maple table: VLAN
Details
- Name
- VLAN
- Feature
- TABLE_ACCESS
- Type
- 0
- Entries
- 4096
- Data width
- 64
- Control register
- TBL_ACCESS_CTRL_0
- Data register
- TBL_ACCESS_DATA_0
Description
Configures the switch’s behavior for an inner VLAN-ID, i.e. after the packet has passed the ingress filter and possible VLAN-ID translation. At this point the switch needs to decide whether to look up the entry (Unicast/Multicast) for the forwarding decision based on the Forwarding ID (Multiple Station ID), or based on the inneer VLAN-ID. The SDK exclusively uses lookup based on the VID. What to do when an entry is unknown in the L2 tables is defined in the VLAN_PROFILE registers, which are referenced.
Fields
| Name | LSB | Bits | Description |
|---|---|---|---|
| MBR | 32 | 29 |
VLAN member port bitmask |
| FID_MSTI | 5 | 6 |
Forwarding ID for the MSTI this VLAN is associated with |
| L2_HASH_KEY_UC | 4 | 1 |
Specifies how the SoC will calculate the hash to look up entries in the L2_UC hash table. 0: Use VID, 1: Use FID |
| L2_HASH_KEY_MC | 3 | 1 |
Specifies how the SoC will calculate the hash to look up entries in the L2_MC hash table. 0: Use VID, 1: Use FID |
| VLAN_PROFILE | 0 | 3 |
References the VLAN_PROFILE registers with definitions regarding how to forward traffic in this VLAN (miss-flooding masks and learning enabled/disabled). |