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CCNP之BSCI实验2：EIGRP bandwidth 和通配符掩码
实验目的：
1. 针对端口配置带宽值
2. 通配符掩码的配置
实验拓扑：如图
实验步骤如下：
注：这个实验是在实验1的基础上进行的，拓扑和实验1一样
r1(config)#int loo1
r1(config-if)#ip add
*Mar 1 00:04:17.051: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up
r1(config-if)#ip add 1.1.1.1 255.255.255.0
r1(config-if)#int s0/0
r1(config-if)#exit
r1(config)#int f1/0
r1(config-if)#ip add 172.16.1.1 255.255.255.0
r1(config-if)#no sh
r1(config-if)#exit
r1(config)#
*Mar 1 00:05:07.943: %LINK-3-UPDOWN: Interface FastEthernet1/0, changed state to up
*Mar 1 00:05:08.943: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, changed state to up
r1(config)#router eigrp 1
r1(config-router)#no au
r1(config-router)#net 1.0.0.0
r1(config-router)#net 172.16.0.0
r1(config-router)#
*Mar 1 00:07:24.643: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.1.2 (FastEthernet1/0) is up: new adjacency
r1(config-router)#
*Mar 1 00:07:51.343: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.1.3 (FastEthernet1/0) is up: new adjacency
r1(config-router)#int s0/0
r1(config-if)#ip add 172.16.2.1 255.255.255.0
r1(config-if)#clo r 64000
r1(config-if)#no sh
r1(config-if)#
*Mar 1 00:08:55.379: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up
*Mar 1 00:08:56.379: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up
r1(config-if)#
*Mar 1 00:09:25.223: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to down
r1(config-if)#do
*Mar 1 00:09:45.207: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up
*Mar 1 00:09:45.735: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.2.2 (Serial0/0) is up: new adjacency
r1(config-if)#do sh int s0/0查看串口的信息
Serial0/0 is up, line protocol is up
Hardware is M4T
Internet address is 172.16.2.1/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, crc 16, loopback not set
Keepalive set (10 sec)
Restart-Delay is 0 secs
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of “show interface” counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1158 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
22 packets input, 1933 bytes, 0 no buffer
Received 12 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
33 packets output, 2941 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 output buffer failures, 0 output buffers swapped out
3 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up
缺省情况下EIGRP最多使用带宽的50%来发送路由信息。对以串口链路，CISCO设备默认为T1，但是实际值有DCE段的时钟控制。在一般的情况下，对于正常使用没有太大的问题，但是这样可以会导致EIGRP找到到达目标的路径不是最好 的，或者在低带宽的链路上导致路由信息淹没链路，使得链路没有足够的带宽发送用户数据。所以通常需手动配置带宽：
r1(config-if)#bandwidth 64 修改带宽
r1(config-if)#do sh int s0/0
Serial0/0 is up, line protocol is up
Hardware is M4T
Internet address is 172.16.2.1/24
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, crc 16, loopback not set
Keepalive set (10 sec)
Restart-Delay is 0 secs
Last input 00:00:04, output 00:00:02, output hang never
Last clearing of “show interface” counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 48 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
71 packets input, 4999 bytes, 0 no buffer
Received 28 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
83 packets output, 6043 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 output buffer failures, 0 output buffers swapped out
3 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up
r1(config-if)#
r1(config-if)#do sh ip eigrp n
IP-EIGRP neighbors for process 1
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
2 172.16.2.2 Se0/0 13 00:02:44 68 2280 0 18
1 172.16.1.3 Fa1/0 13 00:04:38 98 588 0 15
0 172.16.1.2 Fa1/0 13 00:05:05 86 516 0 17
r1(config-if)#do sh ip route eigrp
2.0.0.0/24 is subnetted, 1 subnets
D 2.2.2.0 [90/156160] via 172.16.1.2, 00:03:06, FastEthernet1/0
3.0.0.0/24 is subnetted, 1 subnets
D 3.3.3.0 [90/156160] via 172.16.1.3, 00:03:06, FastEthernet1/0
4.0.0.0/24 is subnetted, 1 subnets
D 4.4.4.0 [90/156160] via 172.16.1.3, 00:00:26, FastEthernet1/0
r1(config-if)#do wr
Building configuration…
[OK]
r1(config-if)#
r1(config-if)#
r2(config)#int loo 2
r2(config-if)#ip add
*Mar 1 00:05:45.967: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback2, changed state to up
r2(config-if)#ip add 2.2.2.2 255.255.255.0
r2(config-if)#int f1/0
r2(config-if)#ip add 172.16.1.2 255.255.255.0
r2(config-if)#no sh
r2(config-if)#
*Mar 1 00:06:34.731: %LINK-3-UPDOWN: Interface FastEthernet1/0, changed state to up
*Mar 1 00:06:35.731: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, changed state to up
r2(config-if)#exit
r2(config)#router eigrp 1
r2(config-router)#no au
r2(config-router)#net 2.2.2.0
r2(config-router)#net 172.16.0.0
r2(config-router)#
*Mar 1 00:07:24.291: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.1.1 (FastEthernet1/0) is up: new adjacency
r2(config-router)#
*Mar 1 00:07:50.951: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.1.3 (FastEthernet1/0) is up: new adjacency
r2(config-router)#exit
r2(config)#int s0/0
r2(config-if)#ip add 172.16.2.2 255.255.255.0
r2(config-if)#no sh
r2(config-if)#
*Mar 1 00:09:27.299: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up
*Mar 1 00:09:28.299: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up
r2(config-if)#
*Mar 1 00:09:45.267: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.2.1 (Serial0/0) is up: new adjacency
r2(config-if)#bandwidth 64
r2(config-if)#do wr
Building configuration…
[OK]
r2(config-if)#
r2(config-if)#
3(config)#int loo 3
r3(config-if)#ip add
*Mar 1 00:05:15.007: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback3, changed state to up
r3(config-if)#ip add 3.3.3.3 255.255.255.0
r3(config-if)#int f0/0
r3(config-if)#ip add 172.16.1.3 255.255.255.0
r3(config-if)#no sh
r3(config-if)#exit
r3(config)#
*Mar 1 00:05:36.851: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Mar 1 00:05:37.851: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
r3(config)#router eigrp 1
r3(config-router)#no au
r3(config-router)#net 3.3.3.0
r3(config-router)#net 172.16.0.0
r3(config-router)#
*Mar 1 00:07:50.663: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.1.1 (FastEthernet0/0) is up: new adjacency
*Mar 1 00:07:50.667: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.1.2 (FastEthernet0/0) is up: new adjacency
r3(config-router)#do sh ip route
Codes: C – connected, S – static, R – RIP, M – mobile, B – BGP
D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area
N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2
E1 – OSPF external type 1, E2 – OSPF external type 2
i – IS-IS, su – IS-IS summary, L1 – IS-IS level-1, L2 – IS-IS level-2
ia – IS-IS inter area, * – candidate default, U – per-user static route
o – ODR, P – periodic downloaded static route
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/156160] via 172.16.1.1, 00:00:04, FastEthernet0/0
2.0.0.0/24 is subnetted, 1 subnets
D 2.2.2.0 [90/156160] via 172.16.1.2, 00:00:04, FastEthernet0/0
3.0.0.0/24 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Loopback3
172.16.0.0/24 is subnetted, 1 subnets
C 172.16.1.0 is directly connected, FastEthernet0/0
r3(config-router)#
r3(config-router)#exit
r3(config)#int loo 4
r3(config-if)#ip add
*Mar 1 00:13:10.871: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback4, changed state to up
r3(config-if)#ip add 4.4.4.4 255.255.255.0
r3(config-if)#int lo 5
r3(config-if)#ip add
*Mar 1 00:13:28.451: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback5, changed state to up
r3(config-if)#ip add 5.5.5.5 255.255.255.0
r3(config-if)#exit
r3(config)#router eigrp 1
r3(config-router)#no au
r3(config-router)#net 4.4.4.0 0.0.0.255配置网络通配符掩码，注意现在只发布LOO 4,而发布LOO5
r3(config-router)#do sh ip eigrp int
IP-EIGRP interfaces for process 1
Xmit Queue Mean Pacing Time Multicast Pending
Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes
Lo3 0 0/0 0 0/1 0 0
Fa0/0 2 0/0 269 0/1 1272 0
Lo4 0 0/0 0 0/1 0 0
r3(config-router)#do wr
Building configuration…
[OK]
r3(config-router)#
转载于:https://blog.51cto.com/gauyanm/286562
发布者：全栈程序员-用户IM，转载请注明出处：https://javaforall.cn/161568.html原文链接：https://javaforall.cn
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