HPE FlexNetwork MSR Series Comware 5 Layer 2 - Wan Access Configuration Guide

97
Step Command Remarks
Configure a PVC
for frame relay
switching in system
view.
b. fr switch name interface
interface-type
interface-number dlci dlci1
interface interface-type
interface-number dlci dlci2
A PVC created in this
method is bidirectional.
c. fr switch name
Optional.
Enter frame relay switching
PVC view.
d. undo shutdown
Optional.
Enable the current switching
PVC.
Configuring frame relay over IP
To interconnect two frame relay networks across an IP network, Frame Relay over IP was developed.
The idea is to create a GRE tunnel between frame relay networks to tunnel frame relay packets
across the IP network, as shown in Figure 26.
Figure 26
Typical implementation of frame relay over IP
GRE tunneled frame relay packets include the following types:
• FR packets that carry IP data
• InARP packets
• IND packets
• LMI packets used for negotiating virtual circuit status in the GRE tunnel
You can configure static routes in interface view or configure PVCs in system view for frame relay
switching.
Configuration restrictions and guidelines
• The interfaces used for frame relay switching must be NNI or DCE.
• Before configuring frame relay over IP network, it is necessary to create and configure a tunnel
interface. After the GRE tunnel interface is set up, you can specify it for transmitting frame relay
packets over IP network.
• You must configure a static route for frame relay switching in frame relay interface view or
multilink frame relay (MFR) interface view at both ends of the GRE tunnel, or configure a PVC
for frame relay switching in system view. After that, the system adds two route entries to the
frame relay routing table. In one route entry, the incoming interface is the tunnel interface and
the outgoing interface is the frame relay interface. In the other route entry, the incoming
interface is the frame relay interface and the outgoing interface is the tunnel interface. On the
tunnel interface, a virtual circuit identified by out-dlci is also generated. The status of this virtual
circuit determines the status of the two routes.
Frame Relay
network
IP network
Frame Relay
network
GRE tunnel

HPE FlexNetwork MSR Series Specifications

General

Brand	HPE
Model	FlexNetwork MSR Series
Category	Network Router
Language	English