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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
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
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
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
high availability 11-10
iBGP 11-3
ISSU 11-11
licensing requirements 10-7, 11-11
modifying next-hop address 11-22
MP-BGP 11-9
next-hop address tracking 11-8
path selection 10-4
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
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
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
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
DNS 4-7
EIGRP 8-31
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
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
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
F
FIB
clearing routes 15-10
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
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
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
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
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 2-15
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
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
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 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
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
OSPFv3 7-43
MP-BGP 11-9
configuring 11-35
Multiprotocol BGP
N
ND
configuring 3-20
description 3-13
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
area border router 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
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
LSA types (table) 6-6
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
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
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
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
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
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
distance vector 1-9
link-state 1-9
next hop 1-2
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
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
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