how can we set vlan priority at socket level

[swadhin]

hi all,

i want to set vlan priority per socket.....but im not getting how
to....

can anyone please help me in this.....

how can we set vlan priority at socket level


regards,
jyoti

[Pascal Hambourg]

Hello,

Post by swadhin
how can we set vlan priority at socket level

On which operating system ?

For instance, on Linux, you could set the skb-priority field with the
SO_PRIORITY socket option. Then, with the set_egress_map option of the
vconfig utility, you could set the VLAN priority vlan-qos field in
outbound packets according to the skb-priority field.

[swadhin]

Post by Pascal Hambourg
Hello,

Post by swadhin
how can we set vlan priority at socket level

On which operating system ?
For instance, on Linux, you could set the skb-priority field with the
SO_PRIORITY socket option. Then, with the set_egress_map option of the
vconfig utility, you could set the VLAN priority vlan-qos field in
outbound packets according to the skb-priority field.

[swadhin]

thanks for your replay....

will this code work....

int opt = PRIORITY << 5;
setsockopt(mysocks[i], SOL_IP, IP_TOS, &opt, sizeof(opt));
opt = PRIORITY;
setsockopt(mysocks[i], SOL_SOCKET, SO_PRIORITY, &opt, sizeof(opt));


can u please tell detailly....

thanks,
jyoti
---------------------------------------------------------------

Post by Pascal Hambourg
Hello,

Post by swadhin
how can we set vlan priority at socket level

On which operating system ?
For instance, on Linux, you could set the skb-priority field with the
SO_PRIORITY socket option. Then, with the set_egress_map option of the
vconfig utility, you could set the VLAN priority vlan-qos field in
outbound packets according to the skb-priority field.

[swadhin]

hi Pascal,

as we suggested below if we set the option......then is that will be
per interface or per socket...

i want to set the VLAN priority per Socket not per Interface.....

regards,
jyoti

Post by Pascal Hambourg
Hello,

Post by swadhin
how can we set vlan priority at socket level

On which operating system ?
For instance, on Linux, you could set the skb-priority field with the
SO_PRIORITY socket option. Then, with the set_egress_map option of the
vconfig utility, you could set the VLAN priority vlan-qos field in
outbound packets according to the skb-priority field.

[Pascal Hambourg]

Post by swadhin
as we suggested below if we set the option......then is that will be
per interface or per socket...

Per socket, and possibly per interface.
SO_PRIORITY sets the packet priority for a given socket. set_egress_map
sets the VLAN priority for a given VLAN interface and packet priority.

Post by swadhin
i want to set the VLAN priority per Socket not per Interface.....

If your box has several VLAN interface, then you need to set the same
set_egress_map options in all the VLAN interface.

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