Example for Connecting Devices with POS Interfaces Through an FR Network
This example shows how to configure two devices in different LANs to communicate through VCs.
Networking Requirements
On the network shown in Figure 3-4, Routers are connected to each other through POS sub-interfaces. The type of the interface on Device A is DCE, and the type of the interface on Device B is DTE.
Device Name |
Interface |
IP Address |
|---|---|---|
| DeviceA | POS0/1/0.1 |
10.1.1.1/24 |
| DeviceB | POS0/1/0.1 |
10.1.1.2/24 |
Configuration Roadmap
The configuration roadmap is as follows:
Set the link layer protocol to FR.
Configure interface type.
Configure a DLCI for each VC.
Data Preparation
To complete the configuration, you need the following data:
IP addresses of interfaces
DLCI on each interface
Procedure
- Configure RouterDevice A.
# Set the link layer protocol to FR and interface type to DCE.
<HUAWEI> system-view [~HUAWEI] sysname DeviceA [*HUAWEI] commit [~DeviceA] interface Pos0/1/0 [~DeviceA-Pos0/1/0] link-protocol fr [*DeviceA-Pos0/1/0] fr interface-type dce [*DeviceA-Pos0/1/0] quit
# Configure an IP address for the sub-interface and the local DLCI.
[~DeviceA] interface Pos0/1/0.1 p2p [~DeviceA-Pos0/1/0.1] ip address 10.1.1.1 255.255.255.0 [*DeviceA-Pos0/1/0.1] fr dlci 100 [*DeviceA-fr-dlci-Pos0/1/0.1-100] quit [*DeviceA-Pos0/1/0.1] quit
# Commit the configuration.
[*DeviceA0/1/0] commit
- Configure RouterDevice B.
# Set the link layer protocol to FR and interface type to DTE.
<HUAWEI> system-view [~HUAWEI] sysname DeviceB [*HUAWEI] commit [~DeviceB] interface Pos0/1/0 [~DeviceB-Pos0/1/0] link-protocol fr [*DeviceB-Pos0/1/0] fr interface-type dte [*DeviceB-Pos0/1/0] quit
# Configure an IP address for the sub-interface and the local DLCI.
[~DeviceB] interface Pos0/1/0.1 p2p [~DeviceB-Pos0/1/0.1] ip address 10.1.1.2 255.255.255.0 [*DeviceB-Pos0/1/0.1] fr dlci 100 [*DeviceB-fr-dlci-Pos0/1/0.1-100] quit [*DeviceB-Pos0/1/0.1] quit
# Commit the configuration.
[*DeviceB0/1/0] commit
- Check the configurations.
Run the display fr interface command on Device B to check the FR protocol status and interface information. The command output shows that the physical status and protocol status of the interface are both Up.
<DeviceB> display fr interface pos0/1/0.1 Pos0/1/0.1, DTE, physical up, protocol up
Run the display fr pvc-info command on Device B to check VC configurations and statistics.
<DeviceB> display fr pvc-info interface pos0/1/0.1 PVC statistics for interface Pos0/1/0.1 (DTE, PP) DLCI = 111, USAGE = LOCAL, Pos0/1/0.1 create time = 2013/11/05 11:19:17, status = ACTIVE in BECN = 0, in FECN = 0 in packets = 0, in bytes = 0 out packets = 0, out bytes = 0
Configuration Files
Device A configuration file
# sysname DeviceA # interface Pos0/1/0 link-protocol fr undo shutdown fr interface-type dce # interface Pos0/1/0.1 p2p ip address 10.1.1.1 255.255.255.0 fr dlci 100 # return
Device B configuration file
# sysname DeviceB # interface Pos0/1/0 link-protocol fr undo shutdown # interface Pos0/1/0.1 p2p ip address 10.1.1.2 255.255.255.0 fr dlci 100 # return
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