User Manual for the NETGEAR 7200 Series Layer 2 Managed Switch Software Version 4
Quality of Service (QoS) Commands 10-1
202-10102-01, May 2005
Chapter 10
Quality of Service (QoS) Commands
This chapter provides a detailed explanation of the Quality of Service (QOS) commands. The
following QOS commands are available in the software QOS module.
The commands are divided into these different groups:
• Show commands are used to display device settings, statistics and other information.
• Configuration Commands are used to configure features and options of the switch. For every
configuration command there is a show command that will display the configuration setting.
MAC Access Control List (ACL) Commands
MAC Access Control Lists (ACLs) ensure that only authorized users have access to specific
resources while blocking off any unwarranted attempts to reach network resources.
• The maximum number of ACLs of any type that can be created is 100.
• Only Ethernet II frame types are supported.
• The maximum number of rules per MAC ACL translates into the number of hardware
classifier entries used when an ACL is attached to an interface. Increasing these values in the
software increases the RAM and NVSTORE usage.
• ACLs are configured separately for Layer 2 and Layer 3/Layer 4. Some types of hardware do
not allow both types of ACLs to be applied to the same interface.
• Wildcard masking for ACLs operates differently from a subnet mask. A wildcard mask is in
essence the inverse of a subnet mask. With a subnet mask, the mask has ones (1's) in the bit
positions that are used for the network address, and has zeros (0's) for the bit positions that are
not used. In contrast, a wildcard mask has (0’s) in a bit position that must be checked. A ‘1’ in
a bit position of the ACL mask indicates the corresponding bit can be ignored.
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