ADTRAN FNID Informações Técnicas descarregar pdf (Página 9)

Integrated Traffic Monitoring Configuring ITM and Top Traffic Using the GUI

ITM observes IP packet information in the traffic flow upon ingress or egress; it does not analyze the

traffic over its lifetime within the AOS product. As a result, ITM does not consider the execution details of

features like the following:

• Internal routing modification using Policy Based Routing (PBR) and Virtual Routing and

Forwarding (VRF)

• Packet encapsulation using Generic Routing Encapsulation (GRE), IPsec, and Virtual Private

Networks (VPNs)

• Packet modification using Network Address Translation (NAT)

• Packet replication using Multicast

While these features can be used on an AOS product with ITM enabled, do not expect to use ITM to

configure or diagnose problems with these types of applications.

ITM only monitors routed traffic, therefore, ITM is not available to monitor switch port interface traffic.

Top Traffic Limitations

The Top Traffic feature of ITM does not provide as much information as an external data collector. It

provides a snapshot of important traffic flow statistics (such as bandwidth information) through byte or

packet counts, and which addresses and ports are using the bandwidth resources. For smaller networks, the

Top Traffic feature allows a quick glance at traffic monitoring information from within the AOS product

itself without the use of an external data collector.

Configuring ITM and Top Traffic Using the GUI

The following steps are required to implement ITM in AOS:

• Enable ITM on selected ingress or egress interface(s).

• Decide whether or not traffic will be sampled and/or filtered.

• If filtering is chosen, create an ACL (if one does not already exist).

• Determine sampling rate and type, if applicable.

• Specify the amount of time traffic flow data is kept in the flow cache before it expires.

• If using external collection, determine and specify the external data collector to which traffic flow

data will be exported.

• Specify how many IP packets will be exported before template information is sent.

• Specify how often template information will be re-sent.

• If using Top Traffic collection, refer to Configuring Top Traffic Using the (GUI) on page 17 of this

guide.

ADTRAN recommends that routers with high bandwidth or large flow counts have a large

sampling rate applied to the flow collector to reduce memory drain and maintain high

throughput performance. Failure to apply a sufficient sampling rate on a high-usage

router may result in adverse effects on the unit

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 49 50

Sem comentários

ADTRAN FNID Informações Técnicas Página 9