  |
Overview
|
|
Overview
|
Gigabit Ethernet NICs for Alpha Systems |
||
| Models | ||
| New Models | PCI-X/PCI to Single-port 1000BASE-SX (MMF with duplex SC connector) Gigabit Ethernet NIC |
3X-DEGXA-SB
|
| PCI-X/PCI to Single-port 10/100/1000BASE-T (Twisted-Pair Copper with RJ45 connector) Ethernet NIC |
3X-DEGXA-TB
|
|
| End-of-Life Models | PCI-X/PCI (PCI Mode Only) to Single-port 1000BASE-SX (MMF with duplex SC connector) Gigabit Ethernet NIC - Superseded by 3X-DEGXA-SB |
3X-DEGXA-SA
|
| PCI-X/PCI (PCI Mode Only) to Single-port 10/100/1000BASE-T (Twisted-Pair Copper with RJ45 connector) Ethernet NIC - Superseded by 3X-DEGXA-TB |
3X-DEGXA-TA
|
|
| Retiring
Models (Check availability prior to ordering) |
PCI to Single-port 1000BASE-SX (MMF with duplex SC connector) Gigabit Ethernet NIC |
Compaq
DEGPA-SA |
| PCI to Single-port 1000BASE-T (Twisted-Pair Copper with RJ45 connector) Gigabit Ethernet NIC |
Compaq
DEGPA-TA |
|
|
|
||
| Introduction |
|
The 3X-DEGXA-T* NICs provides single-port 10 Mbps, 100 Mbps, or 1000 Mbps Ethernet copper connectivity using Unshielded Twisted Pair (UTP) copper cable via an RJ45 connector. CAT 5 or better, 4-pair UTP copper cable is required for 1000Mbps operation. These NICs will auto-negotiate to operate at the highest common mode (speed, and half or full-duplex) available to both ends. For this reason, these NICs can be used to "future proof" today's 10 or 100 Mbps Ethernet network applications by allowing system level transparent migration to Gigabit. The 3X-DEGXA-S* provides single-port 1000Mbps Ethernet fiber connectivity using Multi-Mode-Fiber (MMF) via a duplex -SC connector. NOTE: Refer to the "Supported Options List" for HP Alpha Systems to determine support status and platform specific configuration rules. http://h18002.www1.hp.com/alphaserver/technology/index.html |
|
|
Standard Features
| NIC ASIC Technology |
|
The 3X-DEGXA-xx Family of single-port Gigabit Ethernet (GbE) NICs is based on the 5703 ASIC developed by Broadcom. The 5703 series of Gigabit silicon takes advantage of the latest in ASIC technology to provide the highest levels of functional integration - MAC and PHY on a single chip. The DEGPA-xx Family of Gigabit Ethernet (GbE) NICs is based on the award winning TIGON II ASIC originally developed by Alteon WebSystems. |
|
|
| Full-Duplex Gigabit Ethernet | Separate read and write DMA paths are provided to support full-duplex Gigabit Ethernet connectivity. Each DMA channel is capable of sustaining near gigabit per second line rates across a 64-bit PCI bus. This ensures that the PCI-to-Gigabit Ethernet NIC will not be a bottleneck in high-performance data networking applications. |
|
|
|
| Built-in intelligence to minimize packet latency and system overhead | Interrupt Coalescing -- protects systems from being overrun by excessive receive interrupts. For example, when traffic is light, the NIC interrupts the host after receiving every packet to minimize network latency. In heavy traffic, the NIC is able to optimize host efficiency by adjusting the CPU interrupt rate - (receiving back-to-back packets and issuing a single interrupt only when buffer space is low or its timer has expired). This feature helps to maximize the sustainable network throughput, minimize the host CPU overhead, and leave more host CPU cycles available to applications. |
|
|
|
| Standard Ethernet and Jumbo Frame Support |
By default, the Gigabit Ethernet NICs support the standard 1518 byte maximum Ethernet frame size. In addition, when connected point-to-point with another cooperating NIC or switch, the PCI-to-Gigabit Ethernet NICs can transfer Jumbo Frames of up to 9,018 bytes in length. The use of Jumbo Frames can further reduce system level packet processing overhead down to one third of that required to process standard frame sizes. Any application that transfers large files or program images can benefit from the use of Jumbo Frames. However, realizing the benefits of this capability is heavily dependent on the ability of the network infrastructure to pass jumbo frames end-to-end. If users intend to take advantage of Jumbo Frames in their application, it is incumbent on them to confirm that all of the intermediate switches and/or routers support Jumbo Frames. |
|
|
|
| Dual Linked-List, Scatter/Gather DMA Engines | Optimized Data Transfers - With dual, linked-list, scatter/gather DMA engines with byte boundary addressability, the PCI-to-Gigabit Ethernet NIC can move packet header and data to and from non-contiguous host memory locations. The PCI interface within the ASIC contains two independent linked-list, scatter/gather, DMA channels. One is used exclusively for host memory reads while the other is used exclusively for host memory writes. |
|
|
|
| Protocol Assist | The PCI-to-Gigabit Ethernet NIC provides built-in hardware to calculate TCP, UDP and IP checksums, and provide endian conversion on the fly. Utilization of these features is operating system and protocol stack dependent. |
|
|
|
| Auto (link) Negotiation | The default configuration for auto negotiation of the Gigabit Ethernet link is auto. With this setting, the NIC will use IEEE 802.3z auto negotiation. If users connect the NIC to Gigabit Ethernet equipment that does not support auto negotiation, auto negotiation can be turned off by the respective host CPU driver (OpenVMS and Tru64 UNIX). |
|
|
|
| System Level Performance Considerations | The PCI-to-Gigabit Ethernet NIC is a very high performance hardware device. When configured for full-duplex operation, and installed by itself in a 64-bit Bus-Master PCI I/O bus slot, the DEGPA is capable of presenting a PCI I/O bus load approaching 200 Megabytes per second (100 MB/sec transmit and 100 MB/sec receive), per port, and the DEGXA is capable of presenting a PCI I/O bus load approaching 250 Megabytes per second (125 MB/sec transmit and 125 MB/sec receive), per port |
|
|
|
| System Level Factors That Can Impede Achievable Data Rates | In many application environments today, achievable throughput can be constrained by mass-storage subsystem I/O rates, and interference from other lower performance devices plugged into the same PCI bus. |
|
|
|
| What You Should Expect | Optimization in any particular application environment, on a particular host CPU platform, and running a particular operating system and protocol stack, may require some tuning and hardware re-configuration in order to achieve the most optimum application performance. |
|
|
|
| Gigabit Ethernet performance with TPC/IP depends on several factors |
|
Some of the influencing factors are as follows: CPU speed/utilization - the speed at which data can be delivered
to the NIC influences throughput. If CPU(s) are busy doing several tasks,
the task using Gigabit Ethernet may not get enough run time to deliver
packets. In general, faster CPUs will deliver better throughput up to
the limits of its PCI/PCI-X I/O bus implementation. Regardless, in most applications where greater LAN bandwidth is required, a single GbE NIC provides a more robust system level solution (less host CPU overhead) than using multiple lesser bandwidth Fast Ethernet 100 Mbps devices. |
|
|
Configuration and Ordering Information
| Host Platform Support and Configuration Rules |
| NOTE:
Before ordering, refer to the Supported Options List (SOL) for specific
AlphaServers or AlphaStations at: http://h18002.www1.hp.com/alphaserver/technology/index.html to determine support status (hardware configuration rules, minimum supported revisions for operating systems, console firmware, and other related layered products). |
|
|
| Driver Support and Where to Find It |
| Driver Support is provided as part of the host AlphaServer or AlphaStation Operating System Distribution - Tru64 UNIX and OpenVMS. As stated above, refer to the respective host Alpha system Supported Options List to determine support, minimum revisions, and any required patch kits |
|
|
| Ordering Information | |
| Part Number | Description |
| 3X-DEGXA-SB |
PCI/PCI-X to Single-port 1000BASE-SX (MMF) Gigabit Ethernet NIC w/duplex SC connector |
| 3X-DEGXA-TB |
PCI/PCI-X to Single-port 10/100/1000BASE-TX Twisted-Pair Copper Gigabit Ethernet NIC w/RJ45 connector |
|
|
|
|
|
Product Hardware Specifications
| Ethernet Compliance | IEEE 802.3z Gigabit Ethernet Standard |
| IEEE 802.3u Fast Ethernet | |
| IEEE 802.3i 10 BaseT Twisted Pair | |
| IEEE 802.3ab Gigabit Ethernet over Copper | |
| IEEE 802.3ad (static configuration mode only) | |
| IEEE 802.3x "Pause" Frame Flow Control (X-on/X-off), Symmetric and Asymmetric | |
| IEEE 802.1q VLAN Tagging (up to 64) | |
| IEEE 802.1p Quality of Service / Priority | |
| Communications Processor |
3X-DEGXA-*B Broadcom 5703 Rev B0 w/96KB Packet
Buffer DEGPA-*A Alteon WebSystems TIGON II w/1MB Packet Buffer |
| Bus Interface | IEEE 802.1p Quality of Service / Priority |
| 3X-DEGXA-*A - PCI 2.2 bus master, and PCI-X 1.0 PCI mode only | |
| DEGPA - PCI V2.1 bus master | |
| Universal, 3.3 and 5.0 volt bus signaling | |
| 33-66 MHz on PCI, and up to 133 MHz on PCI-X | |
| 64-bit addressing and 32-/64-bit data path | |
| PCI interrupt: 5703 interrupt INTA | |
| PCI Hot Plug capable | |
| Connectors | Single-port Fiber - "-SA/-SB" Duplex-SC
fiber connector (Supports 62.5/125 micron fiber, and 50/125 micron MMF) Single and dual-port Copper NICs "-TB/-TA" utilize RJ45 connector(s) for CAT 5 or better UTP Copper |
| NOTE: 1000-MHz operation requires four pairs. |
| Operating Distance | 1000BASE-SX Shortwave (850 nm) Laser | ||
|
Fiber
|
Bandwidth
|
Maximum Length (1)
|
|
| 62.5/125 | 160 MHz | 721.78 ft/220 m | |
| 200 MHz | 902.23 ft/275 m | ||
| 50/125 | 400 MHz | 1640.42 ft/500 m | |
| 500 MHz | 1804.46 ft/550 m | ||
| 1000BASE-T UTP Copper | |||
| Cable - 4 Pair CAT 5 or better |
328.08 ft/100 m | ||
| (1) In all cases, the maximum operating distance may be reduced by the number of splices, connectors, patch-cables, and cable quality. |
| It is highly recommended that users read the "Running 1000BASE-T Gigabit Ethernet over Copper Cabling" white paper available from the Gigabit Ethernet Alliance Web site when considering the use of installed CAT 5 cable or planning for new copper cable installation: http://www.10gea.org/GEA_copper_0999_rev-wp.pdf |
| Alpha Platform Support | Refer to the Supported Option List for specific Alpha host CPUs to confirm support status, minimum supported driver revisions, minimum console version, as well as any platform-specific configuration restrictions. |
| Single slot, PCI short form factor | |
| Dimensions |
DEGPA - 6.6 in x 3.75 in (16.76 cm x 9.53 cm) PCI Short Card |
| Environmental | DEGPA-S*/-T* Retiring | ||
| Operating | Temperature | 32° to 131°F (0° to 55°C) | |
| Humidity | 5% to 85% (non-condensing) | ||
| Non-Operating |
Temperature | -40° to 185°F (-40° to 85°C) | |
| Humidity | 5% to 95% (non-condensing) | ||
| 3X-DEGXx-xx | |||
| Operating | Temperature | 32° to 131°F (0° to 55°C) | |
| Humidity | 10% to 95% (non-condensing) | ||
| Non-Operating |
Temperature | -40° to 185°F (-40° to 85°C) | |
| Humidity | 5% to 95% (non-condensing) | ||
| Power | Fiber DEGPA-SA | Copper DEGPA-TA | |
| Maximum | 14W (2.8 A @ +5 VDC) | 15W (3.0 A @ +5.0 VDC) | |
| Typical | 10W (2.0A @ +5 VDC) | ||
| Fiber 3X-DEGXA-S* | Copper 3X-DEGXA-T* | ||
| Maximum | TBS | TBS | |
| Typical | TBS | TBS | |
| Certifications | Emissions: | FCC Class B | |
| Agency Approvals: | USA: FCC (CFR 47 part 15) and UL 60950 Canada: ICES-003 and CSA60950 Japan: VCCI Korea: MIC (RRL), EMC Registration Australia (C-Tick): ACA, AS/NZS3548/EN55022:1998, EN55024:1998 EU (CE): EN55022:1998 (CISPR 22), EN55024:1998, and IEC60950:1999 (EN60950:2000) Taiwan: BSMI |
||
| MTBF | Fiber DEGPA-SA | Copper DEGPA-TA |
| Calculated using Belcore Reliability Prediction
Procedure: 95°F/35°C (77°F/25°C ambient, w/50°F/10°C
Rise): 1,029,666 hours 113°F/45°C (77°F/25°C ambient, w/68°F/20°C Rise): 697,829 hours |
Calculated using Belcore Reliability Prediction Procedure 550,429 hours at 113°F/45°C | |
| 3X-DEGXA-S* (Bellcore Issue 6, December 1997) |
3X-DEGXA-T* (Bellcore Issue 6, December 1997) |
|
| 35°C 1.82M hours 45°C 1.41M hours 55°C 1.04M hours |
30°C 2.12M hours 40°C 1.73M hours 55°C 1.20M hours |
| Warranty | Maximum - The remaining warranty
of the HP AlphaServer in which it is installed. Minimum - 1-year Return-to-Factory with Advance Exchange NOTE: Certain restrictions and exclusions apply. Contact 1-800-OK-COMPAQ for details. |
|
| © Copyright 2001-2004 Hewlett-Packard Development
Company, L.P. The information contained herein is subject to change without notice. UNIX is a registered trademark or trademark of The Open Group in the U.S. and/or other countries. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained. |