SBC session border controllers
173
Example
qos default 6
Packets for which no other rules are set are queued with priority 6.
qos type
This command allows you to set a rule by which to select the priority field for the package.
The traffic prioritization method will be chosen depending on the configured system rules (IEEE 802.1p/DSCP).
The system distinguishes the following traffic prioritization methods:
All the priorities are equal;
Packet selection according to IEEE 802.1p;
Packet selection only according to IP ToS (Type of Service) on 3 level — support for Differentiated
Services Codepoint (DSCP);
Interaction according to either 802.1p or DSCP/TOS;
Syntax
qos type <type>
Parameters
<type> — traffic prioritization method:
0 — all the priorities are equal;
1 — packet selection only by 802.1p only (Priority field in 802.1Q tag);
2 — packet selection only by DSCP/TOS (field Differentiated Services IP packet header, senior 6 bits);
3 — interaction either via 802.1p or DSCP/ToS.
Default value
By default all priorities are equal.
Command mode
CONFIG SWITCH
Example
qos type 2
Traffic prioritization will be done only via DSCP/ToS.
qos map
This command sets the parameters for the priority queue:
specifies the value of the field Differentiated Services IP packet header, senior 6 bits,
value of the Priority field in 802.1Q tag.
Based on the rules set by the qos type command and the specified priority values, packages are selected for this
priority queue.
The use of the negative form of the command (no) allows you to remove the entry from the queue settings table.
Syntax
[no] qos map <type> <field values> to <queue>
