VSC7440 datasheet(33/444 Pages) MICROSEMI

33 / 444 page

Functional Descriptions

VMDS-10492 VSC7440 Datasheet Revision 4.2

DST when

FWD.DST_MODE is

INJECT

RSV

191:181

11 bits

Reserved field. Must be set to 0.

DST PORT_MASK

180:128

53 bits

Injection destination port mask where

each bit representing a physical port (only

used for injection).

DST when

FWD.DST_MODE is

ENCAP

RSV

191:190

2 bits

Reserved field. Must be set to 0.

RT_FWD

189

1 bit

Update IP4 TTL and chksum/ip6 Hopcnt.

SWAP_MAC

188

1 bit

Instruct rewriter to swap MAC addresses.

TAG_TPID

187:186

2 bits

Tag protocol IDs.

0: Standard TPID as specified in

VSTAX.TAG.TAG_TYPE.

1: custom1 stag TPID.

2: custom2 stag TPID.

3: custom3 stag TPID.

RSV

185:184

2 bits

Reserved field. Must be set to 0.

GEN_IDX

183:174

10 bit

Generic index.

VSI when GEN_IDX_MODE = 1.

GEN_IDX_MODE

173

1 bit

0: Reserved.

1: VSI.

PROT_ACTIVE

172

1 bit

Protect is active.

PDU_W16_OFFSET 171:166

6 bits

PDU WORD16 (= 2 bytes) offset from

W16_POP_CNT to Protocol data unit

(PDU).

PDU_TYPE

165:163

3 bits

PDU type used to handle OAM, PTP and

SAT.

0: None.

1: OAM_Y1731.

2: OAM_MPLS_TP.

3: PTP.

4: IP4_UDP_PTP.

5: IP6_UDP_PTP.

6: Reserved.

7: SAM_SEQ.

CL_RSLT

162:147

16 bits

Classified MATCH_ID combined from

VCAP CLM and VCAP IS2. Used if the

frame is forwarded to the CPU.

MPLS_TTL

146:139

8 bits

TTL value for possible use in MPLS label.

MPLS_SBIT

138

1 bit

SBIT of last popped MPLS label. for

possible use in MPLS label.

MPLS_TC

137:135

3 bits

TC value for possible use in MPLS label.

Table 2 •

Internal Frame Header Fields (continued)

Field Category

Field Name

Bit

Width

Description

VSC7440 датащи(PDF) 33 Page - Microsemi Corporation

VSC7440 датащи(HTML) 33 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