Siemens S323 用户手册

UMN:CLI User Manual

SURPASS hiD 6615 S223/S323 R1.5

188 A50010-Y3-C150-2-7619

Fig. 8.5

In Case External Packets Enter under Layer 2 environment (1)

To transmit the untagged packet from uplink port to subscriber, a new VLAN should be
created including all subscriber ports and uplink ports. This makes the uplink ports to rec-
ognize all other ports.

FID helps this packet forwarding. FDB is MAC Address Table that recorded in CPU. FDB
table is made of FID (FDB Identification). Because the same FID is managed in the same
MAC table, it can recognize how to process packet forwarding. If the FID is not same, the
system cannot know the information from MAC table and floods the packets.

default

br2

br3

br4

br5

Outer Network

Uplink Port

SWITCH(bridge)# show vlan

u: untagged port, t: tagged port

-----------------------------------------------------------------

| 1 2 3 4

Name( VID| FID) |123456789012345678901234567890123456789012

-----------------------------------------------------------------

default( 1| 6) |u...uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

br2( 2| 6) |.u.....................u..................

br3( 3| 6) |..u....................u..................

br4( 4| 6) |...u...................u..................

br5( 5| 6) |....u..................u..................

br6( 6| 6) |uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

SWITCH(bridge)#

Fig. 8.6

In Case External Packets Enter under Layer 2 environment (2)

In conclusion, to use the hiD 6615 S223/S323 as Layer 2 switch, user should add the up-
link port to all VLANs and create new VLAN including all ports. If the communication be-
tween each VLAN is needed, FID should be same.

To configure FID, use the following command.

Command Mode

Description

vlan fid VLANS FID

Bridge

Configures FID.
VLANS: enters VLAN name
FID: enters FID value