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Functional Descriptions

VMDS-10492 VSC7440 Datasheet Revision 4.2

166

3.21.1.6 VCAP IS2 Statistics and Diagnostics

The following table lists the registers associated with VCAP IS2 statistics and diagnostics.

Each key type use in a lookup in VCAP IS2 triggers a sticky bit being set in

ANA_ACL::SEC_LOOKUP_STICKY. A sticky bit is cleared by writing.

Each action returned by VCAP IS2 triggers one of 1,024 counters (ANA_ACL::CNT) to be incremented.

This applies to both actions from matches and default actions. The index into the counters is provided by

VCAP IS2 action CNT_ID. The CNT_ID is fully flexible meaning multiple actions can point to the same

counter. The counters are writable so they can be preset to any value. A counter is cleared by writing 0.

3.21.1.7 Routing Statistics

If a routed frame is discarded by a VCAP IS2 rule it is configurable how the frame is counted in terms of

ingress and egress router leg statistics.

MASK_MODE

Processed individually for each action. Second processing uses the result from the first

processing. (If the first processing is sticky, the second processing is not applied).

MASK_MODE is sticky for the following values:

3: REPLACE_ALL

4: REDIR_PGID

6: VSTAX

PORT_MASK

See MASK_MODE.

MIRROR_PROBE

Second action takes precedence when MIRROR_PROBE > 0.

REW_CMD

Second action takes precedence same functions are triggered by both actions. If

different functions are used, both are applied.

TTL_UPDATE_ENA

Second action takes precedence when same function is triggered by both actions. If

different functions are used, both are applied.

SAM_SEQ_ENA

Second action takes precedence when same function is triggered by both actions. If

different functions are used, both are applied.

TCP_UDP_ENA

Second action takes precedence when TCP_UDP_ENA is set.

MATCH_ID

Processed individually for each action. Second processing uses the result from the first

processing.

MATCH_ID_MASK

Processed individually for each action. Second processing uses the result from the first

processing.

CNT_ID

Processed individually for each action. Two counters are updated, one for each action.

SWAP_MAC_ENA

Sticky.

ACL_RT_MODE

Second action takes precedence when same function is triggered by both actions. If

different functions are used, both are applied.

ACL_MAC

Second action takes precedence when same function is triggered by both actions. If

different functions are used, both are applied.

PTP_DOM_SEL

Second action takes precedence when PTP_DOM_SEL > 0.

Table 104 •

VCAP IS2 Statistics and Diagnostics

Description

Replication

ANA_ACL::SEC_LOOKUP_STICKY

Sticky bits for each key type used in VCAP IS2.

Per lookup

ANA_ACL::CNT

VCAP IS2 match counters. Indexed with VCAP IS2 action

CNT_ID.

1,024

Table 103 •

Combining VCAP IS2 Actions (continued)

Action name

Combining actions

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