Alcatel-Lucent 9500 MXC User Manual page 461

3DB 23063 ADAA - Rev 004 July 2007
• If DAC GEs are configured for the same priority value, or left as default,
the DAC GE with the lowest MAC address becomes the root switch.
Example Ring with RWPR Settings
Figure 7-25.
DAC GE
Bridge Priority 300
P1 C2
Attached data
network
C1
Priority = 50
Cost = 300
150 Mbps
Priority = 50
Cost = 300
C1
Attached data
network
C2
P1
Bridge Priority 100
DAC GE
Root port
Designated port
12. . Enter a name (optional - recommended) for the module by
Module Name
right-clicking in the relevant DATA module in the System Summary screen,
selecting Rename, and typing. The default name is 'unnamed'.
13. : Click the Priority Mapping tag to view and select the
Priority Mapping
priority mode and associated mapping. Refer to Figure 7-26. DAC GE has a
four level (two bit) priority field, meaning the 8 priority levels of 802.1p
tagging or the 63 levels of DiffServ are mapped into 4 levels over a DAC GE
link.
Blocked
150 Mbps
Priority = 100 Priority = 100
Cost = 500 Cost = 500
Priority = 50 Priority = 50
Cost = 300 Cost = 300
150 Mbps
Alternate port
Edge port
9500 MXC User Manual
DAC GE
Bridge Priority 200
C2 P1
Attached data
network
C1
Priority = 50
Cost = 300
150 Mbps
Priority = 50
Cost = 300
C1
Attached core
data network
C2
P1
Bridge Priority 10
DAC GE
Root switch
Vol. IV-7-71