L-ET4148-50C-DB LSI, L-ET4148-50C-DB Datasheet - Page 86

• Manufacturer Part Number: L-ET4148-50C-DB
• Manufacturer: LSI

Specifications of L-ET4148-50C-DB

• Lead Free Status / RoHS Status: Supplier Unconfirmed

ET4148-50
Single-Chip 48 x 1 Gbit/s + 2 x 10 Gbits/s Layer 2+ Ethernet Switch
Appendix A: Registers
Acl_Mode
Description: Global operating modes for the ACL look-up function.
Table 72. Acl_Mode Register Parameters
Table 73. Acl_Mode Register Field Parameters
This register provides a series of general configuration and mode bits for the ACL look-up function.
86
Base Address
Register Size
Register Instances
Register Spacing
Record Size
Record Instances
Record Spacing
ipv4_only
port_based_acls
auto_deny_log_en
0
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
0
Parameter
1
Field Name
2
3
4
5
6
7
(continued)
0x0004_24f8
8
Value
9
Figure 54. Acl_Mode Register Diagram
NA
NA
4
1
4
1
10
Instances = 1
Instances = 1
Instances = 1
Offset = 0.29
Offset = 0.30
Offset = 0.31
11
Mode = R/W
Mode = R/W
Mode = R/W
Parameters
Agere Systems - Proprietary
Reset = 0
Reset = 0
Reset = 0
12
13
14
15
16
When asserted, this bit implies that only 32-bit IPv4
address values may be accommodated by the IP
address tables. When deasserted, a mix of 128-bit
IPv6 and zero-prefixed, right-justified 32-bit IPv4
addresses may be used.
The IPv4-only table capacity is 512 addresses. For
a mix of IPv4 and IPv6 addresses, that capacity
drops to 128.
This bit is asserted to direct the system to use a
packet’s receive port to identify its ACL. If this bit is
deasserted, then the receive packet’s VLAN index is
used instead.
Note: The maximum number of VLANs supported is
If a packet is denied access because a matching
ACE was not found, then the packet is logged if this
bit is asserted. If deasserted, then a packet that fails
to match any ACE is simply discarded.
17
18
256 yet the maximum number of ACLs is 50.
Acl_Vlan_Index_Table is used to map
VLAN indexes to ACL numbers.
19
20
21
22
Description
23
8
24
Preliminary Data Sheet
7
25
6
26
5
Agere Systems Inc.
27
4
28
3
April 2006
29
2
30
1
31
0