Cisco ASR 1000 Configuration Guide

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Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
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Chapter 27 Classifying and Scheduling Packets for ASR 1000 Series
Information About Ingress Scheduling
proportional to its interface bandwidth. In Cisco IOS XE Release 3.1S, the SIP-10 scheduler, SIP-40
scheduler, and ESP scheduler ran in strict-priority mode. In this mode, if the high-priority queues of
either a participating SPA port or a participating SIP has data to send, these queues will be scheduled
first. The remaining bandwidth, if any, will then be shared among the low-priority buffers at a weight
that is proportional to the interface bandwidth or at a weight that is equal to the weight of all the SIPs.
The supported excess weight range from Cisco IOS XE Release 3.1S and onwards for intra-SIP
scheduling is as follows:
• SIP-10— 40 to 10000
• SIP-40— 40 to 10000
The supported minimum bandwidth range from Cisco IOS XE Release 3.1S and onwards for Inter-SIP
scheduling depends on the combination of SIP and ESP. Following is the range for minimum bandwidth
configuration for various combination of SIP and ESP:
• SIP-10 with all ESP: 1 Mbps to 11.2 Gbps
• SIP-40 with ESP10/ESP20: 1 Mbps to 11.2 Gbps
• SIP-40 with ESP40: 1Mbps to 23 Gbps on each ESI link
The supported excess weight range for inter carrier card scheduling (ESP level) is as follows:
• All ESPs— 50 to 100
Configuring Intra-CC Scheduling
By default, ingress packets that are classified as high-priority by a SIP or SPA, are processed first, and
then sent. After processing the high-priority packets, the available excess bandwidth can be shared by
low-priority packets depending on the weight assigned to the interface or to the SPA. Execute the
following commands to configure the weight on an interface or for the entire SPA:
SUMMARY STEPS
1. enable
2. configure terminal
3. interface gigabitethernet 0/0/2
4. plim qos input [wieght weight]
5. hw-module subslot slot/subslot qos input [weight weight]
6. show platform hardware {slot/subslot/port} plim qos input bandwidth

Cisco ASR 1000 Specifications

General

Operating System	Cisco IOS XE
Interfaces	10 Gigabit Ethernet
Power Supply	AC or DC
Number of Total Expansion Slots	Varies by model
Management Port	Console
Redundant Power Supply Supported	Yes
Width	17.5 inches
Memory	Varies by model
Storage	Varies by model
Dimensions (H x W x D)	Varies by model
Weight	Varies by model
Operating Temperature	32°F to 104°F (0°C to 40°C)
Humidity	5% to 95% non-condensing
MTBF	Varies by model
Redundancy	Redundant power supplies, fans, and route processors (depending on model)