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(0208R)
LW3817 11/02
Each queue can have traffic shaping for both inbound and outbound traffic shaping on queues classified by DSCP, ToS, or interfaces. Figure 6
shows DSCP-based traffic shaping.
Figure 6
DSCP-Based Traffic Shaping
BGP Policy Accounting Services
BGP policy accounting services uses the Border Gateway Protocol (BGP) policy accounting traffic index as the classification criterion to
perform services such as destination-sensitive billing/accounting based on the ultimate destination of a packet.
BGP policy accounting billing enables service providers to offer their customers differentiated billing options. For example, all traffic destined
for a particular set of autonomous systems for each customer could be accounted for at one rate and traffic going to other destinations could
be billed at a second rate. This feature is valuable because you may have a local peering agreement with another service provider who bills
at $5.00 per 100 MB and the other service provider bills at $7.00 per 100 MB. So now you can accurately bill back to customers the amount
of traffic they are sending to the different destinations.
Multiprotocol Label Switching (MPLS)
MPLS is fast becoming more critical in service-provider networks because of its scalability and traffic-engineering (TE) capabilities. The
Cisco 7600 supports the major MPLS functions compliant with standards, such as:
• Label imposition/disposition
• Label swapping
• Label Distribution Protocol (LDP)
• Ethernet over MPLS (EoMPLS)
• MPLS CoS
• MPLS/VPN
• MPLS TE (available mid-2003)
DSCP 40
Optical
Services
Module
DSCP 8
DSCP 0
20 Mbps
80 Mbps
Policy:
Normal – 20 Mbps Priority – 80 Mbps Critical – 120 Mbps
120 Mbps
