160 CHAPTER 11: CONFIGURING LOGICAL INTERFACE
[Router-Serial0]link-protocol fr
3Specify DTE as its frame relay terminal type
[Router-Serial0]fr interface-type dte
4Create sub-interface Serial 0.1 on WAN interface Serial0 of router A in point-to
point mode, and enter its view
[Router]interface serial 0.1 point-to-point
5Set its IP address to 202.38.160.1 and address mask to 255.255.255.0.
[Router-Serial0.1]ip address 202.38.160.1 255.255.255.0
6Allocate a virtual circuit with DLCI 50 to it.
[Router-Serial0.1]fr dlci 50
7Create sub-interface Serial 0.2 on WAN interface Serial0 of router A in point-to
point mode, and enter its view
[Router]interface serial 0.2 point-to-point
8Set its IP address to 202.38,161.1 and address mask to 255.255.255.0.
[Router-Serial0.2]ip address 202.38.161.1 255.255.255.0
9Allocate a virtual circuit with DLCI 60 to it.
[Router-Serial0.2]fr dlci 60
10 Configure the static route from router A to LAN2 and LAN3.
[Router]ip route-static 129.10.0.0 255.255.0.0 202.38.160.2
[Router]ip route-static 129.11.0.0 255.255.0.0 202.38.161.2
Configurations of router B and router C are omitted here. For fault diagnosis and
troubleshooting of sub-interface, please see chapters in Operation Manual - Link
Layer Protocol and Operation Manual - Network Protocol in this manual.
Standby Center Logic Channel The standby center not only provides mutual backup between respective
interfaces, but also chooses a certain virtual circuit belonging to X.25 or frame
relay as the main interface or standby interface of the standby center. Please see
relevant chapters in Operation Manual – Reliability for details about the standby
center.
To facilitate configuration, the user can specify relevant logic channel for the
above-mentioned virtual circuit and configure working parameters of the standby
center in the logic channel.
Configure Standby
Center Logic Channel For detailed description, monitoring and maintenance, typical configuration
example, fault diagnosis and troubleshooting oriented to the configurations of the
standby center logic channel, please see Operation Manual – Reliability.
Virtual-Template and Virtual Interface Virtual-template as the name implies, is a template used to configure a virtual
interface, mainly used in VPN and MP.
After setting up the connection of VPN session, it is necessary to create a virtual
interface to exchange data with the opposite end. At this times configuration and