多选题Which of the following are correct regarding ISDN?（）ALegacy DDR can use port information to define interesting traffic.BLegacy DDR can configure multiple dialer configurations on the same interface.CLegacy DDR can use ACLs to define interesting traffic.DHDLC or PPP can be used to encapsulate ISDN D channel information.EThe BRI interfaces on ISDN routers with dialer profiles configured cannot belong to multiple dialer pools.FDialer profiles cannot use extended ACLs to define interesting traffic.
多选题
Which of the following are correct regarding ISDN?（）
A
Legacy DDR can use port information to define interesting traffic.
B
Legacy DDR can configure multiple dialer configurations on the same interface.
C
Legacy DDR can use ACLs to define interesting traffic.
D
HDLC or PPP can be used to encapsulate ISDN D channel information.
E
The BRI interfaces on ISDN routers with dialer profiles configured cannot belong to multiple dialer pools.
F
Dialer profiles cannot use extended ACLs to define interesting traffic.
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