# Viewing System Clfr Elements

Use this procedure to open the System Clfr Element tab.

## Procedure steps

1. From the navigation tree, double-click QoS.

2. From the QoS tree, double-click QoS Rules.

3. Select the System Clfr Element tab.

## Variable definitions

The following table outlines the parameters of the System Clfr Element tab.

Table 1. QoS Rules System Clfr Element tab parameters
Variable | Value
--- | ---
Id | Specifies the index that enumerates the system classifier entries.
Name | Specifies the System Classifier Element name.
UnknownUcastFrames | Identifies frames with an unknown unicast destination address. true— Indicates frames that contain an unknown unicast destination address match this classification entry. false— Indicates that no classification is requested based on this address type. Can be applied on ERS 56xx as version 2 elements.
UnknownMcastFrames | Identifies frames with an unknown multicast destination address. true— Indicates frames that contain an unknown multicast destination address match this classification entry. false— Indicates that no classification is requested based on this address type.
KnownMcastFrames | Identifies frames with a known multicast destination address. true— Indicates frames containing a known multicast destination address match this classification entry. false— Indicates that no classification is requested based on this address type.
UnknownIpMcast | Identifies IP packets with an unknown IP multicast destination address. true— Indicates that IP packets that contain an unknown multicast destination address match this classification entry. false— Indicates that no classification is requested based on this address type. Can be applied on ERS 56xx as version 2 elements.
KnownIpMcast | Identifies IP packets with a known IP multicast destination address. true— Indicates that IP packets that contain a known multicast destination address match this classification entry. false— Indicates that no classification is requested based on this address type. Can be applied on ERS 56xx as version 2 elements.
UnknownNonIpMcast | Identifies non-IP packets with an unknown MAC multicast destination address. true— Indicates that non-IP packets containing an unknown multicast destination address match this classification entry. false— Indicates that no classification is requested based on this address type. Can be applied on ERS 56xx as version 2 elements.
KnownNonIpMcast | Identifies non-IP packets with a known MAC multicast destination address. true— Indicates that non-IP packets containing a known multicast destination address match this classification entry. false— Indicates that no classification is requested based on this address type. Can be applied on ERS 56xx as version 2 elements.
NonIpPkt | Supports targeting non-IP traffic. true— Indicates that non IP packets match this classification entry. false— Indicates that no classification is requested based on this packet type. Can be applied on ERS 56xx as version 2 elements.
PatternFormat | Indicates that the data link layer packet format that is used when specifying pattern match data. untagged— Indicates that the specified pattern match data does not include an 802.1Q tag. tagged— Indicates that the specified pattern match data does include an 802.1Q tag. The default value is tagged.
PatternIPVersion | Specifies the pattern IP version.
PatternL2Format | Specifies the Layer 2 pattern format (ethernet 2, llc, or snap).
Version | Specifies the version.
SessionId | Specifies the number assigned to the session displays in this column.
Storage | Specifies the storage type for this conceptual row. Conceptual rows that have the value permanent need not allow write-access to any columnar objects in the row. This object may not be modified if the associated status object is equal to active.

This section contains information about the following topics:

- Viewing the system classifier pattern

- Adding system classifier elements

- Deleting system classifier elements