Huawei Quidway NetEngine 20 series User Manual

1 Product Overview
Quidway NetEngine20/20E
Configuration Guide - Basic Configurations
1-12 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 05 (2010-01-30)
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LDP FRR
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TE FRR
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VPN FRR
GR
The Graceful Restart (GR) is a key technology for providing HA. Network administrators or
faults may trigger GR. GR upon network faults does not delete the routing information in the
routing or forwarding table or reset the LPU so that services are not interrupted.
The NE20/20E supports system-based GR and protocol-based GE. The protocol-based GR are
as follows:
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BGP GR
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OSPF GR
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ISIS GR
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MPLS LDP GR
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L3 VPN GR
1.3.5 Interfaces
The NE20/20E supports rich interface types:
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Physical interface that falls into the LAN interface and the WAN interface
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Logical interfaces that is not physical but configured to carry out data exchange
The NE20/20E supports the following physical interfaces:
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Ethernet interface
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POS interface
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CPOS interface
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ATM interface
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E1/CE1/CT1/CE3
The NE20/20E supports the following logical interfaces: sub-interface, virtual Ethernet
interface, Loopback interface, Null interface and Tunnel interface.
1.3.6 Link Layer Protocols
The NE20/20E supports abundant protocols that are related to the link layer, including PPP,
HDLC, ATM, IP over ATM, 1483B, RPR, RRPP and FR.
The NE20/20E can:
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Support VLAN and realizes the VLAN function under the IEEE 802.1Q specification.
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Support IP packet forwarding between different VLANs.
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Intercommunicate with the devices of other vendors in the industry.
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Carry out data forwarding between several VLANs on a single physical Ethernet
interface, by creating several sub-interfaces (each of which acts as an independent
Ethernet interface) for each Ethernet interface, which saves the interface resource
effectively.

Huawei Quidway NetEngine 20 series Specifications

General

Brand	Huawei
Model	Quidway NetEngine 20 series
Category	Network Router
Language	English