夜蓝灵 2007-12-3 19:55
(ISIS\OSPF实验)ISIS与OSPF域间选路比较
[table][tr][td=1,1,536][align=left][b]ISIS与OSPF域间选路比较[/b][/align]
[align=right][b][font=宋体][size=9pt]Document ID: 00012[/size][/font][/b][/align]
[align=center][b][font=宋体][size=9pt][/size][/font][/b][/align]
[b][font=宋体][size=9pt][/size][/font][/b]
[/td][/tr][tr][td=1,1,536][align=left][b][font=宋体][size=12pt]目录[/size][/font][/b][/align]
[align=left][b][color=#336666][font=宋体][size=10.5pt]提要[/size][/font][/color][/b][/align]
[align=left][b][color=#336666][font=宋体][size=10.5pt]正文[/size][/font][/color][/b][/align]
[align=left][color=#336666][font=宋体][size=10.5pt]TOPO[/size][/font][/color][color=#336666][font=宋体][size=10.5pt]如下[/size][/font][/color][/align]
[align=left][color=#336666][font=宋体][size=10.5pt]基本配置如下[/size][/font][/color][/align]
[align=left][b][color=#336666][font=宋体][size=10.5pt]验证[/size][/font][/color][/b][/align]
[align=left][b][color=#336666][font=宋体][size=10.5pt]附注[/size][/font][/color][/b][/align]
[align=center][b][font=宋体][size=9pt][size=3][/size][/size][/font][/b][/align]
[align=left][b][color=#336666][font=宋体][size=10.5pt][/size][/font][/color][/b][/align]
[/td][/tr][tr][td=1,1,536][align=left][b][font=宋体][size=12pt]提要：[/size][/font][/b][size=12pt]ISIS[/size][font=宋体][size=12pt]与[/size][/font][size=12pt]OSPF[/size][font=宋体][size=12pt]域间选路比较（[/size][/font][size=12pt]ISIS[/size][font=宋体][size=12pt]部分）[/size][/font][b][/b][/align]
[align=left][b][font=宋体][size=12pt]TOPO[/size][/font][/b][b][font=宋体][size=12pt]如下[/size][/font][/b][b][font=宋体][size=12pt]：[/size][/font][/b][/align]
[align=left][b][font=宋体][size=12pt][/size][/font][/b][/align]
[align=left][font=宋体][size=12pt][img=464,394]http://www.one-tom.com/bbs/uploads/20070330_182903_first.gif[/img] [/size][/font][/align]
[align=left][b][font=宋体][size=12pt]基本配置如下[/size][/font][/b][b][font=宋体][size=12pt]：[/size][/font][/b][/align]
[align=left][font=Wingdings][size=12pt]l
[/size][/font][b][font=宋体][size=12pt]R1[/size][/font][/b][/align]
[align=left][font=Wingdings][size=12pt]l
[/size][/font][b][font=宋体][size=12pt]R2[/size][/font][/b][/align]
[align=left][font=Wingdings][size=12pt]l
[/size][/font][b][font=宋体][size=12pt]R3[/size][/font][/b][/align]
[align=left][font=Wingdings][size=12pt]l
[/size][/font][b][font=宋体][size=12pt]R4[/size][/font][/b][/align]
[align=left][font=Wingdings][size=12pt]l
[/size][/font][b][font=宋体][size=12pt]R5[/size][/font][/b][/align]
[align=left][b][font=宋体][size=12pt] [/size][/font][/b][/align]
[table][tr][td=1,1,442][align=center][b][font=宋体][size=12.5pt]R1[/size][/font][/b][b][font=宋体][size=12.5pt]基本配置[/size][/font][/b][/align]
[/td][/tr][tr][td=1,1,442][align=left][size=12pt]interface Loopback0[/size][/align]
[align=left][size=12pt]
ip address 1.1.1.1 255.255.255.0[/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]interface Serial1/0[/size][/align]
[align=left][size=12pt]
ip address 12.1.1.1 255.255.255.0[/size][/align]
[align=left][size=12pt]
ip router isis [/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]interface Serial2/0[/size][/align]
[align=left][size=12pt]
ip address 13.1.1.1 255.255.255.0[/size][/align]
[align=left][size=12pt]
ip router isis [/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]router isis [/size][/align]
[align=left][size=12pt]
net 02.0010.0100.1001.00[/size][/align]
[align=left][size=12pt]
passive-interface Loopback0[/size][/align]
[/td][/tr][/table][align=left][font=宋体][size=12pt] [/size][/font][/align]
[table][tr][td=1,1,442][align=center][b][font=宋体][size=12.5pt]R2[/size][/font][/b][b][font=宋体][size=12.5pt]基本配置[/size][/font][/b][/align]
[/td][/tr][tr][td=1,1,442][align=left][size=12pt]interface Loopback0[/size][/align]
[align=left][size=12pt]
ip address 2.2.2.2 255.255.255.0[/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]interface Serial1/0[/size][/align]
[align=left][size=12pt]
ip address 24.1.1.2 255.255.255.0[/size][/align]
[align=left][size=12pt]
ip router isis [/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]interface Serial2/0[/size][/align]
[align=left][size=12pt]
ip address 12.1.1.2 255.255.255.0[/size][/align]
[align=left][size=12pt]
ip router isis [/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]router isis [/size][/align]
[align=left][size=12pt]
net 01.0020.0200.2002.00[/size][/align]
[align=left][size=12pt]
passive-interface Loopback0[/size][/align]
[/td][/tr][/table][align=left][font=宋体][size=12pt] [/size][/font][/align]
[table][tr][td=1,1,442][align=center][b][font=宋体][size=12.5pt]R3[/size][/font][/b][b][font=宋体][size=12.5pt]基本配置[/size][/font][/b][/align]
[/td][/tr][tr][td=1,1,442][align=left][size=12pt]interface Loopback0[/size][/align]
[align=left][size=12pt]
ip address 3.3.3.3 255.255.255.0[/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]interface Ethernet0/0[/size][/align]
[align=left][size=12pt]
ip address 34.1.1.3 255.255.255.0[/size][/align]
[align=left][size=12pt]
ip router isis [/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]interface Serial1/0[/size][/align]
[align=left][size=12pt]
ip address 13.1.1.3 255.255.255.0[/size][/align]
[align=left][size=12pt]
ip router isis [/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]interface Serial2/0[/size][/align]
[align=left][size=12pt]
ip address 35.1.1.3 255.255.255.0[/size][/align]
[align=left][size=12pt]
ip router isis [/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]router isis [/size][/align]
[align=left][size=12pt]
net 03.0030.0300.3003.00[/size][/align]
[align=left][size=12pt]
passive-interface Loopback0[/size][/align]
[/td][/tr][/table][align=left][font=宋体][size=12pt] [/size][/font][/align]
[table][tr][td=1,1,442][align=center][b][font=宋体][size=12.5pt]R4[/size][/font][/b][b][font=宋体][size=12.5pt]基本配置[/size][/font][/b][/align]
[/td][/tr][tr][td=1,1,442][align=left][size=12pt]interface Loopback0[/size][/align]
[align=left][size=12pt]
ip address 4.4.4.4 255.255.255.0[/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]interface Ethernet0/0[/size][/align]
[align=left][size=12pt]
ip address 34.1.1.4 255.255.255.0[/size][/align]
[align=left][size=12pt]
ip router isis [/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]interface Serial2/0[/size][/align]
[align=left][size=12pt]
ip address 24.1.1.4 255.255.255.0[/size][/align]
[align=left][size=12pt]
ip router isis [/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]router isis [/size][/align]
[align=left][size=12pt]
net 03.0040.0400.4004.00[/size][/align]
[align=left][size=12pt]
passive-interface Loopback0[/size][/align]
[align=left][size=12pt]!
[/size][/align]
[/td][/tr][tr][td=1,1,442][align=center][b][font=宋体][size=12.5pt]R5[/size][/font][/b][b][font=宋体][size=12.5pt]基本配置[/size][/font][/b][/align]
[/td][/tr][tr][td=1,1,442][align=left][size=12pt]interface Loopback0[/size][/align]
[align=left][size=12pt]
ip address 5.5.5.5 255.255.255.0[/size][/align]
[align=left][size=12pt]![/size][/align]
[align=left][size=12pt]interface Serial1/0[/size][/align]
[align=left][size=12pt]
ip address 35.1.1.5 255.255.255.0[/size][/align]
[align=left][size=12pt]
ip router isis [/size][/align]
[align=left][size=12pt]
![/size][/align]
[align=left][size=12pt]router isis [/size][/align]
[align=left][size=12pt]
net 03.0050.0500.5005.00[/size][/align]
[align=left][size=12pt]
is-type level-1[/size][/align]
[align=left][size=12pt]
passive-interface Loopback0[/size][/align]
[/td][/tr][/table][align=left][font=宋体][size=12pt] [/size][/font][/align]
[align=left][font=宋体][size=12pt] [/size][/font][/align]
[align=left][b][font=宋体][size=12pt]测试[/size][/font][/b][b][font=宋体][size=12pt]⑴[/size][/font][/b][b][font=宋体][size=12pt]：[/size][/font][/b][b][size=12pt][/size][/b][/align]
[align=left][font=宋体][size=12pt]在[/size][/font][size=12pt]R3[/size][font=宋体][size=12pt]上查看[/size][/font][size=12pt]2.0.0[/size][size=12pt].0/24[/size][font=宋体][size=12pt]的路由，有两条路径做负载[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]r3#sho ip route | be 2.0.0.0/24[/size][/align]
[align=left][size=12pt]
2.0.0.0/24 is subnetted, 1 subnets[/size][/align]
[align=left][size=12pt]i L2
2.2.2.0 [115/20] via [color=red]13.1.1[/color][color=red].1[/color], Serial1/0[/size][/align]
[align=left][size=12pt]
[115/20] via [color=red]34.1.1.4[/color], Ethernet0/0[/size][/align]
[align=left][size=12pt]r3#traceroute 2.2.2.2[/size][/align]
[align=left][size=12pt]Type escape sequence to abort.[/size][/align]
[align=left][size=12pt]Tracing the route to 2.2.2.2[/size][/align]
[align=left][size=12pt]
1
* [/size][/align]
[align=left][size=12pt]
13.1.1.1 32 msec [color=red]――>[/color][/size][font=宋体][size=12pt]走下面的那条[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]
34.1.1.4 4 msec
[color=red]――>[/color][/size][font=宋体][size=12pt]走上面的那条[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]
2 12.1.1.2 56 msec[/size][/align]
[align=left][size=12pt]24.1.1.2 20 msec *[/size][/align]
[align=left][font=宋体][size=12pt]在[/size][/font][size=12pt]R5[/size][font=宋体][size=12pt]上使用扩张[/size][/font][size=12pt]ping [/size][font=宋体][size=12pt]加[/size][/font][size=12pt]record[/size][font=宋体][size=12pt]参数[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]r5#ping[/size][/align]
[align=left][size=12pt]Protocol [ip]: [/size][/align]
[align=left][size=12pt]Target IP address: 2.2.2.2[/size][/align]
[align=left][size=12pt]Repeat count [5]: [/size][/align]
[align=left][size=12pt]Datagram size [100]: [/size][/align]
[align=left][size=12pt]Timeout in seconds [2]: [/size][/align]
[align=left][size=12pt]Extended commands [n]: y[/size][/align]
[align=left][size=12pt]Source address or interface: [/size][/align]
[align=left][size=12pt]Type of service [0]: [/size][/align]
[align=left][size=12pt]Set DF bit in IP header? [no]: [/size][/align]
[align=left][size=12pt]Validate reply data? [no]: [/size][/align]
[align=left][size=12pt]Data pattern [0xABCD]: [/size][/align]
[align=left][size=12pt]Loose, Strict, Record, Timestamp, Verbose[none]: re[/size][/align]
[align=left][size=12pt]Number of hops [ 9 ]: [/size][/align]
[align=left][size=12pt]Loose, Strict, Record, Timestamp, Verbose[RV]: [/size][/align]
[align=left][size=12pt]Sweep range of sizes [n]: [/size][/align]
[align=left][size=12pt]Type escape sequence to abort.[/size][/align]
[align=left][size=12pt]Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:[/size][/align]
[align=left][size=12pt]Packet has IP options:
Total option bytes= 39, padded length=40[/size][/align]
[align=left][size=12pt]
Record route: <*>[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt] [/size][/align]
[align=left][size=12pt]Reply to request 0 (48 ms).
Received packet has options[/size][/align]
[align=left][size=12pt]
Total option bytes= 40, padded length=40[/size][/align]
[align=left][size=12pt]
Record route:[/size][/align]
[align=left][size=12pt]
(35.1.1.5)[/size][/align]
[align=left][size=12pt]
(34.1.1.3)[/size][/align]
[align=left][size=12pt]
(24.1.1.4)[color=red] ――>[/color][/size][font=宋体][size=12pt]走上面的那条[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]
(2.2.2.2)[/size][/align]
[align=left][size=12pt]
(24.1.1.2)[/size][/align]
[align=left][size=12pt]
(34.1.1.4)[/size][/align]
[align=left][size=12pt]
(35.1.1.3)[/size][/align]
[align=left][size=12pt]
(35.1.1.5) <*>[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
End of list[/size][/align]
[align=left][size=12pt] [/size][/align]
[align=left][size=12pt]Reply to request 1 (72 ms).
Received packet has options[/size][/align]
[align=left][size=12pt]
Total option bytes= 40, padded length=40[/size][/align]
[align=left][size=12pt]
Record route:[/size][/align]
[align=left][size=12pt]
(35.1.1.5)[/size][/align]
[align=left][size=12pt]
(13.1.1.3)[/size][/align]
[align=left][size=12pt]
(12.1.1.1)[color=red] ――>[/color][/size][font=宋体][size=12pt]走下面的那条[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]
(2.2.2.2)[/size][/align]
[align=left][size=12pt]
(12.1.1.2)[/size][/align]
[align=left][size=12pt]
(13.1.1.1)[/size][/align]
[align=left][size=12pt]
(35.1.1.3)[/size][/align]
[align=left][size=12pt]
(35.1.1.5) <*>[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
End of list[/size][/align]
[align=left][size=12pt] [/size][/align]
[align=left][size=12pt]Reply to request 2 (48 ms).
Received packet has options[/size][/align]
[align=left][size=12pt]
Total option bytes= 40, padded length=40[/size][/align]
[align=left][size=12pt]
Record route:[/size][/align]
[align=left][size=12pt]
(35.1.1.5)[/size][/align]
[align=left][size=12pt]
(34.1.1.3)[/size][/align]
[align=left][size=12pt]
(24.1.1.4)[color=red] ――>[/color][/size][font=宋体][size=12pt]走上面的那条[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]
(2.2.2.2)[/size][/align]
[align=left][size=12pt]
(24.1.1.2)[/size][/align]
[align=left][size=12pt]
(34.1.1.4)[/size][/align]
[align=left][size=12pt]
(35.1.1.3)[/size][/align]
[align=left][size=12pt]
(35.1.1.5) <*>[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
End of list[/size][/align]
[align=left][size=12pt] [/size][/align]
[align=left][size=12pt]Reply to request 3 (72 ms).
Received packet has options[/size][/align]
[align=left][size=12pt]
Total option bytes= 40, padded length=40[/size][/align]
[align=left][size=12pt]
Record route:[/size][/align]
[align=left][size=12pt]
(35.1.1.5)[/size][/align]
[align=left][size=12pt]
(13.1.1.3)[/size][/align]
[align=left][size=12pt]
(12.1.1.1)[color=red] ――>[/color][/size][font=宋体][size=12pt]走下面的那条[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]
(2.2.2.2)[/size][/align]
[align=left][size=12pt]
(12.1.1.2)[/size][/align]
[align=left][size=12pt]
(13.1.1.1)[/size][/align]
[align=left][size=12pt]
(35.1.1.3)[/size][/align]
[align=left][size=12pt]
(35.1.1.5) <*>[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
End of list[/size][/align]
[align=left][size=12pt] [/size][/align]
[align=left][size=12pt]Reply to request 4 (48 ms).
Received packet has options[/size][/align]
[align=left][size=12pt]
Total option bytes= 40, padded length=40[/size][/align]
[align=left][size=12pt]
Record route:[/size][/align]
[align=left][size=12pt]
(35.1.1.5)[/size][/align]
[align=left][size=12pt]
(34.1.1.3)[/size][/align]
[align=left][size=12pt]
(24.1.1.4)[color=red] ――>[/color][/size][font=宋体][size=12pt]走上面的那条[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]
(2.2.2.2)[/size][/align]
[align=left][size=12pt]
(24.1.1.2)[/size][/align]
[align=left][size=12pt]
(34.1.1.4)[/size][/align]
[align=left][size=12pt]
(35.1.1.3)[/size][/align]
[align=left][size=12pt]
(35.1.1.5) <*>[/size][/align]
[align=left][size=12pt]
(0.0.0.0)[/size][/align]
[align=left][size=12pt]
End of list[/size][/align]
[align=left][b][font=宋体][size=12pt]测试[/size][/font][/b][b][font=宋体][size=12pt]⑵[/size][/font][/b][b][size=12pt][/size][/b][/align]
[align=left][font=宋体][size=12pt]注意如果使用[/size][/font][size=12pt]traceroute[/size][font=宋体][size=12pt]跟踪[/size][/font][size=12pt]2.2.2[/size][size=12pt].2 [/size][font=宋体][size=12pt]的路径时，如果没有在[/size][/font][size=12pt]R3[/size][font=宋体][size=12pt]上面关闭[/size][/font][size=12pt]fast[/size][font=宋体][size=12pt]－[/size][/font][size=12pt]switching[/size][font=宋体][size=12pt]是看不出有两条的。[/size][/font][b][size=9pt][/size][/b][/align]
[align=left][size=12pt]r5#traceroute 2.2.2.2
[/size][font=宋体][size=12pt]没有在[/size][/font][size=12pt]R3[/size][font=宋体][size=12pt]关闭[/size][/font][size=12pt]fast[/size][font=宋体][size=12pt]－[/size][/font][size=12pt]switching[/size][font=宋体][size=12pt]的效果[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]Type escape sequence to abort.[/size][/align]
[align=left][size=12pt]Tracing the route to 2.2.2.2[/size][/align]
[align=left][size=12pt]
1 35.1.1.3 28 msec 20 msec 20 msec[/size][/align]
[align=left][size=12pt]
2 13.1.1.1 40 msec 40 msec 40 msec[/size][/align]
[align=left][size=12pt]
3 12.1.1.2 52 msec *
48 msec[/size][/align]
[align=left][font=宋体][size=12pt]为了达到实验效果我们关闭[/size][/font][size=12pt]R3[/size][font=宋体][size=12pt]所有接口的[/size][/font][size=12pt]fast[/size][font=宋体][size=12pt]－[/size][/font][size=12pt]switching[/size][font=宋体][size=12pt]，然后在[/size][/font][size=12pt]R5[/size][font=宋体][size=12pt]上[/size][/font][size=12pt]traceroute 2.2.2.2[/size][/align]
[align=left][size=12pt]r3(config)#int s1/0[/size][/align]
[align=left][size=12pt]r3(config-if)#no ip route-cac[/size][/align]
[align=left][size=12pt]r3(config-if)#no ip route-cache [/size][/align]
[align=left][size=12pt]r3(config-if)#int e0/0[/size][/align]
[align=left][size=12pt]r3(config-if)#no ip route-cache[/size][/align]
[align=left][size=12pt]r3(config-if)#int s2/0[/size][/align]
[align=left][size=12pt]r3(config-if)#no ip route-cache[/size][/align]
[align=left][size=12pt] [/size][/align]
[align=left][size=12pt]r5#traceroute 2.2.2.2[/size][/align]
[align=left][size=12pt]Type escape sequence to abort.[/size][/align]
[align=left][size=12pt]Tracing the route to 2.2.2.2[/size][/align]
[align=left][size=12pt]
1 35.1.1.3 16 msec 20 msec 20 msec[/size][/align]
[align=left][size=12pt]
2 13.1.1.1 40 msec
[color=red]――>[/color][/size][font=宋体][size=12pt]走下面的那条[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]
34.1.1.4 20 msec
[color=red]――>[/color][/size][font=宋体][size=12pt]走上面的那条[/size][/font][size=12pt][/size][/align]
[align=left][size=12pt]
13.1.1.1 40 msec[/size][/align]
[align=left][size=12pt]
3 24.1.1.2 52 msec[/size][/align]
[align=left][size=12pt]
12.1.1.2 48 msec *[/size][/align]
[align=left][b][font=宋体][size=12pt]总结：[/size][/font][/b][b][size=12pt][/size][/b][/align]
[align=left][size=12pt]IS-IS[/size][font=宋体][size=12pt]选路基本过程：[/size][/font][size=12pt] [/size][/align]
[align=left][font=宋体][size=12pt]１、到外部区域：Ｌ１先选到最近的Ｌ１／Ｌ２[/size][/font][size=12pt] [/size][/align]
[align=left][font=宋体][size=12pt]２、[/size][/font][size=12pt]L1/L2[/size][font=宋体][size=12pt]路由器根据[/size][/font][size=12pt]L2[/size][font=宋体][size=12pt]拓扑数据库选路[/size][/font][b][font=宋体][size=9pt][/size][/font][/b][/align]
[/td][/tr][/table]
天使之亦 2007-12-4 13:15
偶路过 ............:loveliness:
