Texas Instruments THUNDERSWITCH II TNETX4090 - Manual (Page 52)

TNETX4090
ThunderSWITCH II

9-PORT 100-/1000-MBIT/S ETHERNET

SWITCH
SPWS044E – DECEMBER 1997 – REVISED AUGUST 1999
52
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
Source
Port
Security
Violation
A B
Yes
No
new
Remove Source Port
(and other trunk members)
From
Port Routing Code
Source
Address
Found?
Source
Port = 1 in
NLearnPorts?
No
AND UnkSrcPorts
With VLAN
VLANnPorts,
Then OR With
Port Routing Code
Yes
No
Source
Locked
Bit = 1?
Yes
Source
Port
Moved?
Source
Secure
Bit = 1?
No
secvio
Yes
Yes
Discard
Frame
chng
No
To C
(Continued)
No
Yes
Stayed
Within a
Trunk?
Yes
Source
Port = 1 in
RingPorts?
No
Yes
Unknown
Source
Figure 12. Frame-Routing Algorithm (Continued)