Cisco SCE 1000 2xGBE User's Guide download pdf (Page 199)

Chapter 7 Line Configuration

Configuring Traffic Rules and Counters

SCE 1000 2xGBE Release 2.0.10 User Guide

OL-7117-02 7-5

Displaying Tunneling Configuration

You can display the tunnel configuration.

To display the tunneling configuration:

Step 1 From the SCE 1000# prompt, type:

show interface lineCard 0 [MPLS|VLAN|L2TP|IP-tunnel] and press

Enter.

Configuring Traffic Rules and Counters

Traffic rules and counters may be configured by the user. This functionality enables the user to

define specific operations on the traffic flowing through the SCE Platform, such as blocking or

ignoring certain flows or counting certain packets. The configuration of traffic rules and counters

is independent of the application loaded by the SCE 1000, and thus is preserved when the

application being run by the SCE 1000 is changed.

Possible uses for traffic rules and counters include:

• Enabling the user to count packets according to various criteria. Since the traffic counters are

readable via the SCE SNMP MIB, these might be used to monitor up to 32 types of packets,

according to the requirements of the installation.

• Ignoring certain types of flows. When a traffic rules specifies an “ignore” action, packets

matching the rule criteria will not open a new flow, but will pass through the SCE 1000

without being processed. This is useful when a particular type of traffic should be ignored by

the SCE 1000.

Possible examples include ignoring traffic from a certain IP range known to require no

service, or traffic from a certain protocol.

• Blocking certain types of flows. When a traffic rules specifies a “block” action, packets

matching the rule criteria (and not belonging to an existing flow) will be dropped and not

passed to the other interface. This is useful when a particular type of traffic should be blocked

by the SCE 1000.

Possible examples include performing ingress source address filtering (dropping packets

originating from a subscriber port whose IP address does not belong to any defined

subscriber-side subnet), or blocking specific ports.

It should be noted that using traffic rules and counters does not affect performance. It is possible

to define the maximum number of both traffic rules and counters without causing any degradation

in the SCE 1000 performance.

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Cisco SCE 1000 2xGBE User's Guide Page 199