Cisco 7600 SIP 200 Hardware Installation Guide - Page 48

Checking Hardware and Software Compatibility, Bandwidth Oversubscription

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Page 48 highlights

Checking Hardware and Software Compatibility Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters • 1-Port Channelized OC-3 STM1 ATM CEoP SPA Overview, page 3-72 • 24-Port Channelized T1/E1 ATM CEoP SPA Overview, page 3-73 • 2-Port Channelized T3/E3 ATM CEoP SPA Overview, page 3-79 Checking Hardware and Software Compatibility To check the minimum software requirements of Cisco IOS software with the hardware installed on your router, Cisco maintains the Software Advisor tool on Cisco.com. This tool does not verify whether SPA interface processors (SIPs) or SPAs within a system are compatible, but it does provide the minimum Cisco IOS requirements for individual hardware modules or components. Note Access to this tool is limited to users with Cisco.com login accounts. To access Software Advisor, click Login at Cisco.com, type "Software Advisor" in the SEARCH box, and click GO. Click the link for the Software Advisor tool. Choose a product family or enter a specific product number to search for the minimum supported software release needed for your hardware. 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. For information on SIP bandwidth, see Chapter 2, "SIP Summary." Table 3-1 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 3-1 SPA Bandwidth Capacity SPA Per-Port Bandwidth 2-Port Channelized T3 SPA 44.736 Mbps 4-Port Channelized T3 SPA 44.736 Mbps 8-Port Channelized T1/E1 SPA 1.544 Mbps (T1) 2.048 Mbps (E1) 2-Port OC-3c/STM-1 ATM SPA 155.52 Mbps 4-Port OC-3c/STM-1 ATM SPA 155.52 Mbps 1-Port Channelized STM-1/OC-3 SPA 155.52 Mbps 1-Port Clear Channel OC-3 ATM SPA 155.52 Mbps V2 Number of Ports 2 4 8 2 4 1 1 Total Bandwidth 89.47 Mbps 178.94 Mbps 12.35 Mbps (T1) 16.38 Mbps (E1) 311.04 Mbps 622.08 Mbps 155.52 Mbps 155.52 Mbps Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide 3-2 OL-5052-14

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3-2
Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide
OL-5052-14
Chapter 3
Overview: Cisco 7600 Series Router Shared Port Adapters
Checking Hardware and Software Compatibility
•
1-Port Channelized OC-3 STM1 ATM CEoP SPA Overview, page 3-72
•
24-Port Channelized T1/E1 ATM CEoP SPA Overview, page 3-73
•
2-Port Channelized T3/E3 ATM CEoP SPA Overview, page 3-79
Checking Hardware and Software Compatibility
To check the minimum software requirements of Cisco IOS software with the hardware installed on your
router, Cisco maintains the Software Advisor tool on Cisco.com. This tool does not verify whether SPA
interface processors (SIPs) or SPAs within a system are compatible, but it does provide the minimum
Cisco IOS requirements for individual hardware modules or components.
Note
Access to this tool is limited to users with Cisco.com login accounts.
To access Software Advisor, click
Login
at Cisco.com, type “Software Advisor” in the SEARCH box,
and click
GO
. Click the link for the Software Advisor tool.
Choose a product family or enter a specific product number to search for the minimum supported
software release needed for your hardware.
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. For information
on SIP bandwidth, see
Chapter 2, “SIP Summary.”
Table 3-1
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 3-1
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
8-Port Channelized T1/E1 SPA
1.544 Mbps (T1)
2.048 Mbps (E1)
8
12.35 Mbps (T1)
16.38 Mbps (E1)
2-Port OC-3c/STM-1 ATM SPA
155.52 Mbps
2
311.04 Mbps
4-Port OC-3c/STM-1 ATM SPA
155.52 Mbps
4
622.08 Mbps
1-Port Channelized STM-1/OC-3 SPA
155.52 Mbps
1
155.52 Mbps
1-Port Clear Channel OC-3 ATM SPA
V2
155.52 Mbps
1
155.52 Mbps