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    Stateful Line Module Switchover Platform Considerations

    Stateful line module switchover is supported on all E120 and E320 routers that contain ES2 4G line modules installed with the ES2-ES1 Service IOA. See the E120 and E320 Module Guide for modules supported on the E120 and E320 Broadband Services Routers.

    Table 1 lists the line module, SRP module, and IOA slot combinations that support stateful switchover of line modules and stateful switchover for LNS sessions, when the router operates as an LNS device on one side of an L2TP tunnel.

    Table 1: Module Configurations Supported for Stateful Switchover of LNS Sessions

    Router Model

    SRP and SFM Model

    Number of L2TP tunnels and sessions

    Number of Active and Standby ES2-ES1 Service IOAs

    Downlink and Uplink LMs

    Support for Stateful Switchover of LNS Sessions

    E320

    SRP-100

    16,000 tunnels and 16,000 sessions

    2 Service IOAs (1 active and 1 standby)

    ES2 4G LM and GE-4 IOA

    Supported

    E320

    SRP-100

    16,000 tunnels and 32,000 sessions

    4 Service IOAs (2 active and 2 standby)

    ES2 4G LM and GE-4 IOA

    Supported

    E320

    SRP-320

    32,000 tunnels and 32,000 sessions

    4 Service IOAs (2 active and 2 standby)

    ES2 4G LM and GE-4 IOA

    Supported

    E120

    SRP-320

    16,000 tunnels and 16,000 sessions

    2 Service IOAs (1 active and 1 standby)

    ES2 10G LM and GE-8 IOA

    Not supported

    E120

    SRP-320

    32,000 tunnels and 32,000 sessions

    4 Service IOAs (2 active and 2 standby)

    ES2 10G LM and GE-8 IOA

    Not supported

    E120

    SRP-320

    16,000 tunnels and 16,000 sessions

    2 Service IOAs (1 active and 1 standby)

    ES2 4G LM and GE-8 IOA

    Supported

    E120

    SRP-320

    32,000 tunnels and 32,000 sessions

    4 Service IOAs (2 active and 2 standby)

    ES2 4G LM and GE-8 IOA

    Supported

    Published: 2014-08-20