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Is it possible to use the vrf interface as source of netflow packets?
NetFlow VRF Export:
- Allow the export of flow records within a VRF.
- Valid for both SCTP* and UDP export.
Router(config)# ip flow-export destination 10.1.1.2 2000 vrf testvrf...
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20 Feb, 2008 |
Views: 5950 |
Comments: 1 |
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How can I enable netflow on Cisco 3550 or Cisco 3750 devices?
No. Cisco doesn't support NetFlow on the following devices:
Cisco 2900
Cisco 3500
Cisco 3750
It is possible to configure NetFlow export, but no flows are send to the...
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21 Mar, 2007 |
Views: 4110 |
Comments: 1 |
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What is difference between "ip flow ingress" and "ip route-cache flow"?
The "ip route-cache flow" can be used only under the main interface, while the "ip flow ingress" was an enhancement to be used under subinterfaces.
The NetFlow Subinterface...
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15 May, 2007 |
Views: 3684 |
Comments: 0 |
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On which Cisco device is netflow supported?
NetFlow is most likely available in any devices on the network.
Device
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16 Jun, 2008 |
Views: 3030 |
Comments: 0 |
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How can I configure netflow on Cisco?
Please, visit the following web page to see a brief guide to setting up the NetFlow data export (NDE) on a Cisco devices.
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27 Feb, 2007 |
Views: 2285 |
Comments: 0 |
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When I run show ip flow top-talkers I see null destination interface. What does null interface mean?
Output interfaces are "Null" in the following cases:
The packets are blocked by an ACL.
The packets are process switcheded. This could be because the feature is not supported
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22 Jan, 2007 |
Views: 1887 |
Comments: 0 |
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I would like to get NetFlow information from individual layer 2 switch ports.
The commands you need for layer2-switched traffic:
ip flow ingress layer2-switched vlan <vlanlist>
ip flow export layer2-switched vlan <vlanlist>
However, from the IOS guide: A...
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22 Jan, 2007 |
Views: 1597 |
Comments: 0 |
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I have interface Vlan2 with record ip route-cache flow, but I have never seen traffic of this interface, although, other VLAN interfaces present in statistics.
Probably, Vlan2 is not layer3 interface or you haven't enabled collection of layer2 statistics.
Try the command "show ip interface brief" to display brief summary of IP status and...
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22 Feb, 2007 |
Views: 1415 |
Comments: 0 |
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I configured NetFlow on Cat6500, but application shows only a few MBytes, whereas it should have been several GBytes.
Cat6500 uses MSFC only for the first packet, and the last packets are switched using PFC (CEF, dCEF). To correct configure Netflow export on the Cat6500, you must enable Netflow on the MSFC and on...
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22 Jan, 2007 |
Views: 1414 |
Comments: 0 |
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What means "flow mask" in the mls configuration?
By default, the flow keys are: Source IP address, destination IP address, source port, destination port, layer 3 protocol type, ToS byte (DSCP) and input interface. On Cisco Catalyst we speak of the...
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22 Jan, 2008 |
Views: 1313 |
Comments: 0 |
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Recent articles
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EARL NetFlow error messages
This section contains Enhanced Address Recognition Logic Netflow (EARL_NETFLOW) messages.
EARL_NETFLOW-0
Error Message: EARL_NETFLOW-0-NF_ECC_MAX: Netflow ECC Error Threshold Reached, Total Ecc...
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15 Aug, 2008 |
Views: 50 |
Comments: 0 |
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What means "TCAM Utilization" and "ICAM Utilization"?
The ICAM is used to handle hash collisions in the netflow table. It essentially indicates that 2 unique flows hashed to the same key in the hardware, so the netflow TCAM stores the index to the flow...
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15 Aug, 2008 |
Views: 65 |
Comments: 0 |
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I'm seeing a WARNING: TCAM request associate message... What is it mean?
Following messages are seen while disabling/enabling QoS globally:
Router#config term
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#no mls...
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21 Apr, 2008 |
Views: 473 |
Comments: 0 |
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What is netflow table capacity on Cisco?
No statistics are available for flows that are switched when the NetFlow table is full. If the NetFlow table utilization exceeds the recommended utilization levels, there is an increased probability...
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14 Apr, 2008 |
Views: 542 |
Comments: 0 |
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Can I use a bridged IP traffic NetFlow on PFC3A?
No, PFC3A mode does not support NetFlow bridged IP traffic.
Netflow for bridged traffic requires Release 12.2(18)SXE or later.
This example shows how to enable NetFlow for ingress-bridged IP...
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14 Apr, 2008 |
Views: 501 |
Comments: 0 |
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NetFlow on a Cisco 4500 series. Do I need a NetFlow services card?
You need to purchase and install a NetFlow services WS-4531 card to support NetFlow on 4500 series.
You cannot enable NetFlow without this card.
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16 Oct, 2007 |
Views: 1035 |
Comments: 0 |
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Is it possible to use the vrf interface as source of netflow packets?
NetFlow VRF Export:
- Allow the export of flow records within a VRF.
- Valid for both SCTP* and UDP export.
Router(config)# ip flow-export destination 10.1.1.2 2000 vrf testvrf...
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20 Feb, 2008 |
Views: 5950 |
Comments: 1 |
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What is diference between normal, fast and long mls aging?
The MLS aging time (default 300 seconds) applies to all NetFlow table entries. You can configure the normal aging time in the range of 32 to 4092 seconds. Flows can age as much as 4 seconds sooner...
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22 May, 2007 |
Views: 1172 |
Comments: 0 |
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What is difference between "ip flow ingress" and "ip route-cache flow"?
The "ip route-cache flow" can be used only under the main interface, while the "ip flow ingress" was an enhancement to be used under subinterfaces.
The NetFlow Subinterface...
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15 May, 2007 |
Views: 3684 |
Comments: 0 |
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Can I install netflow monitoring on a 64bit system?
Yes, but Caligare Flow Inspector is not available in 64bits binary format. You may install 64bits system and run 32bits nfcd daemon. Use the following steps to install netflow monitoring in a...
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22 Mar, 2007 |
Views: 856 |
Comments: 0 |
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