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IP Media Support
Ethernet, Fast Ethernet, Gigabit Ethernet
ATM over T1, E1, OC-3 single mode, OC-3 multimode
SS7 over IP (SCTP, M2PA, M3UA, SUA) is supported over T1, E1, Ethernet, Fast
Ethernet, Gigabit Ethernet, and ATM OC-3 single mode and ATM OC-3 multimode. Support for
other media types can be considered upon request.
Capacity and performance notes:
Cisco 7507 and 7513 Router capacity and performance are based on:
Configured with RSP16 and VIP6-80 processors
MTP3 offload and xUA SCTP offload enabled
Dual Route Switch Processor (RSP) for redundancy
One IP VIP interface for network management
This results in four available slots for interface processors on the Cisco 7507 and 10
available slots for interface processors on the Cisco 7513.
Each VIP must be dedicated to a single signaling protocol (Low Speed Link [LSL], High
Speed Link [HSL], M2PA, M3UA, or SUA).
Individual links are capable of running at 1.0 Erlang.
Performance data listed in Table 4 is based on 100-byte average message signal unit
For the purposes of estimating MSUs-per-second performance, a packet that enters and
then exits the ITP is counted as a single MSU (not as two MSUs). Performance data in
Table 4 reflects this methodology.
For Cisco 7500 Series capacity planning, the rate of MSUs per second cannot exceed the
VIP line card or the central processor's MSUs-per-second capacity limits; for capacity
planning on the other platforms, the rate of MSUs per second cannot exceed the central
processor's MSUs-per-second capacity limits.
Multilayer routing introduces a typical 10 percent processor overhead. As the multilayer
routing requires the central RSP processor for routing, the feature is not compatible with the
High-Performance VIP-offload feature, which provides increased MSUs-per-second
capacity. The VIP offload NSO feature, however, is supported with multilayer routing.
GTT introduces up to 20 percent processor overhead. This applies to the Cisco 2651
Router. With VIP-offload enabled on the Cisco 7500 Series, this overhead only applies to
the M3UA and SUA signaling gateway protocols.
For GSM TCAP-segmented messages that require MO-Proxy for MLR operations,
extrapolation based on the percentage of traffic that requires MO-Proxy is used to estimate
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