Allied Telesis AT-S87 - Manual (Page 101)

AT-S87 Management Software User’s Guide
101
STP or RSTP is activated on the switches, one of the links is disabled. In
the example, the port on the top switch that links the two parts of the
Production VLAN is changed to the block state. This leaves the two parts
of the Production VLAN unable to communicate with each other.
Figure 32. VLAN Fragmentation
1075
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45R 47R
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46R 48R
45 46 47 48
POWER
CLASS 1 LASER PRODUCT
AT-GS950/48 48 Port 10/100/1000 Mbps WebSmart Switch with 4 Combo SFP Ports
LINK 1000M ACT 100M 10M
PORT ACTIVITY
SFP
1075
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45R 47R
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46R 48R
45 46 47 48
POWER
CLASS 1 LASER PRODUCT
AT-GS950/48 48 Port 10/100/1000 Mbps WebSmart Switch with 4 Combo SFP Ports
LINK
1000M
ACT
100M 10M
PORT ACTIVITY
SFP
Sales
VLAN
Production
VLAN
Production
VLAN
Sales
VLAN
Blocked Port
Blocked Data Link