The Multiservice Integrated Services Module (MS-ISM) card contains two ISA2 processing modules providing increased packet processing throughput and scale compared to the MS-ISA platform. Each ISA2 processing module supports a 40G datapath for packet processing; as with ISA1 the actual throughput varies by function. The processed rate (up to 40 Gb/s) is the sum of the upstream and downstream rates (for example, 10 Gb/s up and 30 Gb/s down, or 20 Gb/s up and 20 Gb/s down).
The IOM base card is an imm-2pac-fp3 with two embedded positions for ISA2s. Hot swap or field replacement of the ISA2s within an MS-ISM assembly is not supported. IMM cards offering 10x10GE media plus one ISA2, or 1x100GE media plus one ISA2.
Figure: MS-ISM with ISA2s shows the ISA2 processing modules in the MG-ISM card.
The MS-ISA2 remains as a common base hardware assembly to be used as a generic CPU processing platform for multiple applications. The functions supported on the MS-ISA2 and MS-ISM include the following software based capabilities:
Application Assurance (AA)
Tunnel (IPsec, GRE)
Broadband (NAT, LNS)
Video (FCC, RET)