Integrated Service (IntServ, RFC 1633) : (End-to-End) , . IntServ RSVP, . IntServ (Resource reservation).
RSVP
QoS - . , .
RSVP , - . , RSVP , , (Network File System NFS) (Virtual Private Networks VPN).
RSVP . RSVP ; , , . I-, RSVP .
D iffserv Working Group:
1998 IETF (diffserv Working Group). diffserv , intserv . diffserv .
diffserv (DS) (Type of Service ToS) IPv4 (Traffic Class) IPv6. (per-hop behavior ), .. .
(A Framework for Differentiated Services/Bemet Y. et al, Internet Draft), . (Differentiated Services Code Point DSCP) . (-).
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MPLS (Multiprotocol Label Switching) , . MPLS IP-, IP, .
, , , .
MPLS , , . , MPLS IP , , , .
:
IP , .
DiffServ . , , , , Best Effort.
MPLS ( ). . , , , MPLS RSVP-TE23.
MPLS , . IP, a , . (LDP, CR-LDP, RSVP-TE .).
. , . , RSVP-TE, . RSVP-TE , .
MPLS IP. IETF, , IntServ, .