Bandwidth Oversubscription; C H A P T E R 3 Overview: Cisco Asr 14000 Series Router Shared Port Adapters - Cisco ASR 14000 Series Hardware Installation Manual

Bandwidth Oversubscription

Table 3-1 SPA Summary (continued)
SPA
1-Port OC-192c/STM-64 POS/RPR VSR Optics SPA
5-Port Gigabit Ethernet SPA
8-Port Gigabit Ethernet SPA
10-Port Gigabit Ethernet SPA
1-Port 10-Gigabit Ethernet SPA
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. It is also important not to exceed the bandwidth of the SIP.
Cisco ASR14K-20XGE-FL SIP can offer line rate forwarding with NO oversubscription.
Note
Table 3-2
cumulative bandwidth (total bandwidth) for all ports available on the SPA.
Table 3-2 SPA Bandwidth Capacity
SPA
4-Port OC-3c/STM-1 POS SPA
8-Port OC-12c/STM-4 Multirate POS SPA
2-Port OC-48c/STM-16 POS SPA
4-Port OC-48c/STM-16 POS SPA
1-Port OC-192c/STM-64 POS/RPR XFP SPA
1-Port OC-192c/STM-64 POS/RPR VSR Optics SPA
5-Port Gigabit Ethernet SPA
8-Port Gigabit Ethernet SPA
10-Port Gigabit Ethernet SPA
1-Port 10-Gigabit Ethernet SPA
1. Total bandwidth value assumes eight OC-12c/STM-4 optics modules.
Cisco ASR 14000 Series Router PLIM, SIP, and SPA Hardware Installation Guide
3-2
SPA Part Number
SPA-OC192POS-VSR
SPA-5X1GE-V2
SPA-8X1GE
SPA-8X1GE-V2
SPA-10X1GE-V2
SPA-1X10GE-L-V2
SPA-1X10GE-WL-V2
provides information about the bandwidth for each port (per-port bandwidth) on a SPA and the
Chapter 3 Overview: Cisco ASR 14000 Series Router Shared Port Adapters
Number
of Ports
1
5
8
10
1
Per-Port Bandwidth Number of Ports
155.52 Mbps 4
155.52 Mbps or 8
622.08 Mbps
2.488 Gbps 2
2.488 Gbps 4
10 Gbps 1
10 Gbps 1
1 Gbps 5
1 Gbps 8
1 Gbps 10
10 Gbps 1
Minimum
Minimum Cisco Hardware
IOS XR Software Revision
Release 3.7.1 1.0
Release 3.7.1 1.0
Release 3.7.1 1.0
Release 3.7.1 1.0
Release 3.7.1 1.0
Total Bandwidth
622.08 Mbps
1
5 Gbps
5 Gbps
10 Gbps
10 Gbps
10 Gbps
5 Gbps
8 Gbps
10 Gbps
10 Gbps
OL-17456-01