openconfig-packet-match.yang - leaf ethertype cannot be expressed in hexadecimal notation

[sgrazian]

leaf ethertype defined in openconfig-packet-match.yang is defined as:

leaf ethertype {
  type oc-pkt-match-types:ethertype-type;
  description
    "Ethertype field to match in Ethernet packets";
}

Where type oc-pkt-match-types:ethertype-type is defined as (openconfig-packet-match-types.yang):

typedef ethertype-type { type union { type uint16 { //Note range can only be expressed in decimal //but value is expected in hex notation. range 1..65535; } type identityref { base ETHERTYPE; } } description "The Ethertype value may be expressed as a 16-bit number in hexadecimal notation, or using a type defined by the ETHERTYPE identity"; }

But according to Yang RFC (sections 9.2 and 9.2.1) an hexadecimal notation can be used only to specify the default value of an integer type, while value must be a decimal number.

[aashaikh]

Thanks for the comment -- it does look like both YANG 1.0 / 1.1 allow hex lexical representation for only the default value. We'll take a look and work on an update.

[sgrazian]

Hi,

another thing to take into account here is that a value < 1536 does not map to any valid frame type. A string with a pattern representing hex values from 600 to FFFF may be used along with the ETHERTYPE identityref.

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