Huawei UR-LPUF Manual

Quidway® NetEngine 40 Series Universal Switching Router Line Processing Units
Copyright ©2007 Huawei Technologies Co., Ltd. All rights reserved.
http://www.huawei.com/products/datacomm/ 1
Quidway® NetEngine 40 Series Universal
Switching Router Line Processing Units
Overview
The Quidway® NetEngine 40 universal switching router (USR) series (abbreviated as NE40) is
based on distributed hardware forwarding structure. In addition to route switching unit (SRU), it
provides multiple types of line processing units (LPU).
UR-LPUF
The LPU is composed of LPU module and physical interface card (PIC). It aims at fast
processing and forwarding of services and maintenance of link protocols and service
forwarding tables.
Functions of modules are described as follows:
I. LPU
zEncapsulate and process protocols used at the link layer (such as Ethernet II
and PPP).
zClassify and filter data packets to monitor user flow and access control list.
zManage and schedule data buffering.
zForward data according to the forwarding table.
zIdentify and send packets over control protocols to the primary CPU for
processing through non-line rate interface.
II. PIC
The PIC deals with the physical part of functions of a service interface, including
O/E conversion and processing at the physical layer. For details, refer to an
introduction of each interface board.

Quidway® NetEngine 40 Series Universal Switching Router Line Processing Units
Copyright ©2007 Huawei Technologies Co., Ltd. All rights reserved.
http://www.huawei.com/products/datacomm/ 2
Type of LPUs
The NE40 supports 2 types of LPUs, LPUE and LPUF. LPUE does not support hot swapping
because its sub-card is fixed on it. Differently, LPUF is separated from its sub-cards (the
flexible card series), so it can be configured with one or two PIM cards that is swappable.
LPUE supported by the NE40 include:
z10/100M adaptive Ethernet electrical interface LPU (LAN)
z10/100M adaptive Ethernet electrical interface LPU (WAN)
z100M Ethernet optical interface LPU (LAN)
z100M Ethernet optical interface LPU (WAN)
zGE optical interface LPU (LAN)
zGE optical interface LPU (WAN)
zOC-3c/STM-1 POS LPU
zOC-12c/STM-4c POS LPU
zOC-48c/STM-16c POS LPU
zOC-3/STM-1 CPOS LPU
zOC-48/STM-16 CPOS LPU
zOC-48/STM-16 RPR LPU
zOC-3/STM-1 ATM LPU
zOC-12/STM-4 ATM LPU
zCE1 electrical interface LPU
zE1 electrical interface LPU
Swappable sub-cards of LPUF supported by the NE40 include:
z10/100M adaptive Ethernet electrical interface PIM (LAN)
z10/100M adaptive Ethernet electrical interface PIM (WAN)
z100M Ethernet optical interface PIM (LAN)
z100M Ethernet optical interface PIM (WAN)
zGE optical interface PIM (LAN)
zGE optical interface PIM (WAN)
zCE1 electrical interface PIM
zE1 electrical interface PIM
zE3/T3 electrical interface PIM
zOC-3c/STM-1 POS PIM
zOC-12c/STM-4c POS PIM
zOC-3/STM-1 ATM PIM
zOC-12/STM-4 ATM PIM