Bandwidth Oversubscription - Cisco ASR 1000 Series Hardware Installation Manual

Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers SPAs

Bandwidth Oversubscription

Oversubscribing the bandwidth limit recommendations of a router can result in decreased or degraded
performance. For this reason, it is important to determine the amount of bandwidth used by the SPAs on
the router and verify that the total bandwidth used by all SPAs does not exceed the recommended
bandwidth limit of the router.
Table 3-2
cumulative bandwidth (total bandwidth) for all ports available on the SPA.
Table 3-2 SPA Bandwidth Capacity
SPA
ATM SPAs
1-Port Clear Channel OC-3 ATM SPA
3-Port Clear Channel OC-3 ATM SPA
1-Port Clear Channel OC-12 ATM SPA
Ethernet SPAs
4-Port Fast Ethernet SPA
8-Port Fast Ethernet SPA
1-Port 10-Gigabit Ethernet SPA
1-Port 10-Gigabit Ethernet LAN/WAN-PHY SPA
2-Port Copper and Optical Gigabit Ethernet SPA
5-Port Gigabit Ethernet SPA
8-Port Gigabit Ethernet SPA
10-Port Gigabit Ethernet SPA
2-Port Synchronous Gigabit Ethernet SPA
Packet Over SONET SPAs
2-Port OC-3c/STM-1 POS SPA
4-Port OC-3c/STM-1 POS SPA
8-Port OC-3c/STM-1 POS SPA
2-Port OC-12c/STM-4 Multirate POS SPA
4-Port OC-12c/STM-4 Multirate POS SPA
8-Port OC-12c/STM-4 Multirate POS SPA
1-Port OC-48c/STM-16 POS SPA
2-Port OC-48c/STM-16 POS SPA
4-Port OC-48c/STM-16 POS SPA
OL-14126-15
provides information about the bandwidth for each port (per-port bandwidth) on a SPA and the
Per-Port Bandwidth
155.52 Mbps
155.52 Mbps
622.08 Mbps
100 Mbps
100 Mbps
10 Gbps
LAN Mode: 10 Gbps
WAN Mode: 9.2946
Gbps
1 Gbps
1 Gbps
1 Gbps
1 Gbps
1 Gbps
155.52 Mbps
155.52 Mbps
155.52 Mbps
155.52 Mbps or
622.08 Mbps
155.52 Mbps or
622.08 Mbps
155.52 Mbps or
622.08 Mbps
2.488 Gbps
2.488 Gbps
2.488 Gbps
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
Bandwidth Oversubscription
Number of Ports Total Bandwidth
1 155.52 Mbps
3 466.56 Mbps
1 622.08 Mbps
4 400 Mbps
8 800 Mbps
1 10 Gbps
1 LAN Mode: 10
Gbps
WAN Mode:
9.2946 Gbps
2 2 Gbps
5 5 Gbps
8 8 Gbps
10 10 Gbps
2 2 Gbps
2 311.04 Mbps
4 622.08 Mbps
8 1244.16 Mbps
2 1244.16 Mbps
4 2488.32 Mbps
8 4976.64 Mbps
1 2.488 Gbps
2 4976 Mbps
4 9.952 Mbps
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