3Com Router User Manual

Typical Frame Relay Configuration Example277
[Router-Serial1] ip address 202.38.163.253 255.255.255.0
bConfigure the link layer protocol of the interface to Frame Relay
[Router-Serial1]link-protocol fr
[Router-Serial1]fr interface-type dte
cConfigure static address mapping
[Router-Serial1]fr map ip 202.38.163.251 dlci 80
Interconnect LANs via 
Private LineI. Networking Requirement
Two Routers are directly connected via a serial port. Router A works in the Frame 
Relay DCE mode, and Router B works in the...

278CHAPTER 17: CONFIGURING FRAME RELAY
II. Networking Diagram
Figure 94   MFR bundle networking
III. Configuration Procedure
1Configure RouterA
aCreate a MFR interface.
[Router]interface mfr 0
[Router-MFR0]ip address 202.38.163.251 255.255.255.0
[Router-MFR0]fr interface-type dte
[Router-MFR0]fr dlci 100
[Router-MFR0]fr map ip 202.38.163.252 dlci 100
bBundle Serial 0 and Serial 1 to mfr 0.
[Router]interface serial 0
[Router-Serial0]link-protocol fr mfr 0
[Router]interface serial 1...

Typical Frame Relay Configuration Example279
II. Networking Diagram
Figure 95   networking diagram of Frame Relay over IP
III. Configuration Procedure
1Configure Router A
[Router]interface serial 0
[Router-Serial0]ip address 202.38.163.251 255.255.255.0
[Router-Serial0]fr interface-type dte
[Router-Serial0]fr dlci 100
[Router-Serial0]fr map ip 202.38.163.252 dlci 100 compression frf9
2Configure Router B
You can configure Router B in the same way as that of Router A, so its 
configuration will not be...

280CHAPTER 17: CONFIGURING FRAME RELAY
[Router-fr-class-frts]cir allow 64000 64000
[Router-fr-class-frts]cbs 64000
[Router-fr-class-frts]cir 64000
[Router-fr-class-frts]fragment 80 data-level
Configuration Example 
of Frame Relay Traffic 
ShapingI. Configuration Requirements
The Router is connected to the Frame Relay network via the interface Serial 0. It is 
required that the average transmit rate of the router should be 96 kbps, the 
maximum transmit rate should be 128 kbps, and the minimum transmit...

Typical Frame Relay Configuration Example281
II. Networking Diagram
Figure 98   Networking diagram of Frame Relay over IP
III. Configuration Procedure
1Configure RouterA
aConfigure the Frame Relay interface Serial0
[Router]interface serial 0
[Router-Serial0]link-protocol fr
[Router-Serial0]fr interface-type dce
[Router-Serial0]fr dlci 100
bConfigure IP interface Ethernet0
[Router]interface ethernet 0
[Router-Ethernet0]ip address 10.110.50.1 255.255.255.0
cConfigure tunnel interface
[Router]interface...

282CHAPTER 17: CONFIGURING FRAME RELAY
On RouterA, two BRI interfaces, Bri0 and Bri1, are available. Bri0 is assigned with 
the ISDN number 660218, the IP address 110.0.0.1 and the DLCI number 100. 
Bri1 is assigned with the ISDN number 660208, the IP address 120.0.0.1 and the 
DLCI number 200. On RouterB, one PRI interface is available for providing services 
for two dialer interfaces. This PRI interface is assigned with the ISDN number 
660045, the IP addresses 110.0.0.2 and 120.0.0.2, and the DLCI...

Typical Frame Relay Configuration Example283
[Router-Serial2:15]dialer bundle-member 20
For configuring the BDR and Frame Relay parameters on Dialer1, refer to the 
configuration on Dialer0. The user only needs to change the IP address to 
120.0.0.2, DLCI number to 200, and configure to receive the incoming calls from 
the number 660208 and assign Dialer1 to Dialer Bundle 20.
Frame Relay Switching 
Connection through 
Frame Relay over ISDNI. Networking Requirements
RouterB (DCE) is connected to the ISDN...

284CHAPTER 17: CONFIGURING FRAME RELAY
2Configure RouterB
aConfigure the BDR and Frame Relay parameters on the PRI interface.
[Router]dialer-rule 1 ip permit
[Router]fr switching
[Router]controller e1 0
[Router-E1-0]pri-set
[Router]interface dialer 0
[Router-Dialer0]ip address 110.0.0.2 255.255.255.0
[Router-Dialer0]dialer bundle 10
[Router-Dialer0]dialer-group 1
[Router-Dialer0]dialer number 660218
[Router-Dialer0]dialer call-in 660218
[Router-Dialer0]link-protocol fr
[Router-Dialer0]fr interface-type...

Fault Diagnosis and Troubleshooting of Frame Relay285
Fault Diagnosis and 
Troubleshooting of 
Frame RelayFault 1: the physical layer in DOWN status.
Troubleshooting:
■Check whether the physical line is normal.
■Check whether the opposite equipment runs normally.
Fault 2: the physical layer is already UP, but the link layer protocol is 
DOWN.
Troubleshooting:
■Check whether both local equipment and opposite equipment have been 
configured with Frame Relay protocol.
■If two sets of equipment are directly...

286CHAPTER 17: CONFIGURING FRAME RELAY
■Check whether the Frame Relay configurations at both ends are correct. Read 
the section of troubleshooting in Link Layer Protocol.