show isis statistics

Syntax

show isis statistics 

<instance instance-name>

<logical router (all | logical-router-name)>

Description

Display statistics about Intermediate System-to-Intermediate System (IS-IS) traffic.

Options

None—Display IS-IS traffic statistics for all routing instances on all logical routers.

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

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

Required Privilege Level

view

See Also

clear isis statistics

List of Sample Output

show isis statistics

Output Fields

PDU type—Protocol data unit 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 complete sequence number PDU (CSNP) and partial sequence number PDU (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. An 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.

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