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show isis spf

Syntax

show isis spf (brief | log | results)
<instance instance-name>
<level (1 | 2)>
<logical-system (all | logical-system-name)>
<topology (ipv4-multicast | ipv6-multicast | ipv6-unicast | unicast)>

Release Information

Command introduced before JUNOS Release 7.4.

Description

Display information about Intermediate System-to-Intermediate System (IS-IS) shortest-path-first (SPF) calculations.

Options

brief — Display an overview of SPF calculations.

log — Display the log of SPF calculations.

results — Display the results of SPF calculations.

instance instance instance-name — (Optional) Display SPF calculations for the specified routing instance.

level (1 | 2) — (Optional) Display SPF calculations for the specified IS-IS level.

logical-system (all | logical-system-name) — (Optional) Perform this operation on all logical systems or on a particular logical system.

topology (ipv4-multicast | ipv6-multicast | ipv6-unicast | unicast) — (Optional) Display SPF calculations for the specified topology only.

Required Privilege Level

view

List of Sample Output

show isis spf brief
show isis spf log
show isis spf results
show isis spf results (CLNS)

Output Fields

Table 72 describes the output fields for the show isis spf command. Output fields are listed in the approximate order in which they appear.

Table 72: show isis spf Output Fields

Field Name

Field Description

Node

System ID of a node.

Metric

Metric to the node.

Interface

Interface of the next hop.

Via

System ID of the next hop.

SNPA

Subnetwork point of attachment (MAC address of the next hop).

Start time

(log option only) Time that the SPF computation started.

Elapsed (secs)

(log option only) Length of time, in seconds, required to complete the SPF computation.

Count

(log option only) Number of times the SPF was triggered.

Reason

(log option only) Reason that the SPF computation was completed.

show isis spf brief

user@host> show isis spf brief logical-system ls1 
 IS-IS level 1 SPF results:
Node             Metric     Interface         Via             SNPA
scat.00          10         ge-1/1/0.0       scat            0:90:69:a6:48:9d
fix.02           10
fix.00           0
  3 nodes

 IS-IS level 2 SPF results:
Node             Metric     Interface         Via             SNPA
skag.00          20         gr-0/2/0.0       h             
skag.02          20         gr-0/2/0.0       h             
h.00             10         gr-0/2/0.0       h             
fix.00           0
  4 nodes

IPV6 Unicast IS-IS level 1 SPF results:
Node             Metric     Interface         Via             SNPA
scat.00          10         ge-1/1/0.0       scat            0:90:69:a6:48:9d
                            ge-1/1/0.0       scat            0:90:69:a6:48:9d
fix.02           10
fix.00           0
  3 nodes

IPV6 Unicast IS-IS level 2 SPF results:
Node             Metric     Interface         Via             SNPA
skag.00          20         gr-0/2/0.0       h             
                            gr-0/2/0.0       h             
skag.02          20         gr-0/2/0.0       h             
                            gr-0/2/0.0       h             
h.00             10         gr-0/2/0.0       h             
                            gr-0/2/0.0       h             
fix.00           0
  4 nodes

Multicast IS-IS level 1 SPF results:
Node             Metric     Interface         Via             SNPA
scat.00          10         ge-1/1/0.0       scat            0:90:69:a6:48:9d
fix.02           10
fix.00           0
  3 nodes

Multicast IS-IS level 2 SPF results:
Node             Metric     Interface         Via             SNPA
skag.00          20         gr-0/2/0.0       h             
skag.02          20         gr-0/2/0.0       h             
h.00             10         gr-0/2/0.0       h             
fix.00           0
  4 nodes

show isis spf log

user@host> show isis spf log logical-system lsl 
 IS-IS level 1 SPF log:
Start time          Elapsed (secs) Count Reason
Fri Oct 31 12:41:18        0.000069    1 Reconfig
Fri Oct 31 12:41:18        0.000107    3 Updated LSP fix.00-00
Fri Oct 31 12:41:18        0.000050    3 Address change on so-1/2/2.0
Fri Oct 31 12:41:23        0.000033    1 Updated LSP fix.00-00
Fri Oct 31 12:41:28        0.000178    5 New adjacency scat on ge-1/1/0.0
Fri Oct 31 12:41:59        0.000060    1 Updated LSP fix.00-00
Fri Oct 31 12:42:30        0.000161    2 Multi area attachment change
Fri Oct 31 12:56:58        0.000198    1 Periodic SPF
Fri Oct 31 13:10:29        0.000209    1 Periodic SPF
 IS-IS level 2 SPF log:

Start time          Elapsed (secs) Count Reason
Fri Oct 31 12:41:18        0.000035    1 Reconfig
Fri Oct 31 12:41:18        0.000047    2 Updated LSP fix.00-00
Fri Oct 31 12:41:18        0.000043    5 Address change on gr-0/2/0.0
Fri Oct 31 12:41:23        0.000022    1 Updated LSP fix.00-00
Fri Oct 31 12:41:59        0.000144    3 New adjacency h on gr-0/2/0.0
Fri Oct 31 12:42:30        0.000257    3 New LSP skag.00-00
Fri Oct 31 12:54:37        0.000195    1 Periodic SPF
Fri Oct 31 12:55:50        0.000178    1 Updated LSP fix.00-00
Fri Oct 31 12:55:55        0.000174    1 Updated LSP h.00-00
Fri Oct 31 12:55:58        0.000176    1 Updated LSP skag.00-00
Fri Oct 31 13:08:14        0.000198    1 Periodic SPF
IPV6 Unicast IS-IS level 1 SPF log:

Start time          Elapsed (secs) Count Reason
Fri Oct 31 12:41:18        0.000028    1 Reconfig
Fri Oct 31 12:41:18        0.000043    3 Updated LSP fix.00-00
Fri Oct 31 12:41:18        0.000112    4 Updated LSP fix.00-00
Fri Oct 31 12:41:23        0.000059    1 Updated LSP fix.00-00
Fri Oct 31 12:41:25        0.000041    1 Updated LSP fix.00-00
Fri Oct 31 12:41:28        0.000103    5 New adjacency scat on ge-1/1/0.0
Fri Oct 31 12:41:59        0.000040    1 Updated LSP fix.00-00
Fri Oct 31 12:42:30        0.000118    2 Multi area attachment change
Fri Oct 31 12:56:08        0.000289    1 Periodic SPF
Fri Oct 31 13:11:07        0.000214    1 Periodic SPF
IPV6 Unicast IS-IS level 2 SPF log:

Start time          Elapsed (secs) Count Reason
Fri Oct 31 12:41:18        0.000027    1 Reconfig
Fri Oct 31 12:41:18        0.000039    2 Updated LSP fix.00-00
Fri Oct 31 12:41:18        0.000049    6 Updated LSP fix.00-00
Fri Oct 31 12:41:23        0.000025    1 Updated LSP fix.00-00
Fri Oct 31 12:41:25        0.000023    1 Updated LSP fix.00-00
Fri Oct 31 12:41:59        0.000087    3 New adjacency h on gr-0/2/0.0
Fri Oct 31 12:42:30        0.000123    3 New LSP skag.00-00
Fri Oct 31 12:55:50        0.000121    1 Updated LSP fix.00-00
Fri Oct 31 12:55:55        0.000121    1 Updated LSP h.00-00
Fri Oct 31 12:55:58        0.000121    1 Updated LSP skag.00-00
Fri Oct 31 13:09:46        0.000201    1 Periodic SPF
...

show isis spf results

user@host> show isis spf results logical-system ls1 
IS-IS level 1 SPF results:
Node             Metric     Interface         Via             SNPA
scat.00          10         ge-1/1/0.0       scat            0:90:69:a6:48:9d
                 20         10.9.1.0/30
fix.02           10
fix.00           0
                 10         10.9.1.0/30
                 10         10.9.5.0/30
                 10         10.9.6.0/30
                 20         10.9.7.0/30
                 60         10.9.201.1/32
  3 nodes

 IS-IS level 2 SPF results:
Node             Metric     Interface         Via             SNPA
skag.00          20         gr-0/2/0.0       h             
                 30         10.9.7.0/30
skag.02          20         gr-0/2/0.0       h             
h.00             10         gr-0/2/0.0       h             
                 20         10.9.6.0/30
                 20         10.9.7.0/30
                 60         10.9.201.1/32
fix.00           0
                 10         10.9.1.0/30
                 10         10.9.5.0/30
                 10         10.9.6.0/30
  4 nodes

IPV6 Unicast IS-IS level 1 SPF results:
Node             Metric     Interface         Via             SNPA
scat.00          10         ge-1/1/0.0       scat            0:90:69:a6:48:9d
                            ge-1/1/0.0       scat            0:90:69:a6:48:9d
                 20         8009:1::a09:1400/126
fix.02           10
fix.00           0
                 10         8009:1::a09:1400/126
                 10         8009:2::a09:1e00/126
                 20         8009:3::a09:3200/126
                 10         8009:4::a09:2800/126
  3 nodes

IPV6 Unicast IS-IS level 2 SPF results:
Node             Metric     Interface         Via             SNPA
skag.00          20         gr-0/2/0.0       h             
                            gr-0/2/0.0       h             
                 30         8009:3::a09:3200/126
skag.02          20         gr-0/2/0.0       h             
                            gr-0/2/0.0       h             
h.00             10         gr-0/2/0.0       h             
                            gr-0/2/0.0       h             
                 20         8009:3::a09:3200/126
                 20         8009:4::a09:2800/126
fix.00           0
                 10         8009:1::a09:1400/126
                 10         8009:2::a09:1e00/126
                 10         8009:4::a09:2800/126
  4 nodes           
                    
Multicast IS-IS level 1 SPF results:
Node             Metric     Interface         Via             SNPA
scat.00          10         ge-1/1/0.0       scat            0:90:69:a6:48:9d
fix.02           10 
fix.00           0  
  3 nodes           
                    
Multicast IS-IS level 2 SPF results:
Node             Metric     Interface         Via             SNPA
skag.00          20         gr-0/2/0.0       h             
skag.02          20         gr-0/2/0.0       h             
h.00             10         gr-0/2/0.0       h             
fix.00           0  
  4 nodes           
...

show isis spf results (CLNS)

user@host> show isis spf results 
IS-IS level 1 SPF results:
Node             Metric     Interface         Via             SNPA
skag.00 10                  fe-0/0/1.0       toothache       0:12:0:34:0:56
                            fe-0/0/1.0       toothache       0:12:0:34:0:56
                 20         192.168.37.64/29
                 10         1921.6800.4001
                 20         1921.6800.4002
pro1-a.02        10
pro1-a.00        0
                 0          10.255.245.1/32
                 10         192.168.37.64/29
                 0          1921.6800.4211
  3 nodes

IS-IS level 2 SPF results:
Node             Metric     Interface         Via             SNPA
skag.00 10                  fe-0/0/1.0       toothache       0:12:0:34:0:56
                            fe-0/0/1.0       toothache       0:12:0:34:0:56
                 20         10.255.245.1/32
                 20         192.168.37.64/29
                 20         47.0005.80ff.f800.0000.0109.0010/104
pro1-a.02        10
pro1-a.00        0
                 0          10.255.245.1/32
                 10         192.168.37.64/29
  3 nodes
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