Оценок - 3, средний балл: 4
(
)
)
|
Фрагмент инструкции
These terms do not refer to using Cisco ONS 15xxx products in a unidirectional path switched ring configuration. Rather, these terms, as well as “Path Protected Mesh Network” and “PPMN,” refer generally to Cisco’s path protection feature, which may be used in any topological network configuration. Cisco does not recommend using its path protection feature in any particular topological network configuration. The Cisco ONS 15454 SDH integrates Ethernet into a SDH time-division multiplexing (TDM) platform. This chapter describes the Cisco ONS 15454 SDH E-Series Ethernet cards, G-Series Ethernet cards, and ML-Series Ethernet cards. It includes descriptions, hardware specifications, and block diagrams for each card. For G-Series and E-Series Ethernet application information, see Chapter 14, “Ethernet Operation.” For installation and card turn-up procedures, refer to the Cisco ONS 15454 SDH Procedure Guide. For ML-Series configuration information, see the Ethernet Card Software Feature and Configuration Guide. Chapter topics include: • 5.1 Ethernet Card Overview, page 5-1 • 5.2 E100T-G Card, page 5-2 • 5.3 E1000-2-G Card, page 5-4 • 5.4 G1000-4 Card, page 5-7 • 5.5 G1K-4 Card, page 5-8 • 5.6 ML100T-12 Card, page 5-10 • 5.7 ML1000-2 Card, page 5-12 • 5.8 GBICs and SFPs, page 5-14 5.1 Ethernet Card Overview The card overview section summarizes card functions, power consumption, and temperature ranges. Note Each card is marked with a symbol that corresponds to a slot (or slots) on the ONS 15454 SDH shelf assembly. The cards are then installed into slots displaying the same symbols. See the Cisco ONS 15454 SDH Procedures Guide for a list of slots and symbols. Cisco ONS 15454 SDH Reference Manual, R5.0 April 2008 5-1 Chapter 5 Ethernet Cards 5.1.1 Cards Summary 5.1.1 Cards Summary Table 5-1 lists the Cisco ONS 15454 SDH Ethernet cards. Table 5-1 Ethernet Cards for the ONS 15454 SDH Card Port Description For Additional Information... E100T-G The E100T-G card provides 12 switched, autosensing, 10/100BaseT Ethernet ports. See the “5.2 E100T-G Card” section on page 5-2. E1000-2-G The E1000-2-G card provides two IEEE-compliant, 1000-Mbps ports. Gigabit Interface Converters (GBICs) are separate. See the “5.3 E1000-2-G Card” section on page 5-4. G1000-4 The G1000-4 card provides four IEEE-compliant, 1000-Mbps ports. GBICs are separate. See the “5.4 G1000-4 Card” section on page 5-7. G1K-4 The G1K-4 card provides four IEEE-compliant, 1000-Mbps ports. GBICs are separate. The G1K-4 card is functionally identical to the G1000-4 card. See the “5.5 G1K-4 Card” section on page 5-8. ML100T-12 The ML100T-12 card provides 12 switched, autosensing, 10/100Base-T Ethernet ports. See the “5.6 ML100T-12 Card” section on page 5-10. ML1000-2 The ML1000-2 card provides two IEEE-compliant, 1000-Mbps ports. Small form-factor pluggable (SFP) connectors are separate. See the “5.7 ML1000-2 Card” section on page 5-12. 5.1.2 Card Compatibility Table 5-2 lists the CTC software compatibility for each Ethernet card. See Table 2-6 on page 2-4 to determine Ethernet card cross-connect compatibility. Table 5-2 Ethernet Card Software Compatibility Ethernet Cards R2.2.1 R2.2.2 R3.0.1 R3.1 R3.2 R3.3 R3.4 R4.0 R4.1 R4.51 R4.6 R4.71 R5.0 E100T-G Yes Yes Yes Yes Yes Yes Yes Yes Yes — Yes — Yes E1000-2-G Yes Yes Yes Yes Yes Yes Yes Yes Yes — Yes — Yes G1000-4 — — — — Yes Yes Yes Yes Yes — Yes — Yes G1K-4 — — — — Yes Yes Yes Yes Yes — Yes — Yes ML100T-12 — — — — — — — Yes Yes — Yes — Yes ML1000-2 — — — — — — — Yes Yes — Yes — Yes 1. DWDM-only release. 5.2 E100T-G Card The ONS 15454 SDH uses E100T-G cards for Ethernet (10 Mbps) and Fast Ethernet (100 Mbps). Each card provides 12 switched, IEEE 802.3-compliant, 10/100BaseT Ethernet ports that can independently detect the speed of an attached device (autosense) and automatically connect at the appropriate speed. 5-2 Cisco ONS 15454 SDH Reference Manual, R5.0 April 2008 Chapter 5 Ethernet Cards 5.2 E100T-G Card The ports autoconfigure to operate at either half or full duplex and determine whether to enable or disable flow control. You can also configure Ethernet ports manually. Figure 5-1 shows the faceplate and a block diagram of the card. Figure 5-1 E100T-G Faceplate and Block Diagram 10/100 PHYS A/D Mux Flash DRAM CPU Buffer memory Control memory Ethernet MACs/switch 61877 FPGA BTC B a c k p l a n e 1 2 3 4 5 6 7 8 9 10 11 12 FAIL ACT SF E100T-G The E100T-G Ethernet card provides high-throughput, low-latency packet switching of Ethernet traffic across a SDH network while providing a greater degree of reliability through SDH self-healing protection services. This Ethernet capability enables network operators to provide multiple 10/100-Mbps access drops for high-capacity customer LAN interconnects, Internet traffic, and cable modem traffic aggregation. It enables the efficient transport and co-existence of traditional TDM traffic with packet-switched data traffic. Each E100T-G card supports standards-based, wire-spee...