https://community.extremenetworks.com/t5/faqs/how-to-prioritize-traffic-based-on-dscp-marking-on-securestacks/m-p/48685#M543 Article ID: 7589 <BR /> <BR /> <B>Products</B><BR /> SecureStack C3<BR /> SecureStack C2<BR /> SecureStack B3<BR /> SecureStack B2 <BR /> <BR /> <B>Protocols/Features</B><BR /> Policy<BR /> VoIP<BR /> DSCP<BR /> CoS <BR /> <BR /> <B>Goals</B><BR /> Prioritize incoming traffic based on DSCP marking<BR /> Sample configuration <BR /> <BR /> <B>Cause</B><BR /> This SecureStack policy configuration will, for all ports, prioritize incoming frames - VLAN-tagged or not - which have DSCP value 46 or 48 (<A href="http://bit.ly/1rOVKny" target="_blank" rel="nofollow noreferrer noopener">5811</A>). <BR /> <B>Note1:</B> In the applied network, those values are used by the routers to identify Voice over IP traffic. This will not be true of all networks. <BR /> <B>Note2:</B> SecureStack B3 and B2 units will require a Policy License (<A href="http://bit.ly/Ig6wNS" target="_blank" rel="nofollow noreferrer noopener">5781</A>) before this configuration may be applied to them. <BR /> <BR /> <B>Solution</B>set policy profile 1 name VoIP<BR /> set policy port *.*.* 1<BR /> set policy rule 1 iptos 176 mask 6 cos 5<BR /> set policy rule 1 iptos 184 mask 6 cos 5<BR /> By default the outgoing prioritized (priority 5) frames will hit transmit queue#4, while non-prioritized (priority 0) traffic will hit transmit queue#1.<BR /> Queue#1 by default receives no service if anything is waiting in queue#4 ('show port txq').<BR /> If outgoing frames are VLAN-tagged, the tag of affected frames will carry a Priority of 5. <BR /> <BR /> The specific rules you use will depend upon which bits of the TOS byte you wish to examine: <UL>If you want DSCP values 44 and 46 and don't care about the remaining two TOS bits: set policy rule 1 iptos 176 mask 6 cos 5 [= TOS bits 101100xx] set policy rule 1 iptos 184 mask 6 cos 5 [= TOS bits 101110xx]</UL> <UL>If you want DSCP values 44 and 46 and want to ensure that the remaining two TOS bits are zero: set policy rule 1 iptos 176 mask 8 cos 5 [= TOS bits 10110000] set policy rule 1 iptos 184 mask 8 cos 5 [= TOS bits 10111000]</UL> <UL>If you want TOS values 44 and 46: set policy rule 1 iptos 46 mask 8 cos 5 [= TOS bits 00101100] set policy rule 1 iptos 48 mask 8 cos 5 [= TOS bits 00101110]</UL> Please <A href="http://www.enterasys.com/support/contact-support.aspx" target="_blank" rel="nofollow noreferrer noopener">contact Enterasys Networks Technical Services</A> for further assistance, as necessary. Wed, 04 Dec 2013 01:46:00 GMT FAQ_User 2013-12-04T01:46:00Z https://community.extremenetworks.com/t5/faqs/how-to-prioritize-traffic-based-on-dscp-marking-on-securestacks/m-p/48685#M543 Article ID: 7589 <BR /> <BR /> <B>Products</B><BR /> SecureStack C3<BR /> SecureStack C2<BR /> SecureStack B3<BR /> SecureStack B2 <BR /> <BR /> <B>Protocols/Features</B><BR /> Policy<BR /> VoIP<BR /> DSCP<BR /> CoS <BR /> <BR /> <B>Goals</B><BR /> Prioritize incoming traffic based on DSCP marking<BR /> Sample configuration <BR /> <BR /> <B>Cause</B><BR /> This SecureStack policy configuration will, for all ports, prioritize incoming frames - VLAN-tagged or not - which have DSCP value 46 or 48 (<A href="http://bit.ly/1rOVKny" target="_blank" rel="nofollow noreferrer noopener">5811</A>). <BR /> <B>Note1:</B> In the applied network, those values are used by the routers to identify Voice over IP traffic. This will not be true of all networks. <BR /> <B>Note2:</B> SecureStack B3 and B2 units will require a Policy License (<A href="http://bit.ly/Ig6wNS" target="_blank" rel="nofollow noreferrer noopener">5781</A>) before this configuration may be applied to them. <BR /> <BR /> <B>Solution</B>set policy profile 1 name VoIP<BR /> set policy port *.*.* 1<BR /> set policy rule 1 iptos 176 mask 6 cos 5<BR /> set policy rule 1 iptos 184 mask 6 cos 5<BR /> By default the outgoing prioritized (priority 5) frames will hit transmit queue#4, while non-prioritized (priority 0) traffic will hit transmit queue#1.<BR /> Queue#1 by default receives no service if anything is waiting in queue#4 ('show port txq').<BR /> If outgoing frames are VLAN-tagged, the tag of affected frames will carry a Priority of 5. <BR /> <BR /> The specific rules you use will depend upon which bits of the TOS byte you wish to examine: <UL>If you want DSCP values 44 and 46 and don't care about the remaining two TOS bits: set policy rule 1 iptos 176 mask 6 cos 5 [= TOS bits 101100xx] set policy rule 1 iptos 184 mask 6 cos 5 [= TOS bits 101110xx]</UL> <UL>If you want DSCP values 44 and 46 and want to ensure that the remaining two TOS bits are zero: set policy rule 1 iptos 176 mask 8 cos 5 [= TOS bits 10110000] set policy rule 1 iptos 184 mask 8 cos 5 [= TOS bits 10111000]</UL> <UL>If you want TOS values 44 and 46: set policy rule 1 iptos 46 mask 8 cos 5 [= TOS bits 00101100] set policy rule 1 iptos 48 mask 8 cos 5 [= TOS bits 00101110]</UL> Please <A href="http://www.enterasys.com/support/contact-support.aspx" target="_blank" rel="nofollow noreferrer noopener">contact Enterasys Networks Technical Services</A> for further assistance, as necessary. Wed, 04 Dec 2013 01:46:00 GMT https://community.extremenetworks.com/t5/faqs/how-to-prioritize-traffic-based-on-dscp-marking-on-securestacks/m-p/48685#M543 FAQ_User 2013-12-04T01:46:00Z