuring 3-20
description 3-13
neighbor redirect message 3-16
new and changed features (table) i-i
next hop 1-2
NSSA 5-10
configuring 5-27
description for OSPFv3 6-9
O
object tracking
configuring for a nonDefault VRF 20-5
configuring for GLBP 17-10
configuring for route reachability 20-4
configuring on an interface 20-3
default settings 20-7
description 20-1
example configuration 20-7
guidelines 20-3
high availability 20-2
licensing requirements 20-2
limitations 20-3
prerequisites 20-3
verifying configuration 20-7
virtualization support 20-2
Open Shortest Path First. See OSPF
Open Shortest Path First version 3. See OSPFv3
OSPF
area border router 5-5
AS border router 5-5
authentication 5-8
backup designated router 5-3
configuring area authentication 5-20
configuring a totally stubby area 5-26
configuring authentication 5-19
configuring authentication on an interface 5-21
configuring DR priority 5-19
configuring ECMP 5-17
configuring filter lists 5-23
configuring graceful restart 5-38
configuring load balancing 5-17
configuring MD5 authentication 5-21
configuring networks 5-17
configuring NSSA 5-27
configuring on an interface 5-17
configuring optional parameters on an interface 5-19
configuring redistribution 5-31
configuring route summarization 5-33
configuring simple password authentication 5-21
configuring stub areas 5-25
configuring stub route advertisements 5-34
configuring the hello interval 5-19
configuring virtual links 5-29
configuring with VRFs 5-40
creating an instance 5-15
dead interval 5-2
default settings 5-43
delete an instance 5-16
designated router 5-3
disable the feature 5-15
displaying statistics 5-43
enable the feature 5-14
example configuration 5-43
graceful restart 5-11
guidelines 5-13
hello interval 5-2
hello packet 5-2
high availability 5-11
licensing requirements 5-13
limitations 5-13
link cost 5-6
link-state database 5-7
LSA 5-1
LSA flooding 5-7
LSA pacing 5-7
LSA types (table) 5-6
MIBs 5-44
modifying default timers 5-35
multiple instances 5-12
neighbors 5-2
not-so-stubby area 5-10
NSSA 5-10
opaque LSAs 5-7
prerequisites 5-13
restarting an instance 5-39
route redistribution
description 5-10
route summarization
description 5-11
shutting down an instance 5-19
SPF optimization 5-12
stub area 5-9
stub area (figure) 5-9
stub router advertisements
description 5-12
unicast RIB 5-8
verifying configuration 5-42
virtualization support 5-13
virtual link 5-10
virtual link (figure) 5-10
OSPFv2 (Open Shortest Path First Version 2)
description 6-1
OSPFv3
address families 6-8
adjacency 6-3
areas 6-5
authentication 6-8
comparison to OSPFv2 6-2
configuring ECMP 6-16
configuring filter lists 6-19
configuring graceful restart 6-33
configuring load balancing 6-16
configuring networks 6-16
configuring NSSA 6-23
configuring redistribution 6-27
configuring route summarization 6-29
configuring stub areas 6-21
configuring totally stubby areas 6-22
configuring virtual links 6-25
configuring with VRFs 6-35
creating an instance 6-14
default settings 6-38
disabling the feature 6-14
displaying statistics 6-37
enabling the feature 6-13
example configuration 6-38
guidelines 6-13
licensing requirements 6-12
limitations 6-13
link cost 6-6
link-state database 6-7
LSA flooding 6-6
LSA pacing 6-6
LSAs 6-5
LSA types (table) 6-6
MIBs 6-39
modifying default timers 6-30
multiple instances 6-11
neighbors 6-3
NSSA 6-9
prerequisites 6-12
restarting an instance 6-34
RFC 6-2
route redistribution 6-10
route summarization 6-10
SPF optimization 6-12
unicast RIB 6-7
verifying configuration 6-37
virtualization support 6-12
virtual links 6-9
P
path length 1-4
path MTU discovery 3-12
policy-based routing
configuring a route policy 16-5
configuring set parameters 16-6
default settings 16-7
description 16-1
disabling 16-4
enabling 16-4
example configuration 16-7
guidelines 16-3
licensing requirements 16-3
limitations 16-3
prerequisites 16-3
route maps 16-2
set criteria 16-2
verifying configuration 16-7
policy route maps
description 16-2
prefix lists
configuring 15-5
description 15-2
Proxy ARP
configuring 2-10
description 2-5
R
Really Simple Syndication. See RSS
redistiribution
description 1-6
redistribution 1-5
BGP 10-7
configuring 5-31
configuring for OSPFv3 6-27
configuring in BGP 10-27
configuring in IS-IS 8-18
configuring in RIP 11-11
configuring on EIGRP 7-16
EIGRP 7-5
IS-IS 8-5
with route maps 15-4
related documents i-v
reliability 1-4
Reverse ARP
description 2-4
limitations 2-4
RFC 2-4
RIB
RIP
clearing statistics 11-17
configuring a passive interface 11-10
configuring on an interface 11-8
configuring with VRFs 11-13
default settings 11-18
description 11-2
disable the feature 11-6
displaying statistics 11-17
enabling the feature 11-5
example configuration 11-18
guidelines 11-5
high availability 11-4
licensing requirements 11-4
limitations 11-5
prerequisites 11-4
route filtering 11-3
tuning 11-15
verifying configuration 11-17
versions (note) 11-2
virtualization support 11-4
RIP authentication
configuring 11-9
description 11-2
RIP instance
creating 11-6
deleting 11-7
optional parameters 11-7
restarting 11-8
RIP load balancing
configuring 11-7
description 11-4
RIP route distribution
description 11-3
RIP route redistribution
configuring 11-11
RIP route summarization
configuring 11-11
description 11-3
RIP split horizon
configuring with poison reverse 11-11
description 11-2
route maps
configuring 15-9
configuring match parameters 15-10
configuring set parameters 15-12
description 15-2
example configuration 15-14
for policy -based routing 16-2
match criteria 15-2
redistribution 15-4
set changes 15-3
verifying 15-14
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 16-5
configuring match parameters
policy-based routing
configuring match parameters 1
configuring set parameters 16-6
description 16-1
example configuration 16-7
Route Policy Manager
default settings 15-14
example configuration 15-14
guidelines 15-4
licensing requirements 15-4
limitations 15-4
prerequisite 15-4
verifying configuration 15-14
route policy manager
router advertisement message 3-15
route redistribution
OSPFv3 6-10
router ID
description 1-5
router reflector
configuring 10-23
description 10-5
route summarization
configuring 5-33
configuring in IS-IS 8-17
configuring on EIGRP 7-15
EIGRP 7-5
ISIS 8-4
RIP 11-3
route table
description 1-2
routing algorithms
link-state 1-9
Routing Information Protocol. See RIP
routing metrics
description 1-2
routing protocols
administrative distance 1-6
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 1-9
RSS
documentation feed i-vi
S
service
requests i-vi
static routes
description 1-8
virtualization support 12-3
with ARP 2-3
static routing
administrative distance 12-2
configuring 12-4
configuring with VRFs 12-5
default settings 12-7
description 12-1
example configuration 12-6
guidelines 12-3
licensing requirements 12-3
limitations 12-3
prerequisites 12-3
verifying configuration 12-6
stub routing
description 1-7
U
uRIB
clearing routes 13-9
description 13-1
displaying 13-6
displaying (example) 13-6
feature history (table) 13-10
guidelines 13-3
Layer 3 consistency checker 13-2
licensing requirements 13-2
limitations 13-3
verifying 13-9
virtualization support 13-2
V
virtualization
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 14-13
deleting 14-7
description 14-2
example configuration 14-12
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 14-12
VRF-aware services
configuring 14-10
description 14-3
VRF filtering
description 14-4
example configuration 14-11
VRF reachability
description 14-4
example configuration 14-11
VRRP
benefits 19-3
clearing statistics 19-19
configuring time intervals for advertisement packets 19-12
default settings 19-20
disabling the feature 19-7
displaying statistics 19-19
enabling the feature 19-6
example configuration 19-19
guidelines 19-6
high availability 19-5
licensing requirements 19-6
limitations 19-6
verifying configuration 19-18
virtualization support 19-5
VRRP advertisements
description 19-5
VRRP authentication
configuring 19-10
description 19-5
VRRP groups
configuring 19-7
description 19-3
VRRP priority
configuring 19-8
description 19-4
disabling preemption 19-14
preemption 19-4
VRRP tracking
configuring 19-16
description 19-5