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Sample Behavior Aggregate Classification

Table 1 shows the device forwarding classes (FCs) associated with each well-known Differentiated Services (DiffServ) code point (DSCP) and the resources assigned to the output queues for a sample DiffServ CoS implementation. This example assigns expedited forwarding to queue 1 and a subset of the assured FCs (afx) to queue 2, and distributes resources among all four forwarding classes. Other DiffServ-based implementations are possible.

Table 1: Sample Behavior Aggregate Classification Forwarding Classes and Queues

DSCP and DSCP IPv6 Alias	DSCP and DSCP IPv6 Bits	Forwarding Class	Packet Loss Priority	Queue
ef	101110	expedited-forwarding	low	1
af11	001010	assured-forwarding	low	2
af12	001100	assured-forwarding	high	2
af13	001110	assured-forwarding	high	2
af21	010010	best-effort	low	0
af22	010100	best-effort	low	0
af23	010110	best-effort	low	0
af31	011010	best-effort	low	0
af32	011100	best-effort	low	0
af33	011110	best-effort	low	0
af41	100010	best-effort	low	0
af42	100100	best-effort	low	0
af43	100110	best-effort	low	0
be	000000	best-effort	low	0
cs1	0010000	best-effort	low	0
cs2	010000	best-effort	low	0
cs3	011000	best-effort	low	0
cs4	100000	best-effort	low	0
cs5	101000	best-effort	low	0
nc1/cs6	110000=	network-control	low	3
nc2/cs7	111000=	network-control	low	3
other	—	best-effort	low	0

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Sample Behavior Aggregate Classification

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Published: 2012-06-29