What command visualizes the general NetFlow data on the command line?

What command visualizes the general NetFlow data on the command line?
A . show ip flow export
B . show ip flow top-talkers
C . show ip cache flow
D . show mls sampling
E . show mls netflow ip

View Answer

Answer: C

Explanation:

The following is an example of how to visualize the NetFlow data using the CLI. There are three methods to visualize the data depending on the version of Cisco IOS Software. The traditional show command for NetFlow is "show ip cache flow" also available are two forms of top talker commands. One of the top talkers commands uses a static configuration to view top talkers in the network and another command called dynamic top talkers allows real-time sorting and aggregation of NetFlow data. Also shown is a show MLS command to view the hardware cache on the Cisco Catalyst 6500 Series Switch.

The following is the original NetFlow show command used for many years in Cisco IOS Software. Information provided includes packet size distribution; basic statistics about number of flows and export timer setting, a view of the protocol distribution statistics and the NetFlow cache.

R3#show ip cache flow

IP packet size distribution (469 total packets):

1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480

.000 .968 .000 .031 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000

512 544 576 1024 1536 2048 2560 3072 3584 4096 4608

.000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000

IP Flow Switching Cache, 278544 bytes

7 active, 4089 inactive, 261 added

1278 ager polls, 0 flow alloc failures

Active flows timeout in 30 minutes

Inactive flows timeout in 15 seconds

IP Sub Flow Cache, 25736 bytes

1 active, 1023 inactive, 38 added, 38 added to flow

0 alloc failures, 0 force free

1 chunk, 1 chunk added

last clearing of statistics never

Protocol Total Flows Packets Bytes Packets Active(Sec) Idle(Sec)

——– Flows /Sec /Flow /Pkt /Sec /Flow /Flow

TCP-WWW 71 0.0 1 40 0.1 1.3 1.2

TCP-BGP 35 0.0 1 40 0.0 1.3 1.2

TCP-other 108 0.1 1 40 0.1 1.3 1.2

UDP-other 37 0.0 1 52 0.0 0.0 15.4

ICMP 3 0.0 5 100 0.0 0.0 15.3

Total: 254 0.2 1 42 0.4 1.1 3.5

(NetFlow cache below)

SrcIf SrcIPaddress DstIf DstIPaddress Pr SrcP DstP Pkts

Et1/0 172.16.7.2 Null 224.0.0.9 11 0208 0208 1

Et1/0 172.16.10.2 Et0/0 172.16.1.84 06 0087 0087 1

Et1/0 172.16.10.2 Et0/0 172.16.1.84 06 0050 0050 1

Et1/0 172.16.10.2 Et0/0 172.16.1.85 06 0089 0089 1

Et1/0 172.16.10.2 Et0/0 172.16.1.85 06 0050 0050 1

Et1/0 172.16.10.2 Et0/0 172.16.1.86 06 00B3 00B3 1

Et1/0 172.16.10.2 Et0/0 172.16.1.86 06 0185 0185 2

Reference: Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-netflow/prod_white_paper0900aecd80406232.html