2-3
Bandwidth Oversubscription
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 SIPs
or SPAs within a system are compatible, but it does provide the minimum Cisco IOS requirements for
individual hardware modules or components.
Note
Login at Cisco.com, type “Software Advisor” in the SEARCH box,
and click GO
Bandwidth Oversubscription
Note The SIP-600 [10G SIP], SIP-401 [2.5G SIP], SIP-501 [5G SIP], and SIP-601 [10G SIP] can support up
to 20G of installed SPAs, but the bandwidth through the engine and the fabric is no more than 10G
(SIP-600 or SIP-601). The bandwidth through the engine and the fabric is no more than 5G for the
SIP-501 and is no more than 2.5G for the SIP-401.
Table 2-2 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.
SPA Bandwidth Capacity
SPA Per-Port Bandwidth
Number
of Ports Total Bandwidth
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