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Introduction Configuring the Ingress Metering

Software Reference for SwitchBlade x3100 Series Switches (Access and Security)

6-50

6.5 Ingress Metering (Policing)

To provide metering (policing) of ingress traffic, classifiers are defined and then associated with a RATE (the

CIR) and BURSTSIZE (the CBS). The actions that are then taken when the traffic exceeds the profile is DROP

or FORWARD the packets. The NCCOUNT option allows for counting non-conforming packets.

Once the CLASSIFIER(s) are associated with a meter and an interface, the system may generate a warning mes-

sage at the user’s CLI session stating that classifier capacity or capabilities have been exceeded on the slot(s)

impacted by the provisioning change. The user should investigate classifier-related provisioning, such as IGMP,

DHCPRELAY, VLAN (for per-VLAN UFO and HVLAN), EPSR, INTERFACE (TAGALL option for HVLAN),

ACCESSLIST, and CLASSIFIER to determine the reason for the message.

Ta b l e 6- 8 lists the ingress increment value and burst size support when configuring the interfaces.

6.5.1 Configuring the Ingress Metering

TABLE 6-8 Ingress Metering values for the SBx3112

Value GE24POE GE24SFP XE4

Ingress metering increment value (kbps)

64 64 64

Ingress metering minimum burst size (KBytes)

4 4 4

Ingress metering maximum burst size (KBytes)

512 512 4096

TABLE 6-9 Configuration procedure for Ingress Metering

Step Command Description

Create a set of classifiers, in this example using an IPSOURCE and VLANID values

CREATE CLASSIFIER=ipMeter1 IPSOURCE=1.0.0.0/8

CREATE CLASSIFIER=vlanMeter1 VID=1

CREATE CLASSIFIER=ipMeter2 IPSOURCE=1.2.3.4

CREATE CLASSIFIER=delete IPSOURCE=ANY

Create a set of meters.

CREATE TRAFFICDESCRIPTOR=small_rate RATE=128K BURSTSIZE=64KB

CREATE TRAFFICDESCRIPTOR=large_rate RATE=2M BURSTSIZE=128KB

CREATE TRAFFICDESCRIPTOR=throttle RATE=1M BURSTSIZE=4KB

Allied Telesis SwitchBlade x3100 Series User Manual

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