84 SBC session border controllers
4.1.6.4 QoS and bandwidth control
In the section "QoS and bandwidth control", Quality of Service (QoS) functions are configured.
Ethernet switch –> QoS and bandwidth control
– VLAN priority (default) — 802.1р priority assigned to untagged packets, received by this port. If 802.1р or IP
diffserv priority is already assigned to the packet, this setting will not be used ('default vlan priority' will not
be applied to packets containing IP header, when one of the QoS modes is in use: DSCP only, DSCP preferred,
802.1p preferred, and also to untagged packets;
– QoS mode — QoS operation mode:
– DSCP only — distribute packets into queues based on IP diffserv priority only;
– 802.1p only — distribute packets into queues based on 802.1р priority only;
– DSCP, 802.1p — distribute packets into queues based on IP diffserv and 802.1р priorities, if both
priorities are present in the packet, IP diffserv priority is used for queuing purposes;
– 802.1p, DSCP — distribute packets into queues based on IP diffserv and 802.1р priorities, if both
priorities are present in the packet, 802.1p priority is used for queuing purposes;
– Remap 802.1p priority — remap 802.1р priorities for untagged packets. Thus, a new value may be assigned
for each priority received in VLAN packet.
– Ingress packets limit mode — restriction mode for traffic coming to the port:
– Off — no limit;
– All packets — restrict all traffic;
– BroadMultFlood — multicast, broadcast, and flooded unicast traffic will be restricted;
– BroadMult — multicast and broadcast traffic will be restricted;
– Broad — only broadcast traffic will be restricted;
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