VSC7511XMY datasheet(78/324 Pages) MICROSEMI

78 / 324 page

Functional Descriptions

VMDS-10488 VSC7511 Datasheet Revision 4.2

The following table lists the registers associated with port configuration for VCAP.

Each port module affects the key generation for VCAPs IS1 and IS2 through the VCAP_CFG,

VCAP_S1_KEY_CFG, and VCAP_S2_CFG registers, and the rewriter affects VCAP ES0 through the

REW:PORT:PORT_CFG.ES0_ENA register.

3.8.1.1

VCAP IS1 Port Configuration

The following port configurations are available for IS1:

•

Enable lookups in IS1 (VCAP_CFG.S1_ENA). If disabled, frames received by the port module are

not matched against rules in VCAP IS1.

•

Use destination information rather than source information (VCAP_CFG.S1_DMAC_DIP_ENA). By

default, the two advanced classification lookups in IS1 use the source MAC address and source IP

address from the incoming frame when generating the key. Through S1_DMAC_DIP_ENA, the

corresponding destination information, destination MAC address, and destination IP address can be

used instead. This can be controlled per lookup so that, for example, the first lookup applies source

information, and the second applies destination information.

•

Use inner VLAN tag rather than outer VLAN tag (VCAP_CFG.S1_VLAN_INNER_TAG_ENA). By

default, the two advanced classification lookups in IS1 use the outer VLAN tag from the incoming

frame when generating the key. Through S1_VLAN_INNER_TAG_ENA, the inner tag for double

tagged frames can be used. This can be controlled per lookup so that, for example, the first lookup

applies the outer tag, and the second lookup applies the inner tag. For single tagged frames, the

outer VLAN tag is always used.

•

Select which IS1 key to use for IPv6 frames (VCAP_S1_CFG.S1_KEY_IP6_CFG). This can be

controlled per lookup in IS1. IPv6 frames can use any of the six supported keys in IS1. For more

information about the IS1 keys, see VCAP IS1, page 65.

•

Select which IS1 key to use for IPv4 frames (VCAP_S1_CFG.S1_KEY_IP4_CFG). This can be

controlled per lookup in IS1. IPv4 frames can use S1_NORMAL, S1_7TUPLE, S1_5TUPLE_IP4, or

S1_DBL_VID keys.

•

Select which IS1 key to use for non-IP frames (VCAP_S1_CFG.S1_KEY_OTHER_CFG). This can

be controlled per lookup in IS1. Non-IP frames can use S1_NORMAL, S1_7TUPLE, or S1_DBL_VID

keys.

3.8.1.2

VCAP IS2 Port Configuration

The following port configurations are available for IS2:

•

Enable lookups in IS2 (VCAP_S2_CFG.S2_ENA). If disabled, frames received by the port module

are not matched against rules in VCAP IS2.

•

Default PAG value (VCAP_CFG.PAG_VAL). This PAG value is the initial value. Actions out of IS1

can change the PAG value before it is used in the key for IS2.

Each port module can control a hierarchy of which entry types in IS2 to use for different frame types. This

is controllable per lookup. For instance, it is controllable whether IPv6 TCP frames are matched against

IP6_TCP_UDP entries, IP6_STD entries, IP4_TCPUDP entries, or MAC_ETYPE entries. Note that

matching against an entry type controls how the key is generated.

Table 34 •

Port Module Configuration of VCAP

Description

Replication

ANA:PORT:VCAP_CFG

Configuration of the key generation for

the VCAPs.

Per port

ANA:PORT:VCAP_S1_KEY_CFG Configuration of the key generation for

the VCAP IS1 per lookup.

Per port

ANA:PORT:VCAP_S2_CFG

Configuration of the key generation for

the VCAP IS2.

Per port

REW:PORT:PORT_CFG

Enables VCAP ES0.

Per port

VSC7511XMY датащи(PDF) 78 Page - Microsemi Corporation

VSC7511XMY датащи(HTML) 78 Page - Microsemi Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL