Frame relay is a wide area network technology that uses a packet switching method to establish an end-to-end virtual link for users. The frame relay network passing through is transparent to users, and it is used in the same way as leased physical The dedicated line is the same, and it is cheaper than the leased line, and is often used for the connection between the branch office and the head office
The frame relay protocol is a statistical time-division multiplexing protocol. It can provide multiple virtual circuits on a single physical transmission line, and each virtual circuit is identified by a data link connection identifier DLCI
To configure point-to-point Frame Relay:
Core code configuration:
AR1：
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys R1 ( renamed)
[R1] un in en ( lock notification message)
Info: Information center is disabled.
[R1]int s2/0/0 ( incoming interface)
[R1-Serial2/0/0]link-protocol fr ( Frame Relay Protocol)
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]
:y
[R1-Serial2/0/0]fr interface-type dte ( the interface type is dte)
[R1]int s2/0/0.1 p2p ( point-to-point type subinterface)
[R1-Serial2/0/0.1]fr dlci 40 ( DLCI of the specified subinterface)
[R1-fr-dlci-Serial2/0/0.1-40]q
[R1-Serial2/0/0.1]ip ad 172.16.1.1 24 ( Configure the ip address of the sub-interface)
[R1-Serial2/0/0.1]q
[R1]int s2/0/0.2 p2p ( point-to-point type subinterface)
[R1-Serial2/0/0.2]fr dlci 20 ( DLCI of the specified subinterface)
[R1-fr-dlci-Serial2/0/0.2-20]q
[R1-Serial2/0/0.2]ip address 172.16.0.1 24 ( configure IP address)
[R1-Serial2/0/0.2]q
[R1]you are Vlanif 1
[R1-Vlanif1]ip ad 192.168.0.1 24 ( configure internal network interface)
[R1-Vlanif1]q
[R1]ip route-static 192.168.1.0 24 172.16.1.2 ( add static route)
[R1]ip route-static 192.168.2.0 24 172.16.0.2
[R1]
AR2：
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys R2
[R2]un in en
Info: Information center is disabled.
[R2]int s2/0/0
[R2-Serial2/0/0]lin
[R2-Serial2/0/0]link-protocol fr
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]
:y
[R2-Serial2/0/0]fr interface-type dte
[R2-Serial2/0/0]q
[R2]int s2/0/0.1 p2p
[R2-Serial2/0/0.1]q
[R2]int s2/0/0.1 p2p
[R2-Serial2/0/0.1]fr dlci 41
[R2-fr-dlci-Serial2/0/0.1-41]q
[R2-Serial2/0/0.1]ip address 172.16.1.2 24
[R2-Serial2/0/0.1]q
[R2]int s2/0/0.2 p2p
[R2-Serial2/0/0.2]fr dlci 30
[R2-fr-dlci-Serial2/0/0.2-30]q
[R2-Serial2/0/0.2]ip ad 172.16.2.1 24
[R2-Serial2/0/0.2]q
[R2]int Vlanif 1
[R2-Vlanif1]ip address 192.168.1.1 24
[R2-Vlanif1]q
[R2]ip route-static 192.168.0.0 24 172.16.1.1
[R2]ip route-static 192.168.2.0 24 172.16.2.2
[R2]
AR3：
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys R3
[R3]un in en
Info: Information center is disabled.
[R3]int s2/0/0
[R3-Serial2/0/0]link-protocol fr
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]
:y
[R3-Serial2/0/0]fr interface-type dte
[R3-Serial2/0/0]q
[R3]int s2/0/0.1 p2p
[R3-Serial2/0/0.1]fr dlci 31
[R3-fr-dlci-Serial2/0/0.1-31]q
[R3-Serial2/0/0.1]ip address 172.16.2.2 24
[R3-Serial2/0/0.1]q
[R3]int s2/0/0.2 p2p
[R3-Serial2/0/0.2]fr dlci 21
[R3-fr-dlci-Serial2/0/0.2-21]q
[R3-Serial2/0/0.2]ip ad
[R3-Serial2/0/0.2]ip address 172.16.0.2 24
[R3]int Vlanif 1
[R3-Vlanif1]ip address 192.168.2.1 24
[R3-Vlanif1]q
[R3]ip route-static 192.168.0.0 24 172.16.0.1
[R3]ip route-static 192.168.1.0 24 172.16.2.1
[R3]
verify:
