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????????????????????豸???????????????????????????????????????????仯??????????????????????????楨?????????豸????????????;???????????????????????????????С??????????????????????????????????CN2????????????????Э????????豸100?????????????????????????????????????????漱????????????????????????????????????????????????CN2???????????????????????????????????????

??CN2????????У??й???????????????????????

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IGP·?????:??????????????????????ISIS?????????????????е??????·???????????????????????????IGP???·??????

BGP·?????:???????????????Internet?????????·??????????????????????·???IBGP·??;????????Щ·????е????·????????????????????????????BGP???·??????

?鰣??????:????P?豸??????????????4????????鰣?;???????в????????????????PE?豸??????????????????????鰣?????????600???鰣??;????????????????????PE?????PIM-SM??????loopback100??????1???鰣???????????????????顣???CN2??????鰣???????????

MPLS???????:???????????PE?豸?????GE??????????????????1??????250????PE?豸?????VPN???????PE??????????????E-BGP??OSPF????????????????1000??VPN?????VPN??????40??VPN·??;??VPN?????????????????VPN·??????????????????????????????MPLSVPN??????????

QoS???????:??5???????????ToS=6???????????ToS=0?????????????QoS?????????CN2????淶??????????????;??MPLSVPN????????????????:?100?????????EXP=6???????????????VPN???????EXP=0????????????????????????????MPLSVPN???????????????鰣??????????????Ч??????5????????P?豸?????ж??????????????????????????鰣??????????????ToS=6????????????????QoS?????????е????????;?????????????????????MPLSVPN???????????????鰣??????????????Ч????

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