8/7/2019 5 EIGRP

1/59

1

5Advanced Distance Vector Protocol

EIGRP ( Dual) EIGRP ( stub routing,

summarization)

EIGRP EIGRP

EIGRP Interior Gateway Routing Protocol (IGRP) EIGRP EIGRP EIGRP FutureTech R&D EIGRP

EIGRP

49147 CNM

8/7/2019 5 EIGRP

2/59

2

5Advanced Distance Vector Protocol

Enhanced Interior Gateway Routing Protocol (EIGRP) distance vector link staterouting protocols distance vector link stateprotocols

EIGRP

EIGRP EIGRP

EIGRP up-to-the-minute

www.sybex.com/go/CiscoProGuidetoInternetworking orwww.lammle.com.

EIGRP EIGRP

:

8/7/2019 5 EIGRP

3/59

3

Variable-length subnet masking (VLSM)

ProtocolDependant Modules (PDMs)

EIGRP:

- load balancing stub router WAN

EIGRP EIGRP EIGRP

EIGRP

EIGRP Interior Gateway Routing Protocol (IGRP),EIGRP

topolog EIGRP dynamic neighbor EIGRP distance vector EIGRP Diffused standard distance vector protocol DUAL EIGRP

8/7/2019 5 EIGRP

4/59

4

loop-free topology EIGRP

Fast Convergence EIGRP

EIGRP

VLSM EIGRP subnet mask subnet mask EIGRP discontiguous VLSM

Partial Updates RIP IGRP EIGRP partial triggered updates triggeredupdate partial updates EIGRP partial updates link stateprotocols link state routers link state routers

Multiple Network-Layer Protocol Support EIGRP IP, AppleTalk Internet Packet Exchange (IPX) Protocol Dependent Modules (PDMs) EIGRP

8/7/2019 5 EIGRP

5/59

8/7/2019 5 EIGRP

6/59

8/7/2019 5 EIGRP

7/59

7

5.1

5.1 FutureTech R&D EIGRP Routing

5.1 core layerrouter

EIGRP specificpoints

EIGRP (

called cost) EIGRP

8/7/2019 5 EIGRP

8/59

8

loop-free paths

Advertised Distance (AD) next hop

AD

Feasible Distance (FD)

Best Route FD loop-free path

Feasible Successor loop-free path feasible successor AD feasible successor FD successor route

5.2 distribution routers core routers 5.2

8/7/2019 5 EIGRP

9/59

9

5.2 EIGRP

FutureTech RnD

FastEthernet interface 28160 EIGRP EIGRP

RnD1 10.10.40.0/24 5.2 RnD4 RnD1 RnD4 Core1, Core2 RnD4 RnD4

8/7/2019 5 EIGRP

10/59

10

10.10.40.0/24?

RnD4 RnD1

AD FD Route Costs RnD4 Core2, Core1

RnD2 ()1.RnD4 10 RnD4

Core2 advertiseddistance (AD)

2. Core2 RnD4 10 FD 203.Core2 FD Core1 AD Core1 204.Core1 Core2

Core 2 10 Core1 FD 305.Core 1

FD 30 RnD1 RnD2 AD 30

6.RnD1 AD Core1 FD 40

7.RnD2 Core1 AD 8 FD 38

8/7/2019 5 EIGRP

11/59

11

8.RnD2 AD 38

9.RnD2 RnD2 R n D 2 FD 48

10. RnD1 10.10.40.0/24 FD FD

Feasible distance (FD)

RnD1

10.10.40.0/24 RnD1

Core1 FD

Core1feasible successor

RnD2 FD successor RnD2 feasible successor

successor : AD FD successor feasible successor

AD RnD2 38 FD successor 40 RnD2 qualifies feasible successor

Feasible successor

8/7/2019 5 EIGRP

12/59

12

successor feasible successor

EIGRP Core1 feasible successor EIGRP feasible successor feasible successor network loop

Feasible successor router loop-freeroute

Message Types EIGRP

EIGRP EIGRP

Hello Hello packets multicasts Hello Hello

Update Update

:Feasible Successors

Feasible successor AD FD successor route EIGRP

RnD2 AD FD

8/7/2019 5 EIGRP

13/59

13

unicast

Query

feasible success feasible successor multicasts retransmitted unicast RTP

Replay unicast

ACK acknowledgment (ACK) ACK unicast hello packets nonzero acknowledgmentnumber

Multicast Ethernet hello packets EIGRP single multicast hello packet hello acknowledged RTP multicast

EIGRP

8/7/2019 5 EIGRP

14/59

14

FutureTechsR&D

Atlanta Moves In Atlanta (RnD5) 5.3 RnD RnD2

5.3

1. (RnD5) hello interfaces EIGRP

8/7/2019 5 EIGRP

15/59

15

2. hello ( Rnd2)

RnD2 RnD5 hello bit

3. 2 RnD5 RnD2 ACK

4. RnD5 RnD2 core 1 RnD5 hello5. RnD5 R n D 2 RnD2 core 1

6. RnD2 core 1 ACK RnD5

Tables

EIGRP EIGRP OSPF, , ,

Neighbor Tableadjacent routers reachability RTP

Topology Table topology topology

Routing Table

8/7/2019 5 EIGRP

16/59

16

EIGRP

EIGRP() EIGRP Hello packet Hello packets adjacent neighbor neighbors Hello packet

Adjacency PDM

hello packet

hello packet

EIGRP reliable transport protocol (RTP)

, sequence numbers queued packets, round-trip timers

EIGRP out-of-order packet

8/7/2019 5 EIGRP

17/59

17

roundtrip timers

Topology

FutureTech ( EIGRP) topology Topology

EIGRP loops RnD5 RnD2 RnD5

topology : R n D 2

distance vector suboptimal

topology R n D 1 ( 5.2) RnD2 Core1 (AD) AD (RnD2 Core1) (FD) FD

8/7/2019 5 EIGRP

18/59

18

(AD)

topology

1. 2. 5.2 RnD2 RnD2 Core1 RnD2 Core1 RnD2 Core1 Core2 Core2 Core1 Core1 RnD1 RnD2

Topology:

recomputing recomputing

feasible successor feasible successor recomputation feasible successor loop-free path

Feasiblesuccessor recomputation; recomputation :

8/7/2019 5 EIGRP

19/59

19

topology loop free

Stuck-in-active (SIA) SIA ( 3 )

EIGRP 3 neighbor table,topology table routing table neighbor table EIGRP neighbor table EIGRP neighbor table topology DUAL algorithm costEIGRP delay bandwidth cost 2 FD(feasibledistance) AD (advertise distance) 2 topology table FD cost

8/7/2019 5 EIGRP

20/59

20

AD cost next hop neighbor

1

AD FD EIGRP topologytable EIGRP routing table

FD cost

EIGRP EIGRP RnD1, RnD2, RnD3, RnD4

Core1 Core2Autonomous System Numbers

Autonomous System Number (Share)

AS

Internet Assigned Numbers Authority (IANA) AS AS 1 - 65,535

64,512 65,53 IP Address

Stub Transit Autonomous System Autonomous 2 BGP Stub Stub AS AS

8/7/2019 5 EIGRP

21/59

21

IGP ( RIP, IGRP EIGRP) ( Router BGP Router BGP AS

Router BGP AS Transit AS Autonomous AS AS AS 30 AS 10 AS 50 Non-Transit AS AS AS AS AS

EIGRP RnD1 IP address EIGRP 5.4 EIGRP

Show ip interface brief RnD1RnD1#sh ip interface briefInterface IP-Address OK? Method Status Protocol

8/7/2019 5 EIGRP

22/59

22

FastEthernet0/0 10.0.0.6 YES manual up upFastEthernet0/1 10.1.0.1 YES manual up upSeria10/0/0 unassigned YES unset administratively down down

Seria10/1/0 unassigned YES unset administratively down downLoopback0 10.1.1.1 YES manual up up

EIGRP RnD1RnD1 (config)#router eigrp 65000RnD1 (config-router)#network 10.1.1.0RnD1 (config-router)#network 10.1.0.0RnD1 (config-router)#network 10.0.0.0 Network RnD1 running configurationRnD1#sh running-configBuilding configuration . . .Current configuration : 779 bytes!version 12.4

Enabling EIGRP 161service timestamps debug datetime msecservice timestamps log datetime msecno service password-encryption!hostname Router1[output cut]

router eigrp 65000network 10.0.0.0auto-summary

Interface Routing EIGRP interface

8/7/2019 5 EIGRP

23/59

23

RnD1 (config)#router eigrp 65000RnD1 (config-router)#network 10.0.0.4 0.0.0.3RnD1 (config-router)#network 10.1.0.0 0.0.0.3

RnD1 (config-router)#network 10.1.1.0 0.0.0.255RnD1 (config-router)#no auto-summary

IP-EIGRP(Default-IP-Routing-Table:65000): Neighbor 10.0.0.6 not oncommon subnetfor FastEthernet0/1IP-EIGRP(Default-IP-Routing-Table:65000): Neighbor 10.1.0.1 not oncommon subnetfor FastEthernet0/0 interface fa0/1,fa0/2 ip addressCore1(config)#interfacerangefa0/1 - 2

Core1(config-if-range)#no switchport

Core1(config)#interfacefa0/1

Core1(config-if)#ip address 10.0.0.5255.255.255.252

Core1(config-if)#no shut

Core1(config-if)#interfacefa0/2

Core1(config-if)#ip address 10.0.0.9255.255.255.252

Core1(config-if)#no shut

EIGRP Switch Core1 interface fa0/20 ip address EIGRP AS 65000 network

auto-summaryCore1(config-if)#interface fa0/20Core1(config-if)#no switchport

8/7/2019 5 EIGRP

24/59

24

Core1(config-if)#ip address 10.0.0.1 255.255.255.252Core1(config-if)#no shutCore1(config)#ip routing

Core1(config)#router eigrp 65000Core1(config-router)#network 10.0.0.0 255.255.255.252Core1(config-router)#network 10.0.0.4 255.255.255.252Core1(config-router)#network 10.0.0.8 255.255.255.252Core1(config-router)#no auto-summary vlan interface accessCore1(config)#int range fa0/3 - 4Core1(config-if-range)#switchportCore1(config-if-range)#switchport access vlan 3% Access VLAN does not exist. Creating vlan 3

Core2 interface fa0/20 fa0/3-4Core2(config)#interface range fa0/3 - 4

Core2(config-if-range)#no switchportCore2(config)#interface fa0/3Core2(config-if)#ip address 10.0.0.13 255.255.255.252Core2(config-if)#no shutCore2(config-if)#int fa0/4Core2(config-if)#ip add 10.0.0.17 255.255.255.252Core2(config-if)#no shutCore2(config-if)#interface fa0/20Core2(config-if)#no switchportCore2(config-if)#ip address 10.0.0.2 255.255.255.252Core2(config-if)#no shut EIGRP AS 65000 auto-summaryCore2(config)#router eigrp 65000

8/7/2019 5 EIGRP

25/59

25

Core2(config-router)#network 10.0.0.0 0.0.0.3Core2(config-router)#network 10.0.0.12 0.0.0.3Core2(config-router)#network 10.0.0.16 255.255.255.252

Core1(config-router)#no auto-summary interface fa0/1,fa0/2 vlan 2Core2(config)#interface range fa0/1 - 2Core2(config-if-range)#switchport access vlan 2% Access VLAN does not exist. Creating vlan 2

3 RnD2, RnD3, RnD4RnD2(config)#interface fa0/0RnD2(config-if)#ip address 10.0.0.10 255.255.255.252RnD2(config-if)#no shutRnD2(config)#interface fa0/1RnD2(config-if)#ip address 10.1.0.2 255.255.255.252RnD2(config-if)#no shutRnD2(config-if)#interface lo0RnD2(config-if)#ip address 10.1.2.1 255.255.255.0RnD2(config-if)#no shut

RnD2(config-router)#no autoRnD2(config-router)#network 10.0.0.8 0.0.0.3RnD2(config-router)#network 10.1.0.0 0.0.0.3RnD2(config-router)#network 10.1.2.0 0.0.0.255RnD2(config-router)#no auto-summaryRnD3(config)#interface fa0/1RnD3(config-if)#ip address 10.0.0.14 255.255.255.252RnD3(config-if)#no shutRnD3(config-if)#interface fa0/0Enabling EIGRP 165RnD3(config-if)#ip address 10.2.0.1 255.255.255.252RnD3(config-if)#no shutRnD3(config-if)#interface l00

8/7/2019 5 EIGRP

26/59

26

RnD3(config-if)#ip address 10.2.1.1 255.255.255.0RnD3(config-if)#no shutRnD3(config)#router eigrp 65000

RnD3(config-router)#network 10.0.0.12 0.0.0.3RnD3(config-router)#network 10.2.0.0 0.0.0.3RnD3(config-router)#network 10.2.1.0 0.0.0.255RnD3(config-router)#no auto-summaryRnD4(config)#interface fa0/1RnD4(config-if)#ip address 10.0.0.18 255.255.255.252RnD4(config-if)#no shutRnD4(config-if)#interface fa0/0RnD4(config-if)#ip address 10.2.0.2 255.255.255.252RnD4(config-if)#no shutRnD4(config-if)#interface l00RnD4(config-if)#ip address 10.2.2.1 255.255.255.0RnD4(config-if)#no shutRnD4(config)#router eigrp 65000RnD4(config-router)#network 10.2.0.0 0.0.0.3

RnD4(config-router)#network 10.0.0.18 0.0.0.3RnD4(config-router)#network 10.2.2.0 0.0.0.255RnD4(config-router)#no auto-summary RnD4 11 network 10.0.0.12/30 RnD4 2 metric RnD4 cost RnD4#sh ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static route

8/7/2019 5 EIGRP

27/59

27

o - ODR, P - periodic downloaded static routeGateway of last resort is not set10.0.0.0/8 is variably subnetted, 11 subnets, 2 masks

D 10.0.0.8/30 [90/33280] via 10.0.0.17, 00:00:38, FastEthernet0/1D 10.0.0.12/30 [90/30720] via 10.2.0.1, 00:00:38, FastEthernet0/0166 Chapter 5 n Advanced Distance Vector Protocols[90/30720] via 10.0.0.17, 00:00:38, FastEthernet0/1C 10.2.0.0/30 is directly connected, FastEthernet0/0D 10.2.1.0/24 [90/156160] via 10.2.0.1, 00:00:38, FastEthernet0/0D 10.1.2.0/24 [90/161280] via 10.0.0.17, 00:00:38, FastEthernet0/1C 10.2.2.0/24 is directly connected, Loopback0D 10.1.1.0/24 [90/161280] via 10.0.0.17, 00:00:39, FastEthernet0/1D 10.0.0.0/30 [90/30720] via 10.0.0.17, 00:00:39, FastEthernet0/1D 10.1.0.0/30 [90/35840] via 10.0.0.17, 00:00:39, FastEthernet0/1D 10.0.0.4/30 [90/33280] via 10.0.0.17, 00:00:39, FastEthernet0/1C 10.0.0.16/30 is directly connected, FastEthernet0/1

EIGRPEIGRP

EIGRP

metric

route summarization

stub router EIGRP

CPU

8/7/2019 5 EIGRP

28/59

28

bandwidth

Metric EIGRP Cost ( Composit Metric) EIGRP

Cost IGRP 256 Cost Metric EIGRP

2 Bandwidth

Deley delay

3 ReliabilityLoad Maximum transmission unit (MTU) MTU

Metric EIGRPEIGRP Cost 5

K K 5

K1=K3=1 K2=K4=K5=0 K1 Bandwidth(BW), K2 Load,K3 Delay , K4 Reliability K5 MTU K5=0

8/7/2019 5 EIGRP

29/59

29

Metric = K1 * Bandwidth + [(K2 * Bandwidth) / (256-load)] + K3 *Delay K2=0 K1=K3=1

Metric = 1*Bandwidth + [(0 * Bandwidth) / (256-load)] + 1 * DelayMetric = bandwidth + delay K5 0 Metric = metric * [K5 / (reliability + K4)]

K EIGRP Hello-packet K

K

( K1 K3

) K

EIGRP

EIGRP

256

8/7/2019 5 EIGRP

30/59

30

EIGRP

107 256

Default Routing

EIGRP

EIGRP EIGRP EIGRP

EIGRP

EIGRP

8/7/2019 5 EIGRP

31/59

31

5.5 RnDEdge 192.168.10.0/24 RnDEdge 192.1 192.168.10.0

5.5 Default-Network Command

RnD2 RnDEdge EIGRP RnDEdge RnDEdge RnD2, EIGRP 192.168.10.0;- RnD2 RnDEdge 192.168.10.0

8/7/2019 5 EIGRP

32/59

32

, ()

IOS

, EIGRP Interior Gateway Routing Protocol (IGRP) routing information protocol (RIP) 0.0.0.0.0.0.0.0 , EIGRP 0.0.0.0.0.0.0.0 , 0.0.0.0 EIGRP, 0.0.0.0. 0.0.0.0

( 0.0.0.0 0.0.0.0 )

Summary Routes

EIGRP, , subnet mask

classful mask classful classful

8/7/2019 5 EIGRP

33/59

33

EIGRP EIGRP:

subnet subnet

(Subnet) Subnet Subnet

8/7/2019 5 EIGRP

34/59

34

subnet mask mask 2n n subnet mask

subnet mask 3 subnet mask 8 subnet (23 = 8)

172.16.0.0 /24 subnet subnet 172.16.16.0/24 172.16.23.0/24 mask 172.16.16.0/21, /24 /21 3 ; 23 = 8 subnet

Mask , ip address

mask

subnet mask

IOS EIGRP

Automatic Summarization

EIGRP EIGRP

8/7/2019 5 EIGRP

35/59

35

classful

subnet no auto-summ EIGRP

: EIGRP

Summary Route ip summary-address eigrp interface

5.1 ip summary-addresseigrp

5.1 ip summary-address eigrp

8/7/2019 5 EIGRP

36/59

36

As-number EIGRP (AS) Address ip address ;

Class A, B CMask ip mask Admin-distance ();

0 255

Query

Query

IOS nu110

IOS nu110

172.16.16.0/21 subnet nu110 (null)

8/7/2019 5 EIGRP

37/59

37

( ) query query ()

STUB Routers 2 2 hub spoke network

query hub spoke, hub router spoke router

spoke router

hub router spoke router

hub router spoke router stub router EIGRP stub router EIGRP

8/7/2019 5 EIGRP

38/59

38

, , stub router

Stub EIGRP

IOS 12.0(7)T spoke router stub router stub router peer stub router stub router stub router hub router stub router query stubrouter stub router stub router query stuck-in-active(SIA) stub router EIGRP hub

spoke stub , hub router

: stub router EIGRP stub stub router

stub hub router EIGRP ;

EIGRP stup eigrp stub

8/7/2019 5 EIGRP

39/59

39

5.2 eigrp stub

5.2 stub router

Receive-only

receive-only EIGRP autonomoussystem(AS), - (connected, static, and summary) receive-only

Connected

connected stub EIGRP , connected

EIGRP stub

Static static stub EIGRP

Summary

summary stub EIGRP

ipsummary-address auto-summary

8/7/2019 5 EIGRP

40/59

40

receive-only , exceptreceive-only

stub EIGRP hubrouter , hub router

stub hub router spoke router spoke router

: EIGRP , classful, hub router ,

ip classless , ip classless IOS stub EIGRP

stub EIGRP query spoke router

EIGRP stub EIGRP stub, hub router query

spoke router WAN hub router

8/7/2019 5 EIGRP

41/59

41

spoke router, query ( SIA),

Load Balance

Cost Load Balance

IP IOS maximum-path router

( maximum-path 1 load)

: IOS 6 IOS

16 4 maximum-path.

load balancing

8/7/2019 5 EIGRP

42/59

42

load balancing load balancin

ping interface

Unequal-Cost Load Balancing

EIGRP Unequal-Cost Load Balancing EIGRP load balancing variance 1 Unequal-CostLoad balancing

1 128 load balancing variance 1 Equal-Cost Load Balancing variance

EIGRP 3 FD 5000 variance 3 topology 15000 FD 5001 14999 unequal-cost load balancing AD FD

8/7/2019 5 EIGRP

43/59

43

Unequal-cost load balancing

5.6 1

FutureTech R&D unequal-cost load balancing unequal-cost load balancing (wan) RnDA RnDC A RnDA A RnDA 5.3 topology A

5.6 Unequal-cost load balancing

8/7/2019 5 EIGRP

44/59

44

5.3 topology A

Advertised A 35 15 RnDB A 20 10 RnDD A 35 25 RnDE

RnDD FD variance 2 RnDA unequal-cost variance 2 FD

40 FD

FD 40 FD

? ! Unequal-cost load balancing

? ! RnDB RnDB RnDB advertised AD FD 15 20 RnDA RnDD RnDB

EIGRP WANs

EIGRP wannon-broadcast multi-access (NBMA) EIGRP

8/7/2019 5 EIGRP

45/59

45

wan OSPF topology

wan Wan EIGRP

wan EIGRP wan wan wan

EIGRP 50 interface subinterface EIGRP

bandwidth (T1 )

perinterface ipbandwidth-percent eigrp as-number percent interface as-number AS percent EIGRP 100 artificially low routing-policy

Cisco IOS point-to-point subinterfaces ( interface serial ) T1

implementations T1 ( 1.544 Mbps) 56 64 Kbps subinterface bandwidth

8/7/2019 5 EIGRP

46/59

46

(CIR) permanent virtual (PVC) point-to-point subinterface

Interface multipoint frame relay( ATM primary-rate ISDN PRI) EIGRP bandwidth physicalinterface frame relay physical interface EIGRP

Interface multipoint CIR CIR topologyInterface point to po CIR Multipoint

Connecting to Remote Sites

Wan FutureTech 5 sites site point-to-multipoint frame relay site site ()

Site CIR 1000 Kbps 4 sites CIR sites 200 Kbps site 5 CIR 100Kbps 5.7 site

8/7/2019 5 EIGRP

47/59

47

EIGRP interface site site 200 Kbps EIGRP

50 site 100 Kbps site CIR 1 site 100 Kbp

5.7 Point-to-Multipoint WAN Routing

Site CIR point-to-point site multipoint site site site site site CIR site

EIGRP interface 100 Kbps * 5 = 500 Kbps

8/7/2019 5 EIGRP

48/59

48

site point-to-point

topology

Point-to-Point ConnectionsSite CIR 250 Kbps ISP 5 site CIR 100 Kbps 5.8

5.8 Point-to-Point WAN Routing

CIR interface site 100 Kbps site

8/7/2019 5 EIGRP

49/59

49

site 50 Kbps

EIGRP 50

25 Kbps EIGRP ip bandwidth-percent eigrp as-numberpercent interface EIGRP point-to-point topology interface subinterface EIGRP 200 packet EIGRP frame relay network packet EIGRP 50Kbps provisioned 100 Kbps 50-50

EIGRP ()

Show ip eigrp neighbors EIGRP IP show ip eigrpneighbors RnD1

RnD1#show ip eigrp neighborsIP-EIGRP neighbors for process 65000H Address Interface Hold Uptime SRTT RTO Q Seqsec) (ms) Cnt Num1 10.1.0.2 Fa0/1 10 1d00h 1 200 0 320 10.0.0.5 Fa0/0 13 1d00h 49 294 0 69

8/7/2019 5 EIGRP

50/59

50

5.4 show ip eigrp neighborsColu

mn

Description

H(handle)

Cisco IOS

Address

Network layer

Interface

HoldTime

packet Hello packet Cisco IOS packetEIGRP hello

Uptime

Router local

Smoothedround-triptime(SRTT)

packetEIGRP retransmissiontimeout (RTO)

RTO packet retransmitting retransmission

Queuecount

0 0 packet EIGRP

8/7/2019 5 EIGRP

51/59

51

SeqNum

show ip eigrp topology EIGRP show ip eigrptopology Router1 ID 10.0.0.6 ID EIGRP interface 65000

RnD1#show ip eigrp topologyIP-EIGRP Topology Table for AS(65000)/ID(10.0.0.6)Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,r - reply Status, s - sia StatusP 10.0.0.8/30, 2 successors, FD is 30720via 10.0.0.5 (30720/28160), FastEthernet0/0via 10.1.0.2 (30720/28160), FastEthernet0/1P 10.0.0.12/30, 1 successors, FD is 33280via 10.0.0.5 (33280/30720), FastEthernet0/0P 10.2.0.0/30, 1 successors, FD is 35840

via 10.0.0.5 (35840/33280), FastEthernet0/0P 10.2.1.0/24, 1 successors, FD is 161280via 10.0.0.5 (161280/158720), FastEthernet0/0P 10.1.2.0/24, 1 successors, FD is 156160via 10.1.0.2 (156160/128256), FastEthernet0/1P 10.2.2.0/24, 1 successors, FD is 161280via 10.0.0.5 (161280/158720), FastEthernet0/0P 10.0.0.0/30, 1 successors, FD is 30720via 10.0.0.5 (30720/28160), FastEthernet0/0P 10.1.1.0/24, 1 successors, FD is 128256via Connected, Loopback0P 10.1.0.0/30, 1 successors, FD is 28160Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,

8/7/2019 5 EIGRP

52/59

8/7/2019 5 EIGRP

53/59

8/7/2019 5 EIGRP

54/59

54

E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static routeGateway of last resort is not set10.0.0.0/8 is variably subnetted, 11 subnets, 2 masksD 10.0.0.8/30 [90/30720] via 10.1.0.2, 1d00h, FastEthernet0/1[90/30720] via 10.0.0.5, 1d00h, FastEthernet0/0D 10.0.0.12/30 [90/33280] via 10.0.0.5, 23:26:13, FastEthernet0/0D 10.2.0.0/30 [90/35840] via 10.0.0.5, 23:24:07, FastEthernet0/0D 10.2.1.0/24 [90/161280] via 10.0.0.5, 23:23:06, FastEthernet0/0D 10.1.2.0/24 [90/156160] via 10.1.0.2, 1d00h, FastEthernet0/1D 10.2.2.0/24 [90/161280] via 10.0.0.5, 23:19:17, FastEthernet0/0C 10.1.1.0/24 is directly connected, Loopback0D 10.0.0.0/30 [90/30720] via 10.0.0.5, 1d00h, FastEthernet0/0C 10.1.0.0/30 is directly connected, FastEthernet0/1C 10.0.0.4/30 is directly connected, FastEthernet0/0D 10.0.0.16/30 [90/33280] via 10.0.0.5, 23:21:53, FastEthernet0/0

EIGRP internal external summary EIGRP D EIGRPexternal () D EX [90/30720] 90 EIGRP least-costbandwidth plus EIGRP (FD) topologyEIGRP RIP RIP 10.0.0.12 3 hop

8/7/2019 5 EIGRP

55/59

55

3 hop RIP EIGRP 33280 router Hops EIGRP hop

Cisco

EIGRP 90 RIP 120 EIGRP RIP hop EIGRP

10.1.0.2 next hop router 10.0.0.8/30 nexthop topology EIGRP EIGRP adjacencies output 1d00h 1 0 23:26:13 23 26 13

output interface FastEternet0/1 10.0.0.8/30 nu110

advertised Cisco ISO summaryroutes Nu110 interface interface nu110

5.4 subnet summarized range Packet interface nu110( bit bucket loop

8/7/2019 5 EIGRP

56/59

8/7/2019 5 EIGRP

57/59

8/7/2019 5 EIGRP

58/59

58

Xmit Queue Mean Pacing Time Multicast PendingInterface Peers Un/Reliable SRTT Un/Reliable Flow Timer RoutesFa0/0 1 0/0 49 0/1 248 0

Fa0/1 1 0/0 1 0/1 50 0L00 0 0/0 0 0/1 0 0

5.6 outputColumn DescriptionInterface Interface EIGRPPeers EIGRP Xmit Queue Un/Reliable

Mean SRTT

SRTTPacing Time Un/Reliable Pacing time Packet

EIGRP interface()

Multicast Flow Timer

multicast EIGRP packetPending Routes

show ip eigrp trafficshow ip eigrptraffic

Router1#show ip eigrp trafficIP-EIGRP Traffic Statistics for AS 65000Hellos sent/received: 81853/65407Updates sent/received: 30/31Queries sent/received: 2/6

8/7/2019 5 EIGRP

59/59

59

Replies sent/received: 6/2Acks sent/received: 33/30Input queue high water mark 2, 0 drops

SIA-Queries sent/received: 0/0SIA-Replies sent/received: 0/0Hello Process ID: 164PDM Process ID: 162

EIGRP Cisco EIGRP EIGRP EIGRP

EIGRP

EIGRP EIGRP summarization stub routers unequal-cost load balancing variance Wan

EIGRP

AS ISP 6 BGP