HP MSR Router Series User Manual

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To negotiate the use of short sequence numbers on a dialer MP bundle, configure the command on the
dialer interfaces and the ISDN D channels. To negotiate the use of short sequence numbers on a
common MP bundle, use the command on all its channels. Note that the command will cause PPP
re-negotiation.
To configure short sequence number header format negotiation for MP:
Ste
p
Command Remarks
1. Enter system view
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Trigger MP short sequence number
header negotiation, specifying that
the interface receive fragments with
short sequence numbers after the
negotiation succeeds.
ppp mp short-sequence
By default, long sequence
number header format
negotiation is performed.
Configuring the MP endpoint descriptor
When MP is configured by using a VT interface, an MP endpoint makes link binding decisions based on
the remote endpoint descriptors. It assigns the links that receive the same endpoint descriptor to the same
bundle. To avoid incorrect link binding on a VT interface, make sure the link descriptors used by different
devices are unique. You must re-configure an endpoint descriptor for a device if the default endpoint
descriptor (device name) cannot uniquely identify the MP bundle at the remote end.
When MP is configured by using an MP-group interface, the negotiating endpoints do not base their
binding decisions on the endpoint descriptor. By default, the endpoint descriptor of an interface in an
MP-group is the MP-group interface name. When you configure an endpoint descriptor for the interface,
the configured MP endpoint descriptor takes effect.
If the endpoint descriptor exceeds 20 bytes, the first 20 bytes are taken as the endpoint descriptor.
To configure the MP endpoint descriptor of an interface for LCP negotiation:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Configure the MP endpoint
descriptor.
ppp mp endpoint endpoint N/A
Configuring LFI
Real-time packets, such as Telnet and VoIP packets, might be blocked or delayed on a low-speed
interface.
To reduce delays and jitters on low-speed links, LFI fragments large packets into small fragments. The
fragments are reassembled at the destination.
Figure 2
illustrates the LFI process. When large packets and small voice packets arrive at a
WFQ-enabled interface, LFI performs the following operations:

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