Update draft-guo-fc-profile.md

draft-guo-fc-profile.md

@@ -83,6 +83,7 @@ informative:
     RFC4271:
     RFC6480:
     RFC7908:
+    RFC9582: # A Profile for Route Origin Authorizations (ROAs)
 
 --- abstract
 
@@ -149,26 +150,12 @@ ct-FC CONTENT-TYPE ::=
 ForwardingCommitmentAttestation ::= SEQUENCE {
     version [0]         INTEGER DEFAULT 0,
     asid                ASID,
-    previousASes        SEQUENCE (SIZE(1..N)) OF ASID,
-    nexthopASes         SEQUENCE (SIZE(1..N)) OF ASID,
-    prefixes            SEQUENCE (SIZE(0..N)) OF Prefix,
-    fc ForwardingCommitment }
+    previousASes        SEQUENCE (SIZE(1..MAX)) OF ASID,
+    nexthopASes         SEQUENCE (SIZE(1..MAX)) OF ASID,
+    roaASes             SEQUENCE (SIZE(0..MAX)) OF ASID }
 
 ASID ::= INTEGER (0..4294967295)
 
-Prefix ::= SEQUENCE {
-    afi                 AFI,
-    address             IPAddress,
-    prefixLength        INTEGER (SIZE(0..128)}
-
-AFI ::= OCTET STRING (SIZE(2))
-
-IPAddress ::= BIT STRING (SIZE(0..128))
-
-ForwardingCommitment ::= SEQUENCE {
-    id                  BIT STRING
-    signature           BIT STRING }
-
 END
 ~~~~~~
 {: #fig-eContentFC title="eContent of FC signed object"}
@@ -191,33 +178,12 @@ The previousASes field contains the upstream ASes' number of the issuer AS that
 
 The nexthopASes field contains the downstream ASes' number of the issuer AS that can receive advertised routes from the issuer AS.
 
-## Type Prefix
-
-Within the Prefix structure, the prefixes field encodes the set of IP address prefixes announced by the issuer AS in AS_PATH. The prefixes field can be blank which means that all traffic received from upstream ASes defined in previousASes field could be advertised to downstream ASes defined in nexthopASes field.
-
-### Element afi
-
-Within the Prefix structure, afi contains the Address Family Identifier of an IP address family. This specification only supports IPv4 and IPv6. Therefore, afi MUST be either 0001 or 0002.
+## roaASes
 
-### Element address
+The roaASes field contains a set of ASes. It associates with ROAs {{RFC9582}}. 
 
-The address field contains the IP address.
-
-### Element prefixLength
-
-The prefixLength field contains the length of the IP address prefix.
-
-## Type ForwardingCommitment
-
-Within the ForwardingCommitment structure, the fc field encodes the forwarding commitment generated by this AS and will be validated by other AS.
-
-### Element id
-
-The id field contains the hash of the current AS-path in the associated BGP-UPDATE plus the next hop AS and above prefix filed.
-
-### Element signature
+Within the Prefix structure, the prefixes field encodes the set of IP address prefixes announced by the issuer AS in AS_PATH. The prefixes field can be blank which means that all traffic received from upstream ASes defined in previousASes field could be advertised to downstream ASes defined in nexthopASes field.
 
-The signature field is a signature signed by the BGP speaker who issues this FC.
 
 # FC Validation