What does the expression diameter.req.avp(264).value.eq('host1.example.net') specify?

What does the expression diameter.req.avp(264).value.eq('host1.example.net') specify?

• A. It matches the destination host
• B. It matches the HTTP header value
• C. The Diameter AVP value to match
• D. The user identity

Answer: (C)

In Diameter policy expressions, you target a specific AVP by its code and then apply a comparison to its value. This expression looks at the Diameter request AVP with code 264 and checks its value against the string 'host1.example.net'. So the rule defines a match on the value of that AVP, not on the broader concept of the destination host itself. Note that AVP 264 is the Destination-Host, the host to which the request is addressed, but the essential point here is that you’re matching the AVP’s value.

In Diameter policy expressions, you target a specific AVP by its code and then apply a comparison to its value. This expression looks at the Diameter request AVP with code 264 and checks its value against the string 'host1.example.net'. So the rule defines a match on the value of that AVP, not on the broader concept of the destination host itself. Note that AVP 264 is the Destination-Host, the host to which the request is addressed, but the essential point here is that you’re matching the AVP’s value.