Supported Platforms
show isis statistics
Syntax
Syntax (EX Series Switches and QFX Series)
Release Information
Command introduced before Junos OS Release 7.4.
Command introduced in Junos OS Release 9.0 for EX Series switches.
Command introduced in Junos OS Release 12.1 for the QFX Series.
Description
Display statistics about IS-IS traffic.
Options
none | — | Display IS-IS traffic statistics for all routing instances. |
instance instance-name | — | (Optional) Display statistics for the specified routing instance. |
logical-system (all | logical-system-name) | — | (Optional) Perform this operation on all logical systems or on a particular logical system. |
Required Privilege Level
view
List of Sample Output
show isis statisticsOutput Fields
Table 1 describes the output fields for the show isis statistics command. Output fields are listed in the approximate order in which they appear.
Table 1: show isis statistics Output Fields
Field Name | Field Description |
|---|---|
PDU type | PDU type:
|
Received | Number of PDUs received since IS-IS started or since the statistics were set to zero. |
Processed | Number of PDUs received less the number dropped. |
Drops | Number of PDUs dropped. |
Sent | Number of PDUs transmitted since IS-IS started or since the statistics were set to zero. |
Rexmit | Number of PDUs retransmitted since IS-IS started or since the statistics were set to zero. |
Total packets received/sent | Total number of PDUs received and transmitted since IS-IS started or since the statistics were set to zero. |
SNP queue length | Number of CSPN and PSNP packets currently waiting in the queue for processing. This value is almost always 0. |
LSP queue length | Number of link-state PDUs waiting in the queue for processing. This value is almost always 0. |
SPF runs | Number of shortest-path-first (SPF) calculations that have been performed. If this number is incrementing rapidly, it indicates that the network is unstable. |
Fragments rebuilt | Number of link-state PDU fragments that the local system has computed. |
LSP regenerations | Number of link-state PDUs that have been regenerated. A link-state PDU is regenerated when it is nearing the end of its lifetime and it has not changed. |
Purges initiated | Number of purges that the system initiated. A purge is initiated if the software decides that a link-state PDU must be removed from the network. |
Sample Output
show isis statistics
user@host> show isis statistics IS-IS statistics for merino: PDU type Received Processed Drops Sent Rexmit LSP 12227 12227 0 8184 683 IIH 113808 113808 0 115817 0 CSNP 198868 198868 0 198934 0 PSNP 6985 6979 6 8274 0 Unknown 0 0 0 0 0 Totals 331888 331882 6 331209 683 Total packets received: 331888 Sent: 331892 SNP queue length: 0 Drops: 0 LSP queue length: 0 Drops: 0 SPF runs: 1014 Fragments rebuilt: 1038 LSP regenerations: 425 Purges initiated: 0
