Specifications

Port Priority and Classification Configuration Commands
Classification Precedence Rules
9-34 Matrix E1 Series (1G58x-09 and 1H582-xx) Configuration Guide
9.3.5 Classification Precedence Rules
When there are multiple classifications assigned to a Matrix E1 device, the device must determine
which classification takes precedence according to classification precedence rules. By default, the
order of precedence is predefined in the Matrix E1 device. When the priority tag override feature is
enabled on a port as described in Section 9.3.4.8, 802.1Q frame tags received on that port are
assigned a lower precedence. This allows MAC address matching and other types of priority
classifications to receive higher precedence.
Table 9-2 lists the ISO layer, associated classification, default precedence levels, and precedence
levels with priority tag override enabled.
NOTE: It is important that you have a comprehensive understanding of the precedence
concept before configuring the Matrix E1 device, as these rules can have a significant
impact on the network operation.
NOTE: In Ta ble 9 -2 , the following applies:
- Exact Match indicates a match of an explicitly defined address.
- Best Match indicates a match of an entire subnet, or range of addresses within a
subnet.
Table 9-2 Classification Precedence
Classification Type (IP)
Precedence Level
(Default)
With 802.1Q
Priority Tag
Override
802.1Q frame tag received 1 12
Source MAC Address Best Match 2 1
Destination MAC Address Best Match 3 2
Source IP Address Exact Match 4 3
Source IP Address Best Match (Subnet) 5 4
Destination IP Address Exact Match 6 5
Destination IP Address Best Match (Subnet) 7 6
UDP / TCP Port Source 8 7