HP MSR Router Series User Manual

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As shown in Figure 71:
• Router B and Router C form a simple Frame Relay network.
• DTE devices Router A and Router D are attached to the network.
The interface type DTE or DCE is identified only for the UNI interfaces. A virtual circuit between two DTE
devices can be assigned different DLCIs on different segments.
Figure 71 Frame Relay network
Virtual circuit
Virtual circuits are logical connections established between two devices. Depending on how they are
established, virtual circuits include the following types:
• Permanent virtual circuit (PVC)—A PVC is manually configured or dynamically learned through the
LMI negotiation.
• Switched virtual circuit (SVC)—An SVC is dynamically established between two devices through
calls. The network provides data transmission services on established SVCs. The terminal users can
terminate an SVC through clearing the call.
Unlike SVCs, PVCs rarely break or disconnect. PVCs are used more than SVCs.
DLCI
A DLCI uniquely identifies a virtual circuit on a physical link and has local significance only for that link.
A DLCI can be used on different physical ports to address different virtual circuits. A virtual circuit
between two DTE devices can be addressed with different DLCIs at the two ends, as shown in Figure 71
.
Because the virtual circuits in a Frame Relay network are connection oriented, each DLCI on a physical
port is destined for a different peer device. DLCIs are the Frame Relay addresses of peer devices.
The maximum number of PVCs that can be created on a Frame Relay interface is 1024. The user
configurable DLCIs for the PVCs are in the range 16 to 1007. Other DLCIs are reserved. For example,
DLCI 0 and DLCI 1023 are reserved for the LMI protocol to transfer control messages.
Ser2/1/1Ser2/1/1Ser2/1/0
DLCI=100
DTE DTEDCE
Ser2/1/0
Ser2/1/0 Ser2/1/0
NNI NNI DCE
Router A Router B Router C Router D
DLCI=200 DLCI=300
Frame relay
network
UNI
UNINNI

HP MSR Router Series Specifications

General

Product Series	MSR
Category	Network Router
IPv6 Support	Yes
WAN Interfaces	Varies by model (e.g., Gigabit Ethernet, Serial, T1/E1)
LAN Interfaces	Varies by model (e.g., Fast Ethernet, Gigabit Ethernet)
VPN Support	Yes (IPSec, L2TP, GRE)
QoS Support	Yes (Priority queuing, traffic shaping)
Redundancy	Varies by model (e.g., VRRP, dual power supplies)
Management	CLI, Web GUI, SNMP
Firewall	Yes (Stateful firewall, NAT)

Summary

Configuring PPP and MP

PPP authentication

Details on supported PPP authentication methods: PAP, CHAP, MS-CHAP, and MS-CHAP-V2.

PPP for IPv4

PPP for IPv6

Configuring PPP

Tasks for configuring PPP, including encapsulation, authentication, negotiation, and compression.

Configuring MP

Tasks for configuring Multilink PPP (MP) using VT or MP-group interfaces.

PPP and MP configuration examples

Practical examples for configuring PPP and MP, including authentication and IP address negotiation.

Configuring PPPoE

Configuring the PPPoE server

Configuration tasks for setting up the PPPoE server.

Configuring a PPPoE client

Configuration tasks for setting up the PPPoE client.

PPPoE configuration examples

Practical examples for configuring PPPoE server and client scenarios.

Configuring L2TP

L2TP configuration task list

Configuring basic L2TP capabilities

Basic L2TP capability configuration, including enabling L2TP and creating L2TP groups.

Configuring an LAC

Tasks for configuring an LAC to initiate tunneling requests and specify LNS IP addresses.

Configuring an LNS

Tasks for configuring an LNS to accept tunneling requests and manage VA interfaces.

L2TP configuration examples

Practical examples for configuring L2TP tunnels (NAS, client, LAC-auto-initiated).

Troubleshooting L2TP

Configuring HDLC

Enabling HDLC encapsulation on an interface

Steps to enable HDLC encapsulation on an interface.

HDLC configuration example

Configuring HDLC link bundling

Configuring an HDLC link bundle interface

Steps to configure an HDLC link bundle interface.

Assigning an interface to an HDLC link bundle

Procedure for assigning interfaces to an HDLC link bundle.

HDLC link bundling configuration example

Configuring ISDN

ISDN configuration task list

Setting the ISDN switch type on an ISDN interface

Procedure to set the ISDN switch type on an interface.

Setting the ISDN functionality of an ISDN interface

Procedure to configure the ISDN interface as user-side or network-side.

Configuring Q.931 negotiation parameters

Configuring Q.931 call control parameters

Configuring the Q.921 operating parameters

Configuring the sliding window size on an ISDN BRI interface

ISDN configuration examples

Configuring ATM

ATM configuration task list

Configuring an ATM interface

Procedure to configure ATM interfaces.

Configuring a PVC

Procedure to configure a Permanent Virtual Circuit (PVC).

Configuring PPPoA

Procedure to enable PVC/PVC-group to carry PPP and configure PPPoA mapping.

Configuring PPPoEoA

Procedure to enable PVC/PVC-group to carry PPPoE and configure PPPoEoA mapping.

Configuring VP policing

ATM configuration examples