ASBCE 8.1.3 Rate Limiting

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  • avc865639569786
    Aspiring Member
    • Jun 2025
    • 1

    ASBCE 8.1.3 Rate Limiting

    Hi Everyone,

    I am experiencing a problem where Avaya SBCE on release 8.1.3 will intermittently (up to 4 times a day) implement UDP_Rate_Limit commands using IPTABLES and this causes the links to SIP entities, including the Session Manager link to drop due to OPTIONS messages not reaching the SBC. Has anyone seen this before?
    • Dos Rate limiting settings in GUI are all set to Aleet Only.
    • Avaya has confirmed the Firewall.sh file has a default Rate Limit set to 400 and 1200 burst and will implement rate limiting. This will implement rate limiting even if the config is Alert Only.
    The SIP entities are down for less than a minute and then everything stabilizies again.

    I am suspecting a flood on the network or Fragmentation, but cannot confirm it.

    Any help would be appreciated.
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