Maximum bandwidth parameter in QoS policies. A QoS policy that has multiple traffic classes with different values for the maximum bandwidth parameter uses the lowest specified maximum bandwidth value for traffic flows that match more than one traffic class. (4137)
VLAN ingress filtering. Untagged packets on the
LACP aggregators. The ports of an LACP trunk must be untagged members of the same VLAN. The management software does not always display an error message if you violate this rule while modifying
Web server. The default setting for the web server on the switch has been changed from enabled to disabled. To use a web browser to manage the switch, you must first enable the server with the ENABLE HTTP SERVER command.
Classifier criteria. Access control lists and Quality of Service policies cannot filter on the following combinations of classifier criteria:
—VLAN ID with source or destination IP address.
—Protocol with source or destination IP address
This rule applies whether the criteria are in the same classifier or in different classifiers applied to the same access control list or Quality of Service policy.
Spanning tree and LACP trunks. A spanning tree protocol on a switch with two or more LACP trunks uses the trunk ID number to select a trunk to place in the blocking state if the trunks form a network loop. The trunk ID number is automatically assigned by the management software when an aggregator is created, starting with 0 (zero) and incremented by 1 with each new aggregator. The lower the trunk ID number, the higher the priority. For instance, if a switch has two LACP trunks, a spanning tree protocol will block the ports of the trunk with the higher ID number (lower priority) should it determine that the trunks form a loop. (4261)
Denial of Service defense mechanisms. The operation of a Denial or Service defense mechanism on the switch might be unpredictable when a defense is assigned to more than one port or when more than one defense is assigned to the same port. This issue can be avoided by not assigning a defense mechanism to more than one port or more than one defense mechanism to a port. This issue is limited to the
QoS policies and unicast and multicast addresses. The filtering properties of a QoS policy are designed for known unicast addresses. The behavior of a policy may be unpredictable if it filters on unknown unicast addresses or known or unknown multicast addresses. (3196)
Lowest numbered port in an LACP aggregator. You cannot delete the lowest numbered port from an LACP aggregator, referred to as the base port, or add a port to an aggregator that is below the base port. The OperKey parameter for the ports in an aggregator is based on the lowest numbered port and cannot be changed after the aggregator is created. For example, if you create an aggregator of ports 10 to 15 on a switch, you cannot later delete port 10 from the aggregator or add a port less than port 10. You must recreate the aggregator if you need to change the base port. (4369)
Saving a configuration. The management software on the switch may experience a problem if you save configuration changes in rapid succession. To avoid this issue, you should wait for
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