As-path-filter:ip as-path-filter 1 permit*(1001400 ) $ is existing, which AS_PATH attributes may be matched by the As-path-filter?

In an MPLS domain, LSRs can be divided into Ingress LSR, Transit LSR, and Egress LSR according to the way of LSR processing data. For the same FEC. A certain LSR may also be the Ingress LSR of the FEC or the transit LSR of the FEC.

As shown in the figure, an engineer uses 4 routers to conduct branch network interoperability tests. Among them, R1, R2, and R3 in branch 1 deploy OSPF to achieve network interoperability, and R2, R3, and R4 in branch 2 deploy IS-IS to achieve network interoperability.

Now the engineer wants to implement R1 to access the loopback address of R4. Which of the following operations can meet this requirement?

There are 4 port colors defined in RSTP. The port role values in the flags field of the RSTP packet for the A1 ternative port and the Backup port are the same, and they are all 0101 Alternate/Backup port10 Root port11 Designated port.

In which of the following scenarios will send free ARP packets? (Multiple Choice)