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User-configurable physical MTU for individual links

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This patch allows users to specify the physical layer MTU for individual links
when in multipath mode. For example:

{
  "settings":
  {
    "defaultBondingPolicy": "custom-balance-xor",
    "policies":
    {
      "custom-balance-xor":
      {
        "basePolicy": "balance-xor",
        "failoverInterval": 5000,
        "links": {
          "weird_5g_link": { "mtu": 1300 },
          "enp5s0": { "mtu": 1400  }
        }
      }
    }
  }
}
This commit is contained in:
Joseph Henry 2023-01-11 20:12:15 -08:00 • committed by Sean OMeara
parent eccc31a4b9
commit 39f3f5b2d9
6 changed files with 36 additions and 7 deletions
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3
service/OneService.cpp
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@ -2075,6 +2075,7 @@ public:
bool enabled = OSUtils::jsonInt(link["enabled"],true);
uint32_t capacity = OSUtils::jsonInt(link["capacity"],0);
uint8_t ipvPref = OSUtils::jsonInt(link["ipvPref"],0);
uint16_t mtu = OSUtils::jsonInt(link["mtu"],0);
std::string failoverToStr(OSUtils::jsonString(link["failoverTo"],""));
// Mode
std::string linkModeStr(OSUtils::jsonString(link["mode"],"spare"));
@ -2091,7 +2092,7 @@ public:
failoverToStr = "";
enabled = false;
}
_node->bondController()->addCustomLink(customPolicyStr, new Link(linkNameStr,ipvPref,capacity,enabled,linkMode,failoverToStr));
_node->bondController()->addCustomLink(customPolicyStr, new Link(linkNameStr,ipvPref,mtu,capacity,enabled,linkMode,failoverToStr));
}
std::string linkSelectMethodStr(OSUtils::jsonString(customPolicy["activeReselect"],"optimize"));
if (linkSelectMethodStr == "always") {