Configuration Management For Trunk Areas; Table 7 Address Identifier - Brocade Communications Systems 8 Administrator's Manual

3
Trunking in Access Gateway mode

Configuration management for trunk areas

The porttrunkarea command does not allow ports from different admin domains (ADs) and ports
from different logical switches to join the same trunk area (TA) group.
When you assign a TA, the ports within the TA group will have the same Index. The Index that was
assigned to the ports is no longer part of the switch. Any Domain,Index (D,I) AD that was assumed
to be part of the domain may no longer exist for that domain because it was removed from the
switch.
Example : How Trunk Area assignment affects the port Domain,Index
If you have AD1: 3,7; 3,8; 4,13; 4,14 and AD2: 3,9; 3,10, and then create a TA with Index 8 with
ports that have index 7, 8, 9, and 10. Then index 7, 9, and 10 are no longer with domain 3. This
means that AD2 does not have access to any ports because index 9 and 10 no longer exist on
domain 3. This also means that AD1 no longer has 3,7 in effect because Index 7 no longer exists
for domain 3. AD1's 3,8, which is the TA group, can still be seen by AD1 along with 4,13 and 4,14.
A port within a TA can be removed, but this adds the Index back to the switch. For example, the
same AD1 and AD2 with TA 8 holds true. If you remove port 7 from the TA, it adds Index 7 back to
the switch. That means AD1's 3,7 can be seen by AD1 along with 3,8; 4,13 and 4,14.
Assigning a Trunk Area
You must enable trunking on all ports to be included in a Trunk Area before you can create a Trunk
Area. Use the portCfgTrunkPort or switchCfgTrunk command to enable trunking on a port or on all
ports of a switch.
Issue the porttrunkarea command to assign a static TA on a port or port trunk group, to remove a
TA from a port or group of ports in a trunk, and to display masterless trunking information.
You can remove specified ports from a TA using the porttrunkarea --disable command; however
this command does not unassign a TA if its previously assigned Area_ID is the same address
identifier (Area_ID) of the TA unless all the ports in the trunk group are specified to be unassigned.
For more information on the porttrunkarea command, enter help porttrunkarea or see the Fabric
OS Command Reference. F_Port trunking will not support shared area ports 16-47 on the Brocade
FC8-48 blades.
The following table shows an example of the Address Identifier.
TABLE 7
23
1. Connect to the switch and log in using an account assigned to the admin role.
2. Disable the ports to be included in the TA.
3. Enable TA for the appropriate ports. In the following example, TA is enabled for ports 13 and 14
4. Show the TA port configuration (ports still disabled).
52
Address identifier
22 21 20 19 18 17
Domain ID
on slot 10 with port index of 125.
switch:admin> porttrunkarea --enable 10/13-14 -index 125
Trunk index 125 enabled for ports 10/13 and 10/14
switch:admin> porttrunkarea --show enabled
16 15 14 13 12 11
Area_ID
Address Identifier
10 9 8 7 6 5 4 3
Port ID
Access Gateway Administrator's Guide
2 1 0
53-1001760-01