Cisco XR 12000 Series User Manual
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Cisco XR 12000 Series Router SIP and SPA Hardware Installation Guide
OL-17438-04
Chapter 2 Overview: Cisco XR 12000 Series Router Shared Port Adapters
Bandwidth Oversubscription
Note
In Cisco IOS XR software release 3.9.1 or prior, the full-rate SPAs need to be positioned in bay 0 and 1.
provides information about the bandwidth for each port (per-port bandwidth) on a SPA, as well
as the cumulative bandwidth (total bandwidth) for all ports available on the SPA.
Table 2-2
SPA Bandwidth Capacity
SPA
Per-Port Bandwidth
Number
of Ports
Total Bandwidth
2-Port Channelized T3 SPA
44.736 Mbps
2
89.47 Mbps
4-Port Channelized T3 SPA
44.736 Mbps
4
178.94 Mbps
2-Port Clear Channel T3/E3 SPA
44.736 Mbps (T3)
34.368 Mbps (E3)
2
89.47 Mbps (T3)
68.74 Mbps (E3)
4-Port Clear Channel T3/E3 SPA
44.736 Mbps (T3)
34.368 Mbps (E3)
4
178.94 Mbps (T3)
137.47 Mbps (E3)
8-Port Channelized T1/E1 SPA
1.544 Mbps (T1)
2.048 Mbps (E1)
8
12.35 Mbps (T1)
16.38 Mbps (E1)
1-Port 10-Gigabit Ethernet SPA
10 Gbps
1
10 Gbps
5-Port Gigabit Ethernet SPA
1 Gbps
5
5 Gbps
10-Port Gigabit Ethernet SPA
1 Gbps
10
10 Gbps
1-Port Channelized STM-1/OC-3 SPA
155.52 Mbps
1
155.52 Mbps
1-Port Channelized STM-4/OC-12 SPA
622.08 Mbps
1
622.08 Mbps
1-Port Channelized STM-16/OC-48 SPA
2.488 Gbps
1
2.488 Gbps
1-Port OC-192/STM-64 POS SPA
9.953 Gbps
1
9.953 Gbps
4-Port OC-3/STM-1 POS SPA
155.52 Mbps
4
622.08 Mbps
8-Port OC-3 STM-1/OC-12 STM-4 POS SPA 155.52 Mbps or
622.08 Mbps
8
5 Gbps
1
1-Port OC-12/STM-4 POS SPA
622.08 Mbps
1
622.08 Mbps
1-Port OC-48/STM-16 POS SPA
2.488 Gbps
1
2.488 Gbps
4-Port OC-48/STM-16 POS/RPR SPA
2.488 Gbps
4
10 Gbps
2-Port OC48-POS/RPR SPA
2.488 Gbps
2
4.976 Gbps
1-Port Clear Channel OC-3 ATM SPA
155.52 Mbps
1
155.52 Mbps
3-Port Clear Channel OC-3 ATM SPA
155.52 Mbps
3
466.56 Mbps
1-Port Clear Channel OC-12 ATM SPA
622.08 Mbps
1
622.08 Mbps
2-Port Channelized T3/E3 ATM CEoP SPA
44.210 Mbps
34.010 Mbps
2
88.42 Mbps
68.02 Mbps
24-Port Channelized T1/E1/J1 ATM CEoP
SPA
1.544 Mbps
2.048 Mbps
24
37.056 Mbps
49.152 Mbps
1-Port Channelized OC-3 ATM CEoP SPA
155.52 Mbps
1
155.52 Mbps