CoS & ToS
– both CoS and ToS services are active, but if a packet containing
both priority fields comes in, the priority is selected by the ToS field.
Default priority
– priority by default. When the QoS mechanism is active and a
packet that does not contain a priority field comes in, it is given the corresponding
default priority by CoS and it is treated as a tagged packet with the appropriate
priority.
There are 8 CoS priorities. Priorities are numbered from 0 – lowest priority to 7
– highest priority.
5.3.17.2 Speed limit
QoS → Rate Limit
Figure 5.3.17.2.1 Configuring speed limit
A configurable limit on the maximum receive and transmit rate for each port is
available.
RX limit
– limit of incoming traffic in Kbps
TX limit
– limit of outgoing traffic in Kbps
Note 1
: The speed limit is available in the range from 64 Kbps to 102400 Kbps for
FastEthernet ports and up to 256000 Kbps for Gigabit Ethernet ports.
Note 2
: If the port operates without limit, set the RX limit and TX limit fields to 0