Nortel BayStack 410 24T Using Manual page 66

Using the BayStack 410-24T 10BASE-T Switch
• Filtering database identifier (FID) -- the specific filtering/forwarding database
within the BayStack 410-24T switch that is assigned to each VLAN. The
current version of software assigns all VLANs to the same FID. This is
referred to as Shared VLAN Learning in the IEEE 802.1Q specification.
The default configuration settings for BayStack 410-24T switches have all ports
set as untagged members of VLAN 1 with all ports configured as PVID = 1. Every
VLAN is assigned a unique VLAN identifier (VID) which distinguishes it from
all other VLANs. In the default configuration example shown in
incoming packets are assigned to VLAN 1 by the default port VLAN identifier
(PVID =1). Untagged packets enter and leave the switch unchanged.
PVID = 1
Incoming
untagged
packet
Key
By default:
Figure 1-16. Default VLAN Settings
When configuring VLANs, you configure the switch ports as tagged or untagged
members of specific VLANs (see Figures
1-38
802.1Q Switch
Port 1 Port 2
DA
SA
Data
CRC
All ports are assigned PVID = 1
All ports are untagged members of VLAN 1
VLAN 1
Port 3 Port 4 Port 5
CRC
Data
Outgoing
untagged packet
(unchanged)
SA
DA
1-17
Figure
Port 6 Port 7 Port 8
to 1-20).
309985-B Rev 00
1-16, all
BS41015A