示例：在同一路由器内的逻辑系统上配置 IS-IS
此示例说明如何使用在单个物理路由器上运行的多个逻辑系统来配置 IS-IS 网络。逻辑系统通过逻辑隧道接口进行连接。
要求
您必须使用逻辑隧道 （lt） 接口连接逻辑系统。请参阅 示例：使用 MX 系列路由器和 EX 系列交换机上的逻辑隧道接口连接同一设备内的逻辑系统。
概述
此示例显示了在一台物理路由器上运行三个逻辑系统的 IS-IS 配置。每个逻辑系统都有自己的路由表。此配置可在参与 IS-IS 域的所有逻辑隧道接口上启用该协议。
配置
CLI 快速配置
要快速配置此示例，请复制以下命令，将其粘贴到文本文件中，删除所有换行符，更改详细信息，以便与网络配置匹配，将命令复制并粘贴到层 [edit] 级的 CLI 中，然后从配置模式进入提交。
set logical-systems LS1 interfaces lt-0/1/0 unit 2 description LS1->LS2 set logical-systems LS1 interfaces lt-0/1/0 unit 2 encapsulation ethernet set logical-systems LS1 interfaces lt-0/1/0 unit 2 peer-unit 1 set logical-systems LS1 interfaces lt-0/1/0 unit 2 family inet address 10.0.0.1/30 set logical-systems LS1 interfaces lt-0/1/0 unit 2 family iso set logical-systems LS1 interfaces lt-0/1/0 unit 0 description LS1->LS3 set logical-systems LS1 interfaces lt-0/1/0 unit 0 encapsulation ethernet set logical-systems LS1 interfaces lt-0/1/0 unit 0 peer-unit 5 set logical-systems LS1 interfaces lt-0/1/0 unit 0 family inet address 10.0.1.2/30 set logical-systems LS1 interfaces lt-0/1/0 unit 0 family iso set logical-systems LS1 interfaces lo0 unit 1 family iso address 49.0001.1720.1600.1001.00 set logical-systems LS1 protocols isis interface lt-0/1/0.0 set logical-systems LS1 protocols isis interface lt-0/1/0.2 set logical-systems LS1 protocols isis interface lo0.1 passive set logical-systems LS2 interfaces lt-0/1/0 unit 1 description LS2->LS1 set logical-systems LS2 interfaces lt-0/1/0 unit 1 encapsulation ethernet set logical-systems LS2 interfaces lt-0/1/0 unit 1 peer-unit 2 set logical-systems LS2 interfaces lt-0/1/0 unit 1 family inet address 10.0.0.2/30 set logical-systems LS2 interfaces lt-0/1/0 unit 1 family iso set logical-systems LS2 interfaces lt-0/1/0 unit 4 description LS2->LS3 set logical-systems LS2 interfaces lt-0/1/0 unit 4 encapsulation ethernet set logical-systems LS2 interfaces lt-0/1/0 unit 4 peer-unit 3 set logical-systems LS2 interfaces lt-0/1/0 unit 4 family inet address 10.0.2.2/30 set logical-systems LS2 interfaces lt-0/1/0 unit 4 family iso set logical-systems LS2 interfaces lo0 unit 2 family iso address 49.0001.1720.1600.2002.00 set logical-systems LS2 protocols isis interface lt-0/1/0.1 set logical-systems LS2 protocols isis interface lt-0/1/0.4 set logical-systems LS2 protocols isis interface lo0.2 passive set logical-systems LS3 interfaces lt-0/1/0 unit 3 description LS3->LS2 set logical-systems LS3 interfaces lt-0/1/0 unit 3 encapsulation ethernet set logical-systems LS3 interfaces lt-0/1/0 unit 3 peer-unit 4 set logical-systems LS3 interfaces lt-0/1/0 unit 3 family inet address 10.0.2.1/30 set logical-systems LS3 interfaces lt-0/1/0 unit 3 family iso set logical-systems LS3 interfaces lt-0/1/0 unit 5 description LS3->LS1 set logical-systems LS3 interfaces lt-0/1/0 unit 5 encapsulation ethernet set logical-systems LS3 interfaces lt-0/1/0 unit 5 peer-unit 0 set logical-systems LS3 interfaces lt-0/1/0 unit 5 family inet address 10.0.1.1/30 set logical-systems LS3 interfaces lt-0/1/0 unit 5 family iso set logical-systems LS3 interfaces lo0 unit 3 family iso address 49.0001.1234.1600.2231.00 set logical-systems LS3 protocols isis interface lt-0/1/0.5 set logical-systems LS3 protocols isis interface lt-0/1/0.3 set logical-systems LS3 protocols isis interface lo0.3 passive
程序
分步过程
下面的示例要求您在各个配置层级中进行导航。有关 CLI 导航的信息，请参阅 CLI 用户指南中的在配置模式下使用 CLI 编辑器。
要在逻辑系统上配置 IS-IS：
在连接到逻辑系统 LS2 的逻辑系统 LS1 上配置逻辑隧道接口。
[edit logical-systems LS1] user@host# set interfaces lt-0/1/0 unit 2 description LS1->LS2 user@host# set interfaces lt-0/1/0 unit 2 encapsulation ethernet user@host# set interfaces lt-0/1/0 unit 2 peer-unit 1 user@host# set interfaces lt-0/1/0 unit 2 family inet address 10.0.0.1/30 user@host# set interfaces lt-0/1/0 unit 2 family iso
在连接到逻辑系统 LS3 的逻辑系统 LS1 上配置逻辑隧道接口。
[edit logical-systems LS1] user@host# set interfaces lt-0/1/0 unit 0 description LS1->LS3 user@host# set interfaces lt-0/1/0 unit 0 encapsulation ethernet user@host# set interfaces lt-0/1/0 unit 0 peer-unit 5 user@host# set interfaces lt-0/1/0 unit 0 family inet address 10.0.1.2/30 user@host# set interfaces lt-0/1/0 unit 0 family iso
在连接到逻辑系统 LS1 的逻辑系统 LS2 上配置逻辑隧道接口。
[edit logical-systems LS2] user@host# set interfaces lt-0/1/0 unit 1 description LS2->LS1 user@host# set interfaces lt-0/1/0 unit 1 encapsulation ethernet user@host# set interfaces lt-0/1/0 unit 1 peer-unit 2 user@host# set interfaces lt-0/1/0 unit 1 family inet address 10.0.0.2/30 user@host# set interfaces lt-0/1/0 unit 1 family iso
在连接到逻辑系统 LS3 的逻辑系统 LS2 上配置逻辑隧道接口。
[edit logical-systems LS2] user@host# set interfaces lt-0/1/0 unit 4 description LS2->LS3 user@host# set interfaces lt-0/1/0 unit 4 encapsulation ethernet user@host# set interfaces lt-0/1/0 unit 4 peer-unit 3 user@host# set interfaces lt-0/1/0 unit 4 family inet address 10.0.2.2/30 user@host# set interfaces lt-0/1/0 unit 4 family iso
在连接到逻辑系统 LS2 的逻辑系统 LS3 上配置逻辑隧道接口。
[edit logical-systems LS3] user@host# set interfaces lt-0/1/0 unit 3 description LS3->LS2 user@host# set interfaces lt-0/1/0 unit 3 encapsulation ethernet user@host# set interfaces lt-0/1/0 unit 3 peer-unit 4 user@host# set interfaces lt-0/1/0 unit 3 family inet address 10.0.2.1/30 user@host# set interfaces lt-0/1/0 unit 3 family iso
在连接到逻辑系统 LS1 的逻辑系统 LS3 上配置逻辑隧道接口。
[edit logical-systems LS3] user@host# set interfaces lt-0/1/0 unit 5 description LS3->LS1 user@host# set interfaces lt-0/1/0 unit 5 encapsulation ethernet user@host# set interfaces lt-0/1/0 unit 5 peer-unit 0 user@host# set interfaces lt-0/1/0 unit 5 family inet address 10.0.1.1/30 user@host# set interfaces lt-0/1/0 unit 5 family iso
在环路接口上为三个逻辑系统配置 ISO 地址。
[edit logical-systems LS1] user@host# set interfaces lo0 unit 1 family iso address 49.0001.1720.1600.1001.00 user@host# set protocols isis interface lo0.1 passive
[edit logical-systems LS2] user@host# set interfaces lo0 unit 2 family iso address 49.0001.1720.1600.2002.00 user@host# set protocols isis interface lo0.2 passive
[edit logical-systems LS3] user@host# set interfaces lo0 unit 3 family iso address 49.0001.1234.1600.2231.00 user@host# set protocols isis interface lo0.3 passive
在所有接口上配置 IS-IS。
[edit logical-systems LS1 protocols isis] user@host# set interface lt-0/1/0.0 user@host# set interface lt-0/1/0.2
[edit logical-systems LS2 protocols isis] user@host# set interface lt-0/1/0.1 user@host# set interface lt-0/1/0.4
[edit logical-systems LS3 protocols isis] user@host# set interface lt-0/1/0.5 user@host# set interface lt-0/1/0.3
如果完成设备配置，请提交配置。
[edit] user@host# commit
结果
在配置模式下，发出 show logical-systems 命令以确认您的配置。如果输出未显示预期的配置，请重复此示例中的说明以更正配置。
user@host# show logical-systems
LS1 {
interfaces {
lt-0/1/0 {
unit 0 {
description LS1->LS3;
encapsulation ethernet;
peer-unit 5;
family inet {
address 10.0.1.2/30;
}
family iso;
}
unit 2 {
description LS1->LS2;
encapsulation ethernet;
peer-unit 1;
family inet {
address 10.0.0.1/30;
}
family iso;
}
}
lo0 {
unit 1 {
family iso {
address 49.0001.1720.1600.1001.00;
}
}
}
}
protocols {
isis {
interface lt-0/1/0.0;
interface lt-0/1/0.2;
interface lo0.1 {
passive;
}
}
}
}
LS2 {
interfaces {
lt-0/1/0 {
unit 1 {
description LS2->LS1;
encapsulation ethernet;
peer-unit 2;
family inet {
address 10.0.0.2/30;
}
family iso;
}
unit 4 {
description LS2->LS3;
encapsulation ethernet;
peer-unit 3;
family inet {
address 10.0.2.2/30;
}
family iso;
}
}
lo0 {
unit 2 {
family iso {
address 49.0001.1720.1600.2002.00;
}
}
}
}
protocols {
isis {
interface lt-0/1/0.1;
interface lt-0/1/0.4;
interface lo0.2 {
passive;
}
}
}
}
LS3 {
interfaces {
lt-0/1/0 {
unit 3 {
description LS3->LS2;
encapsulation ethernet;
peer-unit 4;
family inet {
address 10.0.2.1/30;
}
family iso;
}
unit 5 {
description LS3->LS1;
encapsulation ethernet;
peer-unit 0;
family inet {
address 10.0.1.1/30;
}
family iso;
}
}
lo0 {
unit 3 {
family iso {
address 49.0001.1234.1600.2231.00;
}
}
}
}
protocols {
isis {
interface lt-0/1/0.3;
interface lt-0/1/0.5;
interface lo0.3 {
passive;
}
}
}
}
验证
确认配置工作正常。
验证逻辑系统是否已启动
目的
请确保接口配置正确。
行动
user@host> show interfaces terse
Interface Admin Link Proto Local Remote
...
lt-0/1/0 up up
lt-0/1/0.0 up up inet 10.0.1.2/30
iso
lt-0/1/0.1 up up inet 10.0.0.2/30
iso
lt-0/1/0.2 up up inet 10.0.0.1/30
iso
lt-0/1/0.3 up up inet 10.0.2.1/30
iso
lt-0/1/0.4 up up inet 10.0.2.2/30
iso
lt-0/1/0.5 up up inet 10.0.1.1/30
iso
...
验证逻辑系统之间的连通性
目的
请确保通过检查逻辑系统路由条目和 ping 逻辑系统来建立 IS-IS 邻接。
行动
user@host> show route logical-system LS1
inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
10.0.0.0/30 *[Direct/0] 3w0d 01:37:52
> via lt-0/1/0.2
10.0.0.1/32 *[Local/0] 3w0d 01:37:52
Local via lt-0/1/0.2
10.0.1.0/30 *[Direct/0] 3w0d 01:37:52
> via lt-0/1/0.0
10.0.1.2/32 *[Local/0] 3w0d 01:37:52
Local via lt-0/1/0.0
10.0.2.0/30 *[IS-IS/15] 3w0d 01:37:13, metric 20
> to 10.0.1.1 via lt-0/1/0.0
to 10.0.0.2 via lt-0/1/0.2
iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
49.0001.1720.1600.1001/72
*[Direct/0] 3w0d 01:37:52
> via lo0.1
user@host> show route logical-system LS2
inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
10.0.0.0/30 *[Direct/0] 3w0d 01:38:01
> via lt-0/1/0.1
10.0.0.2/32 *[Local/0] 3w0d 01:38:01
Local via lt-0/1/0.1
10.0.1.0/30 *[IS-IS/15] 3w0d 01:37:01, metric 20
to 10.0.0.1 via lt-0/1/0.1
> to 10.0.2.1 via lt-0/1/0.4
10.0.2.0/30 *[Direct/0] 3w0d 01:38:01
> via lt-0/1/0.4
10.0.2.2/32 *[Local/0] 3w0d 01:38:01
Local via lt-0/1/0.4
iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
49.0001.1720.1600.2002/72
*[Direct/0] 3w0d 01:38:01
> via lo0.2
user@host> show route logical-system LS3
inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
10.0.0.0/30 *[IS-IS/15] 3w0d 01:37:10, metric 20
to 10.0.2.2 via lt-0/1/0.3
> to 10.0.1.2 via lt-0/1/0.5
10.0.1.0/30 *[Direct/0] 3w0d 01:38:10
> via lt-0/1/0.5
10.0.1.1/32 *[Local/0] 3w0d 01:38:11
Local via lt-0/1/0.5
10.0.2.0/30 *[Direct/0] 3w0d 01:38:11
> via lt-0/1/0.3
10.0.2.1/32 *[Local/0] 3w0d 01:38:11
Local via lt-0/1/0.3
iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
49.0001.1234.1600.2231/72
*[Direct/0] 3w0d 01:38:11
> via lo0.3
从 LS1、Ping LS3
user@host> set cli logical-system LS1
user@host:LS1> ping 10.0.2.1 PING 10.0.2.1 (10.0.2.1): 56 data bytes 64 bytes from 10.0.2.1: icmp_seq=0 ttl=63 time=1.264 ms 64 bytes from 10.0.2.1: icmp_seq=1 ttl=63 time=1.189 ms 64 bytes from 10.0.2.1: icmp_seq=2 ttl=63 time=1.165 ms ^C --- 10.0.2.1 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max/stddev = 1.165/1.206/1.264/0.042 ms
从 LS3、Ping LS1
user@host> set cli logical-system LS3
user@host:LS3> ping 10.0.0.1 PING 10.0.0.1 (10.0.0.1): 56 data bytes 64 bytes from 10.0.0.1: icmp_seq=0 ttl=63 time=1.254 ms 64 bytes from 10.0.0.1: icmp_seq=1 ttl=63 time=1.210 ms ^C --- 10.0.0.1 ping statistics --- 2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max/stddev = 1.210/1.232/1.254/0.022 ms
从 LS1、Ping LS2
user@host> set cli logical-system LS1
user@host:LS1> ping 10.0.2.2 PING 10.0.2.2 (10.0.2.2): 56 data bytes 64 bytes from 10.0.2.2: icmp_seq=0 ttl=64 time=1.240 ms 64 bytes from 10.0.2.2: icmp_seq=1 ttl=64 time=1.204 ms 64 bytes from 10.0.2.2: icmp_seq=2 ttl=64 time=1.217 ms ^C --- 10.0.2.2 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max/stddev = 1.204/1.220/1.240/0.015 ms
从 LS2、Ping LS1
user@host> set cli logical-system LS2
user@host:LS2> ping 10.0.1.2 PING 10.0.1.2 (10.0.1.2): 56 data bytes 64 bytes from 10.0.1.2: icmp_seq=0 ttl=64 time=1.308 ms 64 bytes from 10.0.1.2: icmp_seq=1 ttl=64 time=1.235 ms ^C --- 10.0.1.2 ping statistics --- 2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max/stddev = 1.235/1.272/1.308/0.037 ms
从 LS2、Ping LS3
user@host> set cli logical-system LS2
user@host:LS2> ping 10.0.1.1 PING 10.0.1.1 (10.0.1.1): 56 data bytes 64 bytes from 10.0.1.1: icmp_seq=0 ttl=64 time=1.253 ms 64 bytes from 10.0.1.1: icmp_seq=1 ttl=64 time=1.194 ms 64 bytes from 10.0.1.1: icmp_seq=2 ttl=64 time=1.212 ms 64 bytes from 10.0.1.1: icmp_seq=3 ttl=64 time=1.221 ms 64 bytes from 10.0.1.1: icmp_seq=4 ttl=64 time=1.195 ms ^C --- 10.0.1.1 ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max/stddev = 1.194/1.215/1.253/0.022 ms
从 LS3、Ping LS2
user@host> set cli logical-system LS3
user@host:LS3> ping 10.0.0.2 PING 10.0.0.2 (10.0.0.2): 56 data bytes 64 bytes from 10.0.0.2: icmp_seq=0 ttl=64 time=1.240 ms 64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=1.217 ms ^C --- 10.0.0.2 ping statistics --- 2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max/stddev = 1.217/1.228/1.240/0.012 ms