egress- qos -map QOS-MAP – defines a mapping of Linux internal packet priority to VLAN header prio field but for outgoing frames. The format is the same as for ingress-qos-map. The format is the same as for ingress-qos-map.
IP -LINK(8) Linux : IP -LINK(8) NAME … egress- qos -map QOS-MAP – defines a mapping of Linux internal packet priority to VLAN header prio field but for outgoing frames. The format is the same as for ingress-qos-map. Linux packet priority can be set by iptables(8): iptables-t mangle …
egress- qos -map QOS-MAP – defines a mapping of Linux internal packet priority to VLAN header prio field but for outgoing frames. The format is the same as for ingress-qos-map. The format is the same as for ingress-qos-map.
5/9/2018 · QoS as well as VLANs are implemented in Linux and available via e. g. the startup script. On layer 2 the internal skb prios can be mapped to VLAN prios: ip link add link name type vlan id egress- qos -map E.g.: ip link add link eth0 name v1 type vlan 1 egress 0:1 1:2 4:4, The egress- qos -map argument defines a mapping of Linux internal packet priority (SO_PRORITY) to VLAN header PCP field for outgoing frames. The format is FROM:TO with multiple mappings separated by spaces. This example maps SO_PRIORITY 2 into PCP 2 and SO_PRIORITY 3 into PCP 3. For further information about command arguments, see ip .
12/3/2018 · References. RDMA/RoCE Solutions Setup. Two hosts connected via a switch or back to back. This example was given based on servers with CentoOS 7.1, other distributions should be similar.
ip link help – display help TYPE specifies which help of link type to dislpay. GROUP may be a number or a string from the file /etc/iproute2/group which can be manually filled. EXAMPLES ip link show Shows the state of all network interfaces on the system. ip link show type bridge Shows the bridge devices.
Now we know why we need to map sk_priority 6 to VLAN priority 5 if we use a DSCP value of 20! Conclusion. If DSCP is specified (using IP _TOS), then sk_priority will be set appropriately by the kernel, but unless SO_PRIORITY is set as well, there is no simple way to know exactly what the sk_priority value is in order to set the VLAN egress- qos -map correctly.
Steps to reproduce: ip link add dev veth90 type veth ip link add link veth90 name veth90.4000 type vlan ingress- qos -map 1:2 egress- qos -map 2:1 id 4000 ip -oneline -details link show veth90.4000 Expected behavior: one-line output with ” instead of newline characters (per man page which says ‘-o, -oneline – output each record on a single line’).
