Assigning an 802.1Q Group to a Port
Page 16-10
For example, suppose that Port 3/1 is assigned to be in Group 2, and to use single spanning
tree. If the port were to be assigned to another group, it would automatically set itself to use
single spanning tree for that group as well.
When you set the
Mode of the service, the cas screen changes to accommodate the selection
and allows you to set the priority of the service. If you select single spanning tree, for exam-
ple, the screen changes to the following display, as shown:
Slot 3 Port 5 Ethernet 802.1Q Service
1) Description :
2) Group ID :
3) Tag :
4) Priority :
5) Mode : 4
If you select multiple spanning tree, the screen changes to the following display, as shown:
Slot 2 Port 1 Ethernet 802.1Q Service
1. Description (30 chars max) :
2. Group ID : 0
3. Tag : 0
4. Priority Remap Values :
40. 0 - 0
41. 1 - 1
42. 2 - 2
43. 3 - 3
44. 4 - 4
45. 5 - 5
46. 6 - 6
47. 7 - 7
5. Mode : 3
The incoming priority level of the packet can be remapped to any value between 0 and 7,
with 7 being the highest priority. To set a value of 5 for an incoming priority value of 4, for
example, you would enter 44=5.
For more information on single vs. multiple spanning tree, see Single vs. Multiple Spanning
Tree on page 16-4.
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