6
Policy management on the Nortel Ethernet Switch 460, Ethernet Switch 470, and BPS
318396-4.1
Known device limitations for EPM 4.1
Users should consider the following guidelines when creating policy
configuration for the BPS or Ethernet Switch devices.
•
If you are running a stack of cascaded Ethernet Switch devices, you can
configure user-based policies on the stack ONLY if the stack consists entirely
of COPS-PR compatible devices (Business Policy Switch, Ethernet Switch
460, and Ethernet Switch 470). If you are running a mixed stack that includes
Ethernet Switch 450 devices, you will not be able to configure user-based
policies on the stack.
•
Maximum 24 roles per device.
•
Maximum 200 IP traffic conditions per device.
•
Maximum 14 802 traffic conditions per device.
•
Devices with limited memory may not be able to achieve the limitations
stated above.
•
The BPS 2.x series has a special limit of 24 traffic conditions that specify the
same source IP address.
To avoid device limitations
•
Avoid assigning multiple traffic conditions with overlapping traffic criteria to
a single policy. This will result in excessive numbers of policy filters being
sent to the device. For example, do not assign two traffic conditions, each
specifying the same port number, to the same policy.
•
When creating a traffic condition, you should limit the number of different
types of traffic flow criteria you specify. A traffic condition that specifies too
many traffic criteria will, in turn, cause the policies to which it is applied to
send an excessive number of policy filters to network devices. The network
devices may return error messages as a result.
