Realtek switch SoC docs

maple table: L2_MC

Details

Name
L2_MC
Feature
TABLE_ACCESS
Type
0
Entries
8192
Data width
96
Control register
TBL_ACCESS_L2_CTRL
Data register
TBL_ACCESS_L2_DATA

Description

An L2 multicast entry.

L2 multicast entries are distinguished from unicast entries by the multicast bit in the MAC address being 1. This bit is the LSB of the first byte of the MAC address, meaning MC MAC addresses will start with ‘x1-xx-…’, ‘x3-xx-..’, etc.

Fields

Name LSB Bits Description
IP_MC 86 1

Must be 0.

IP6_MC 85 1

Must be 0.

MC_PMSK_IDX 76 9

An index into MC_PMSK the port-mask the multicast entry is forwarded to.

VID 64 12
MAC 12 48

A multicast MAC address (bit 0 of byte 0 is 1).

FID_RVID 0 12

Forwarding ID or Relay VLAN ID used for forwarding as part of the hash-key.