The cards and ports that support 16-priority scheduling for network ingress traffic are listed in Table: Scheduling Modes Supported by Adapter Cards and Ports at Network Ingress.
For a detailed description of how 16-priority scheduling functions, refer to Network Egress 16-Priority Scheduling.
The 7705 SAR-8 Shelf V2 and 7705 SAR-18 adapter cards, and the 7705 SAR-M, 7705 SAR-H, 7705 SAR-Hc, 7705 SAR-A, 7705 SAR-Ax, and 7705 SAR-Wx ports provide sets of 8 queues for incoming traffic: 7 sets of queues for the 7705 SAR-8 Shelf V2, 17 sets of queues for the 7705 SAR-18, and 4 sets of queues for the 7705 SAR-M, 7705 SAR-H, 7705 SAR-Hc, 7705 SAR-A, 7705 SAR-Ax, and 7705 SAR-Wx.
Each set of queues is specific to a destination adapter card. For the 7705 SAR-8 Shelf V2, 6 sets of queues are automatically created for each access egress adapter card, plus 1 set of queues for multicast traffic. For the 7705 SAR-18, 16 sets of queues are automatically created, plus 1 set of queues for multicast traffic. For the 7705 SAR-M, 7705 SAR-H, 7705 SAR-Hc, 7705 SAR-A, 7705 SAR-Ax, and 7705 SAR-Wx, 3 sets of queues are automatically created, plus 1 set of queues for multicast traffic. For all these platforms, there is 1 additional set of queues for slow-path (control) traffic that is destined for the CSMs.
Each queue within each set provides buffer space for traffic isolation based on the classification carried out on EXP bits of the MPLS packet header (that is, the CoS setting).
All of the network ingress ports on an adapter card on a 7705 SAR-8 Shelf V2 or 7705 SAR-18 share the same sets of queues, which are created automatically. All of the network ingress ports across the entire 7705 SAR-M, 7705 SAR-H, 7705 SAR-Hc, 7705 SAR-A, 7705 SAR-Ax, or 7705 SAR-Wx also share the same sets of queues, which are created automatically.