Traffic Groupings and Creating a QoS Policy 103

Table 26 Traffic Groupings by Precedence (continued)

Destination Address

Packet Priority

Physical/Logical

MAC-based Groupings

Groupings

Groupings

 

 

 

Blackhole

 

 

Broadcast/unknown rate

 

 

limiting

 

 

 

 

 

MAC-Based Traffic QoS profiles can be assigned to destination MAC addresses. The various Groupings options that fall into this category are as follows:

Permanent

Dynamic

Blackhole

Broadcast/unknown rate limiting

MAC-based traffic groupings are configured using the following command:

create fdbentry <mac_address> vlan <name> [blackhole port

<portlist> dynamic] qosprofile <qosname>

Permanent MAC addresses

Permanent MAC addresses can be assigned a QoS profile whenever traffic is destined to the MAC address. This can be done when you create a permanent FDB entry. For example:

create fdbentry 00:11:22:33:44:55 vlan default port 1

qosprofile qp2

Dynamic MAC Addresses

Dynamic MAC addresses can be assigned a QoS profile whenever traffic is destined to the MAC address. For any port on which the specified MAC address is learned in the specified VLAN, the port is assigned the specified QoS profile. For example:

create fdbentry 00:11:22:33:44:55 vlan default dynamic

qosprofile qp3

The QoS profile is assigned when the MAC address is learned. If the MAC address entry already exists in the FDB, you can clear the forwarding database so that the QoS profile can be applied when the entry is added again.

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3Com 9100 manual Permanent MAC addresses, Dynamic MAC Addresses