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Table of Contents Expand all

play_arrow Overview
- play_arrow Introduction to IS-IS
play_arrow Configuring IS-IS
play_arrow Monitoring and Troubleshooting Network Issues
- play_arrow Monitoring Networks
- play_arrow Troubleshooting Network Issues
- play_arrow Troubleshooting IS-IS
play_arrow Configuration Statements and Operational Commands
- Junos CLI Reference Overview

list Table of Contents

English

Example: Configuring IS-IS Multicast Topology

date_range 24-Nov-23

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This example shows how to configure a multicast topology for an IS-IS network.

CLI Quick Configuration

To quickly configure this example, copy the following commands, paste them into a text file, remove any line breaks, change any details necessary to match your network configuration, and then copy and paste the commands into the CLI at the [edit] hierarchy level.

Router R1

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set protocols isis traceoptions file isis size 5m world-readable
set protocols isis traceoptions flag error
set protocols isis topologies ipv4-multicast
set protocols isis interface so-0/0/0 level 1 metric 15
set protocols isis interface so-0/0/0 level 1 ipv4-multicast-metric 18
set protocols isis interface so-0/0/0 level 2 metric 20
set protocols isis interface so-0/0/0 level 2 ipv4-multicast-metric 14
set protocols isis interface so-1/0/0 level 1 metric 13
set protocols isis interface so-1/0/0 level 1 ipv4-multicast-metric 12
set protocols isis interface so-1/0/0 level 2 metric 29
set protocols isis interface so-1/0/0 level 2 ipv4-multicast-metric 23
set protocols isis interface fxp0.0 disable

Router R2

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set protocols isis traceoptions file isis size 5m world-readable
set protocols isis traceoptions flag error
set protocols isis topologies ipv4-multicast
set protocols isis interface so-0/0/0 level 1 metric 13
set protocols isis interface so-0/0/0 level 1 ipv4-multicast-metric 12
set protocols isis interface so-0/0/0 level 2 metric 29
set protocols isis interface so-0/0/0 level 2 ipv4-multicast-metric 23
set protocols isis interface so-1/0/0 level 1 metric 14
set protocols isis interface so-1/0/0 level 1 ipv4-multicast-metric 18
set protocols isis interface so-1/0/0 level 2 metric 32
set protocols isis interface so-1/0/0 level 2 ipv4-multicast-metric 26
set protocols isis interface fxp0.0 disable

Router R3

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set protocols isis traceoptions file isis size 5m world-readable
set protocols isis traceoptions flag error
set protocols isis topologies ipv4-multicast
set protocols isis interface so-0/0/0 level 1 metric 19
set protocols isis interface so-0/0/0 level 1 ipv4-multicast-metric 11
set protocols isis interface so-0/0/0 level 2 metric 27
set protocols isis interface so-0/0/0 level 2 ipv4-multicast-metric 21
set protocols isis interface so-1/0/0 level 1 metric 16
set protocols isis interface so-1/0/0 level 1 ipv4-multicast-metric 26
set protocols isis interface so-1/0/0 level 2 metric 30
set protocols isis interface so-1/0/0 level 2 ipv4-multicast-metric 20
set protocols isis interface fxp0.0 disable

Step-by-Step Procedure

The following example requires you to navigate various levels in the configuration hierarchy. For information about navigating the CLI, see Using the CLI Editor in Configuration Mode in the CLI User Guide.

To configure IS-IS multicast topologies:

Enable the multicast topology for IS-IS by using the ipv4-multicast statement.

Routers R1, R2, and R3

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[edit protocols isis]
user@host# set traceoptions file isis size 5m world-readable
user@host# set traceoptions flag error
user@host# set topologies ipv4-multicast

Enable multicast metrics on the first SONET/SDH Interface by using the ipv4-multicast-metric statement.

Router R1

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[edit protocols isis interface so-0/0/0 ]
user@R1# set level 1 metric 15
user@R1# set level 1 ipv4-multicast-metric 18
user@R1# set level 2 metric 20
user@R1# set level 2 ipv4-multicast-metric 14

Router R2

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[edit protocols isis interface so-0/0/0]
user@R2# set level 1 metric 13
user@R2# set level 1 ipv4-multicast-metric 12
user@R2# set level 2 metric 29
user@R2# set level 2 ipv4-multicast-metric 23

Router R3

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[edit protocols isis interface so-0/0/0]
user@R3# set level 1 metric 19
user@R3# set level 1 ipv4-multicast-metric 11
user@R3# set level 2 metric 27
user@R3# set level 2 ipv4-multicast-metric 21

Enable multicast metrics on a second sonet Interface by using the ipv4-multicast-metric statement.

Router R1

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[edit protocols isis interface so-1/0/0]
user@R1# set level 1 metric 13
user@R1# set level 1 ipv4-multicast-metric 12
user@R1# set level 2 metric 29
user@R1# set level 2 ipv4-multicast-metric 23

Router R2

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[edit protocols isis interface so-1/0/0]
user@R2# set level 1 metric 14
user@R2# set level 1 ipv4-multicast-metric 18
user@R2# set level 2 metric 32
user@R2# set level 2 ipv4-multicast-metric 26

Router R3

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[edit protocols isis interface so-1/0/0]
user@R3# set level 1 metric 16
user@R3# set level 1 ipv4-multicast-metric 26
user@R3# set level 2 metric 30
user@R3# set level 2 ipv4-multicast-metric 20

Disable the out-of-band management port, fxp0.

Routers R1, R2, and R3
```
[edit protocols isis]
user@host# set interface fxp0.0 disable
```
If you are done configuring the routers, commit the configuration.

Routers R1, R2, and R3
```
[edit]
user@host# commit
```

Results

From configuration mode, confirm your configuration by using the show protocols isis statement. If the output does not display the intended configuration, repeat the instructions in this example to correct the configuration.

Router R1

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user@R1# show protocols isis

traceoptions {
    file isis size 5m world-readable;
    flag error;
}
topologies ipv4-multicast;
interface so-0/0/0 {
    level 1 {
        metric 15;
        ipv4-multicast-metric 18;
    }
    level 2 {
        metric 20;
        ipv4-multicast-metric 14;
    }
}
interface so-1/0/0 {
    level 1 {
        metric 13;
        ipv4-multicast-metric 12;
    }
    level 2 {
        metric 29;
        ipv4-multicast-metric 23;
    }
}
interface fxp0.0 {
    disable;
}

Router R2

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user@R2# show protocols isis

traceoptions {
    file isis size 5m world-readable;
    flag error;
}
topologies ipv4-multicast;
interface so-0/0/0 {
    level 1 {
        metric 13;
        ipv4-multicast-metric 12;
    }
    level 2 {
        metric 29;
        ipv4-multicast-metric 23;
    }
}
interface so-1/0/0 {
    level 1 {
        metric 14;
        ipv4-multicast-metric 18;
    }
    level 2 {
        metric 32;
        ipv4-multicast-metric 26;
    }
}
interface fxp0.0 {
    disable;
}

Router R3

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user@R3# show protocols isis

traceoptions {
    file isis size 5m world-readable;
    flag error;
}
topologies ipv4-multicast;
interface so-0/0/0 {
    level 1 {
        metric 19;
        ipv4-multicast-metric 11;
    }
    level 2 {
        metric 27;
        ipv4-multicast-metric 21;
    }
}
interface so-1/0/0 {
    level 1 {
        metric 16;
        ipv4-multicast-metric 26;
    }
    level 2 {
        metric 30;
        ipv4-multicast-metric 20;
    }
}
interface fxp0.0 {
    disable;
}

Requirements

Before you begin, configure IS-IS on all routers. See Example: Configuring IS-IS for information about the required IS-IS configuration.

This example uses the following hardware and software components:

Junos OS Release 7.3 or later
M Series, MX Series, and T Series routers

Overview

This example shows an IS-IS multicast topology configuration. Three routers are connected to each other. A loopback interface is configured on each router.

Topology

Figure 1 shows the sample network.

Figure 1: Configuring IS-IS Multicast Topology

Verification

Confirm that the configuration is working properly.

Verifying the Connection Between Routers R1, R2, and R3
Verifying That IS-IS Is Configured
Verifying the Configured Multicast Metric Values
Verifying the Configuration of the Multicast Topology

Verifying the Connection Between Routers R1, R2, and R3

Purpose
Action
Meaning

Purpose

Make sure that Routers R1, R2, and R3 are connected to each other.

Action

Ping the other two routers from any router, to check the connectivity between the three routers as per the network topology.

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user@R1> ping 10.0.3.9  

PING 10.0.3.9 (10.0.3.9): 56 data bytes
64 bytes from 10.0.3.9: icmp_seq=0 ttl=64 time=1.299 ms
64 bytes from 10.0.3.9: icmp_seq=1 ttl=64 time=52.304 ms
64 bytes from 10.0.3.9: icmp_seq=2 ttl=64 time=1.271 ms
64 bytes from 10.0.3.9: icmp_seq=3 ttl=64 time=1.343 ms
64 bytes from 10.0.3.9: icmp_seq=4 ttl=64 time=1.434 ms
64 bytes from 10.0.3.9: icmp_seq=5 ttl=64 time=1.306 ms
^C
--- 10.0.3.9 ping statistics ---
6 packets transmitted, 6 packets received, 0% packet loss
round-trip min/avg/max/stddev = 1.271/9.826/52.304/18.997 ms

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user@R1> ping 10.0.3.10 

PING 10.0.3.10 (10.0.3.10): 56 data bytes
64 bytes from 10.0.3.10: icmp_seq=0 ttl=64 time=1.431 ms
64 bytes from 10.0.3.10: icmp_seq=1 ttl=64 time=1.296 ms
64 bytes from 10.0.3.10: icmp_seq=2 ttl=64 time=1.887 ms
^C
--- 10.0.3.10 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max/stddev = 1.296/1.538/1.887/0.253 ms

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user@R2> ping 10.0.2.9 

PING 10.0.2.9 (10.0.2.9): 56 data bytes
64 bytes from 10.0.2.9: icmp_seq=0 ttl=64 time=1.365 ms
64 bytes from 10.0.2.9: icmp_seq=1 ttl=64 time=1.813 ms
64 bytes from 10.0.2.9: icmp_seq=2 ttl=64 time=1.290 ms
^C
--- 10.0.2.9 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max/stddev = 1.290/1.489/1.813/0.231 ms

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user@R2> ping 10.0.2.10 

PING 10.0.2.10 (10.0.2.10): 56 data bytes
64 bytes from 10.0.2.10: icmp_seq=0 ttl=63 time=1.318 ms
64 bytes from 10.0.2.10: icmp_seq=1 ttl=63 time=1.394 ms
64 bytes from 10.0.2.10: icmp_seq=2 ttl=63 time=1.366 ms
64 bytes from 10.0.2.10: icmp_seq=3 ttl=63 time=1.305 ms
^C
--- 10.0.2.10 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max/stddev = 1.305/1.346/1.394/0.036 ms

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user@R3> ping 10.0.1.10 

PING 10.0.1.10 (10.0.1.10): 56 data bytes
64 bytes from 10.0.1.10: icmp_seq=0 ttl=63 time=1.316 ms
64 bytes from 10.0.1.10: icmp_seq=1 ttl=63 time=1.418 ms
64 bytes from 10.0.1.10: icmp_seq=2 ttl=63 time=1.277 ms
^C
--- 10.0.1.10 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max/stddev = 1.277/1.337/1.418/0.059 ms

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user@R3> ping 10.0.1.9 

PING 10.0.1.9 (10.0.1.9): 56 data bytes
64 bytes from 10.0.1.9: icmp_seq=0 ttl=64 time=1.381 ms
64 bytes from 10.0.1.9: icmp_seq=1 ttl=64 time=1.499 ms
64 bytes from 10.0.1.9: icmp_seq=2 ttl=64 time=1.300 ms
64 bytes from 10.0.1.9: icmp_seq=3 ttl=64 time=1.397 ms
^C
--- 10.0.1.9 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max/stddev = 1.300/1.394/1.499/0.071 ms

Meaning

Routers R1, R2, and R3 have a peer relationship with each other.

Verifying That IS-IS Is Configured

Purpose
Action
Meaning

Purpose

Make sure that the IS-IS instance is running on Routers R1, R2, and R3, and that they are adjacent to each other.

Action

Use the show isis adjacency detail command to check the adjacency between the routers.

Router R1

content_copy zoom_out_map
user@R1> show isis adjacency detail 

R2
  Interface: so-0/0/0, Level: 1, State: Up, Expires in 8 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:23:59 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bd
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R2.02, IP addresses: 10.0.1.10

R2
  Interface: so-0/0/0, Level: 2, State: Up, Expires in 8 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:23:58 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bd
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R2.02, IP addresses: 10.0.1.10

R3
  Interface: so-1/0/0, Level: 1, State: Up, Expires in 7 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:24:20 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bd
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R3.02, IP addresses: 10.0.2.10

R3
  Interface: so-1/0/0, Level: 2, State: Up, Expires in 6 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:24:20 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bd
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R3.02, IP addresses: 10.0.2.10

Router R2

content_copy zoom_out_map
user@R2> show isis adjacency detail 

R1
  Interface: so-0/0/0, Level: 1, State: Up, Expires in 20 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:27:50 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bc
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R2.02, IP addresses: 10.0.1.9

R1
  Interface: so-0/0/0, Level: 2, State: Up, Expires in 26 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:27:50 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bc
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R2.02, IP addresses: 10.0.1.9

R3
  Interface: so-1/0/0, Level: 1, State: Up, Expires in 8 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:27:22 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bd
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R3.03, IP addresses: 10.0.3.10

R3
  Interface: so-1/0/0, Level: 2, State: Up, Expires in 8 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:27:22 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bd
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R3.03, IP addresses: 10.0.3.10

Router R3

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user@R3> show isis adjacency detail 

R2
  Interface: so-0/0/0, Level: 1, State: Up, Expires in 18 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:33:09 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bc
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R3.03, IP addresses: 10.0.3.9

R2
  Interface: so-0/0/0, Level: 2, State: Up, Expires in 22 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:33:09 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bc
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R3.03, IP addresses: 10.0.3.9

R1
  Interface: so-1/0/0, Level: 1, State: Up, Expires in 21 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:33:59 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bc
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R3.02, IP addresses: 10.0.2.9

R1
  Interface: so-1/0/0, Level: 2, State: Up, Expires in 19 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 2d 19:33:59 ago
  Circuit type: 3, Speaks: IP, MAC address: 0:1b:c0:86:54:bc
  Topologies: IPV4-Multicast
  Restart capable: Yes, Adjacency advertisement: Advertise
  LAN id: R3.02, IP addresses: 10.0.2.9

Meaning

IS-IS is configured on Routers R1, R2, and R3, and they are adjacent to each other.

Verifying the Configured Multicast Metric Values

Purpose
Action
Meaning

Purpose

Make sure that the SPF calculations are accurate as per the configured multicast metric values on Routers R1, R2, and R3.

Action

Use the show isis spf results command to check the SPF calculations for the network.

Router R1

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user@R1> show isis spf results 
...
IPV4 Multicast IS-IS level 1 SPF results:
Node   Metric     Interface      NH   Via   SNPA
R3.03  28         so-1/0/0       IPV4 R3    0:1b:c0:86:54:bd
R2.00  18         so-0/0/0       IPV4 R2    0:1b:c0:86:54:bd
R3.00  17         so-1/0/0       IPV4 R3    0:1b:c0:86:54:bd
R1.00  0
  4 nodes

IPV4 Multicast IS-IS level 2 SPF results:
Node   Metric     Interface      NH   Via   SNPA
R3.03  40         so-0/0/0       IPV4 R2    0:1b:c0:86:54:bd
R3.00  22         so-1/0/0       IPV4 R3    0:1b:c0:86:54:bd
R2.00  14         so-0/0/0       IPV4 R2    0:1b:c0:86:54:bd
R1.00  0
  4 nodes

Router R2

content_copy zoom_out_map
user@R2> show isis spf results 
...
IPV4 Multicast IS-IS level 1 SPF results:
Node   Metric     Interface      NH   Via   SNPA
R3.02  29         so-0/0/0       IPV4 R1    0:1b:c0:86:54:bc
R3.00  18         so-1/0/0       IPV4 R3    0:1b:c0:86:54:bd
R1.00  12         so-0/0/0       IPV4 R1    0:1b:c0:86:54:bc
R2.02  12
R2.00  0
  5 nodes

IPV4 Multicast IS-IS level 2 SPF results:
Node   Metric     Interface      NH   Via   SNPA
R3.02  45         so-0/0/0       IPV4 R1    0:1b:c0:86:54:bc
R3.00  26         so-1/0/0       IPV4 R3    0:1b:c0:86:54:bd
R1.00  23         so-0/0/0       IPV4 R1    0:1b:c0:86:54:bc
R2.02  23
R2.00  0
  5 nodes

Router R3

content_copy zoom_out_map
user@R3> show isis spf results 
...
IPV4 Multicast IS-IS level 1 SPF results:
Node   Metric     Interface      NH   Via   SNPA
R3.02  26
R1.00  23         so-0/0/0       IPV4 R2    0:1b:c0:86:54:bc
R2.02  23         so-0/0/0       IPV4 R2    0:1b:c0:86:54:bc
R2.00  11         so-0/0/0       IPV4 R2    0:1b:c0:86:54:bc
R3.03  11
R3.00  0
  6 nodes

IPV4 Multicast IS-IS level 2 SPF results:
Node   Metric     Interface      NH   Via   SNPA
R2.02  34         so-1/0/0       IPV4 R1    0:1b:c0:86:54:bc
R2.00  21         so-0/0/0       IPV4 R2    0:1b:c0:86:54:bc
R3.03  21
R1.00  20         so-1/0/0       IPV4 R1    0:1b:c0:86:54:bc
R3.02  20
R3.00  0
  6 nodes

Meaning

The configured multicast metric values are used in SPF calculations for the IS-IS network.

Verifying the Configuration of the Multicast Topology

Purpose
Action
Meaning

Purpose

Make sure that the multicast topology is configured on Routers R1, R2, and R3.

Action

Use the show isis database detail command to verify the multicast topology configuration on the routers.

Router R1

content_copy zoom_out_map
user@R1> show isis database detail 

IS-IS level 1 link-state database:

R1.00-00 Sequence: 0x142, Checksum: 0xd07, Lifetime: 663 secs
   IPV4 Unicast IS neighbor: R2.02  	Metric:       15
   IPV4 Unicast IS neighbor: R3.02  	Metric:       15
   IPV4 Multicast IS neighbor: R2.02 	Metric:       18
   IPV4 Multicast IS neighbor: R3.02 	Metric:       17
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       15 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       15 Internal Up

R2.00-00 Sequence: 0x13f, Checksum: 0xf02b, Lifetime: 883 secs
   IPV4 Unicast IS neighbor: R2.02  	Metric:       13
   IPV4 Unicast IS neighbor: R3.03  	Metric:       14
   IPV4 Multicast IS neighbor: R2.02 	Metric:       12
   IPV4 Multicast IS neighbor: R3.03 	Metric:       18
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       13 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       14 Internal Up

R2.02-00 Sequence: 0x13c, Checksum: 0x57e2, Lifetime: 913 secs
   IPV4 Unicast IS neighbor: R1.00  	Metric:        0
   IPV4 Unicast IS neighbor: R2.00  	Metric:        0

R3.00-00 Sequence: 0x13c, Checksum: 0xc8de, Lifetime: 488 secs
   IPV4 Unicast IS neighbor: R3.02  	Metric:       16
   IPV4 Unicast IS neighbor: R3.03  	Metric:       19
   IPV4 Multicast IS neighbor: R3.02 	Metric:       26
   IPV4 Multicast IS neighbor: R3.03 	Metric:       11
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       16 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       19 Internal Up

R3.02-00 Sequence: 0x139, Checksum: 0xfb0e, Lifetime: 625 secs
   IPV4 Unicast IS neighbor: R1.00  	Metric:        0
   IPV4 Unicast IS neighbor: R3.00  	Metric:        0

R3.03-00 Sequence: 0x138, Checksum: 0xad56, Lifetime: 714 secs
   IPV4 Unicast IS neighbor: R2.00  	Metric:        0
   IPV4 Unicast IS neighbor: R3.00  	Metric:        0

IS-IS level 2 link-state database:

R1.00-00 Sequence: 0x142, Checksum: 0x2c7c, Lifetime: 816 secs
   IPV4 Unicast IS neighbor: R2.02  	Metric:       20
   IPV4 Unicast IS neighbor: R3.02  	Metric:       31
   IPV4 Multicast IS neighbor: R2.02 	Metric:       14
   IPV4 Multicast IS neighbor: R3.02 	Metric:       22
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       20 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       31 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       29 Internal Up

R2.00-00 Sequence: 0x13f, Checksum: 0x4826, Lifetime: 966 secs
   IPV4 Unicast IS neighbor: R2.02  	Metric:       29
   IPV4 Unicast IS neighbor: R3.03  	Metric:       32
   IPV4 Multicast IS neighbor: R2.02 	Metric:       23
   IPV4 Multicast IS neighbor: R3.03 	Metric:       26
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       29 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       28 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       32 Internal Up
                                        
R2.02-00 Sequence: 0x13c, Checksum: 0x57e2, Lifetime: 966 secs
   IPV4 Unicast IS neighbor: R1.00  	Metric:        0
   IPV4 Unicast IS neighbor: R2.00  	Metric:        0
                                        
R3.00-00 Sequence: 0x13d, Checksum: 0x1b19, Lifetime: 805 secs
   IPV4 Unicast IS neighbor: R3.02  	Metric:       30
   IPV4 Unicast IS neighbor: R3.03  	Metric:       27
   IPV4 Multicast IS neighbor: R3.02 	Metric:       20
   IPV4 Multicast IS neighbor: R3.03 	Metric:       21
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       31 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       30 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       27 Internal Up
                                        
R3.02-00 Sequence: 0x139, Checksum: 0xfb0e, Lifetime: 844 secs
   IPV4 Unicast IS neighbor: R1.00  	Metric:        0
   IPV4 Unicast IS neighbor: R3.00  	Metric:        0
                                        
R3.03-00 Sequence: 0x139, Checksum: 0xab57, Lifetime: 844 secs
   IPV4 Unicast IS neighbor: R2.00  	Metric:        0
   IPV4 Unicast IS neighbor: R3.00  	Metric:        0

Router R2

content_copy zoom_out_map
user@R2> show isis database detail 

IS-IS level 1 link-state database:

R1.00-00 Sequence: 0x142, Checksum: 0xd07, Lifetime: 524 secs
   IPV4 Unicast IS neighbor: R2.02  		Metric:       15
   IPV4 Unicast IS neighbor: R3.02  		Metric:       15
   IPV4 Multicast IS neighbor: R2.02 		Metric:       18
   IPV4 Multicast IS neighbor: R3.02 		Metric:       17
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       15 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       15 Internal Up

R2.00-00 Sequence: 0x13f, Checksum: 0xf02b, Lifetime: 748 secs
   IPV4 Unicast IS neighbor: R2.02  		Metric:       13
   IPV4 Unicast IS neighbor: R3.03  		Metric:       14
   IPV4 Multicast IS neighbor: R2.02 		Metric:       12
   IPV4 Multicast IS neighbor: R3.03 		Metric:       18
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       13 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       14 Internal Up

R2.02-00 Sequence: 0x13c, Checksum: 0x57e2, Lifetime: 777 secs
   IPV4 Unicast IS neighbor: R1.00  	Metric:        0
   IPV4 Unicast IS neighbor: R2.00  	Metric:        0

R3.00-00 Sequence: 0x13d, Checksum: 0xc6df, Lifetime: 1102 secs
   IPV4 Unicast IS neighbor: R3.02  		Metric:       16
   IPV4 Unicast IS neighbor: R3.03  		Metric:       19
   IPV4 Multicast IS neighbor: R3.02 		Metric:       26
   IPV4 Multicast IS neighbor: R3.03 		Metric:       11
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       16 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       19 Internal Up

R3.02-00 Sequence: 0x139, Checksum: 0xfb0e, Lifetime: 488 secs
   IPV4 Unicast IS neighbor: R1.00  		Metric:        0
   IPV4 Unicast IS neighbor: R3.00  		Metric:        0

R3.03-00 Sequence: 0x138, Checksum: 0xad56, Lifetime: 577 secs
   IPV4 Unicast IS neighbor: R2.00  		Metric:        0
   IPV4 Unicast IS neighbor: R3.00  		Metric:        0

IS-IS level 2 link-state database:

R1.00-00 Sequence: 0x142, Checksum: 0x2c7c, Lifetime: 676 secs
   IPV4 Unicast IS neighbor: R2.02  		Metric:       20
   IPV4 Unicast IS neighbor: R3.02  		Metric:       31
   IPV4 Multicast IS neighbor: R2.02 		Metric:       14
   IPV4 Multicast IS neighbor: R3.02 		Metric:       22
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       20 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       31 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       29 Internal Up

R2.00-00 Sequence: 0x13f, Checksum: 0x4826, Lifetime: 831 secs
   IPV4 Unicast IS neighbor: R2.02  		Metric:       29
   IPV4 Unicast IS neighbor: R3.03  		Metric:       32
   IPV4 Multicast IS neighbor: R2.02 		Metric:       23
   IPV4 Multicast IS neighbor: R3.03 		Metric:       26
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       29 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       28 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       32 Internal Up
                                        
R2.02-00 Sequence: 0x13c, Checksum: 0x57e2, Lifetime: 831 secs
   IPV4 Unicast IS neighbor: R1.00  		Metric:        0
   IPV4 Unicast IS neighbor: R2.00  		Metric:        0
                                        
R3.00-00 Sequence: 0x13d, Checksum: 0x1b19, Lifetime: 667 secs
   IPV4 Unicast IS neighbor: R3.02  		Metric:       30
   IPV4 Unicast IS neighbor: R3.03  		Metric:       27
   IPV4 Multicast IS neighbor: R3.02 		Metric:       20
   IPV4 Multicast IS neighbor: R3.03 		Metric:       21
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       31 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       30 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       27 Internal Up
                                        
R3.02-00 Sequence: 0x139, Checksum: 0xfb0e, Lifetime: 707 secs
   IPV4 Unicast IS neighbor: R1.00  		Metric:        0
   IPV4 Unicast IS neighbor: R3.00  		Metric:        0
                                        
R3.03-00 Sequence: 0x139, Checksum: 0xab57, Lifetime: 707 secs
   IPV4 Unicast IS neighbor: R2.00  		Metric:        0
   IPV4 Unicast IS neighbor: R3.00  		Metric:        0

Router R3

content_copy zoom_out_map
user@R3> show isis database detail 

IS-IS level 1 link-state database:

R1.00-00 Sequence: 0x143, Checksum: 0xb08, Lifetime: 1155 secs
   IPV4 Unicast IS neighbor: R2.02  		Metric:       15
   IPV4 Unicast IS neighbor: R3.02  		Metric:       15
   IPV4 Multicast IS neighbor: R2.02 		Metric:       18
   IPV4 Multicast IS neighbor: R3.02 		Metric:       17
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       15 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       15 Internal Up

R2.00-00 Sequence: 0x13f, Checksum: 0xf02b, Lifetime: 687 secs
   IPV4 Unicast IS neighbor: R2.02  		Metric:       13
   IPV4 Unicast IS neighbor: R3.03  		Metric:       14
   IPV4 Multicast IS neighbor: R2.02 		Metric:       12
   IPV4 Multicast IS neighbor: R3.03 		Metric:       18
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       13 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       14 Internal Up

R2.02-00 Sequence: 0x13c, Checksum: 0x57e2, Lifetime: 716 secs
   IPV4 Unicast IS neighbor: R1.00  	Metric:        0
   IPV4 Unicast IS neighbor: R2.00  	Metric:        0

R3.00-00 Sequence: 0x13d, Checksum: 0xc6df, Lifetime: 1044 secs
   IPV4 Unicast IS neighbor: R3.02  		Metric:       16
   IPV4 Unicast IS neighbor: R3.03  		Metric:       19
   IPV4 Multicast IS neighbor: R3.02 		Metric:       26
   IPV4 Multicast IS neighbor: R3.03 		Metric:       11
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       16 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       19 Internal Up

R3.02-00 Sequence: 0x139, Checksum: 0xfb0e, Lifetime: 430 secs
   IPV4 Unicast IS neighbor: R1.00  		Metric:        0
   IPV4 Unicast IS neighbor: R3.00  		Metric:        0

R3.03-00 Sequence: 0x138, Checksum: 0xad56, Lifetime: 519 secs
   IPV4 Unicast IS neighbor: R2.00  		Metric:        0
   IPV4 Unicast IS neighbor: R3.00  		Metric:        0

IS-IS level 2 link-state database:

R1.00-00 Sequence: 0x142, Checksum: 0x2c7c, Lifetime: 617 secs
   IPV4 Unicast IS neighbor: R2.02  		Metric:       20
   IPV4 Unicast IS neighbor: R3.02  		Metric:       31
   IPV4 Multicast IS neighbor: R2.02 		Metric:       14
   IPV4 Multicast IS neighbor: R3.02 		Metric:       22
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       20 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       31 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       29 Internal Up

R2.00-00 Sequence: 0x13f, Checksum: 0x4826, Lifetime: 769 secs
   IPV4 Unicast IS neighbor: R2.02  		Metric:       29
   IPV4 Unicast IS neighbor: R3.03  		Metric:       32
   IPV4 Multicast IS neighbor: R2.02 		Metric:       23
   IPV4 Multicast IS neighbor: R3.03 		Metric:       26
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       29 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       28 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       32 Internal Up
                                        
R2.02-00 Sequence: 0x13c, Checksum: 0x57e2, Lifetime: 769 secs
   IPV4 Unicast IS neighbor: R1.00  		Metric:        0
   IPV4 Unicast IS neighbor: R2.00  		Metric:        0
                                        
R3.00-00 Sequence: 0x13d, Checksum: 0x1b19, Lifetime: 610 secs
   IPV4 Unicast IS neighbor: R3.02  		Metric:       30
   IPV4 Unicast IS neighbor: R3.03  		Metric:       27
   IPV4 Multicast IS neighbor: R3.02 		Metric:       20
   IPV4 Multicast IS neighbor: R3.03 		Metric:       21
   IP IPV4 Unicast prefix: 10.0.1.8/30  Metric:       31 Internal Up
   IP IPV4 Unicast prefix: 10.0.2.8/30  Metric:       30 Internal Up
   IP IPV4 Unicast prefix: 10.0.3.8/30  Metric:       27 Internal Up
                                        
R3.02-00 Sequence: 0x139, Checksum: 0xfb0e, Lifetime: 649 secs
   IPV4 Unicast IS neighbor: R1.00  		Metric:        0
   IPV4 Unicast IS neighbor: R3.00  		Metric:        0
                                        
R3.03-00 Sequence: 0x139, Checksum: 0xab57, Lifetime: 649 secs
   IPV4 Unicast IS neighbor: R2.00  		Metric:        0
   IPV4 Unicast IS neighbor: R3.00  		Metric:        0

Meaning

Multicast topology is configured on Routers R1, R2, and R3.

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IS-IS User Guide

ON THIS PAGE

Example: Configuring IS-IS Multicast Topology

Configuration

CLI Quick Configuration

Step-by-Step Procedure

Results

Requirements

Overview

Topology

Verification

Verifying the Connection Between Routers R1, R2, and R3

Purpose

Action

Meaning

Verifying That IS-IS Is Configured

Purpose

Action

Meaning

Verifying the Configured Multicast Metric Values

Purpose

Action

Meaning

Verifying the Configuration of the Multicast Topology

Purpose

Action

Meaning

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IS-IS User Guide

ON THIS PAGE

Example: Configuring IS-IS Multicast Topology

Configuration

CLI Quick Configuration

Step-by-Step Procedure

Results

Requirements

Overview

Topology

Verification

Verifying the Connection Between Routers R1, R2, and R3

Purpose

Action

Meaning

Verifying That IS-IS Is Configured

Purpose

Action

Meaning

Verifying the Configured Multicast Metric Values

Purpose

Action

Meaning

Verifying the Configuration of the Multicast Topology

Purpose

Action

Meaning

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