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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter5 Ethernet Cards
5.5.1 G1K-4 Compatibility

Figure 5-4 shows the card faceplate and the block diagram of the card.

Figure5-4 G1K-4 Faceplate and Block Diagram

The G1K-4 Gigabit Ethernet card provides high-throughput, low-latency transport of Ethe rnet

encapsulated traffic (IP and other Layer 3 protocols) across a SDH network while providing a greater

degree of reliability through SDH self-healing protection servic es. Carrier-class Ethernet transport is

achieved by hitless (< 50 ms) performance in the event of any failures or protection switches (such as

1+1 APS, path protection, BLSR, or optical equipment protection) and full provisioning and

manageability, as in SDH service. Full provisioning support is possible via CTC or CTM. Each G1K-4

card performs independently of the other cards in the sam e shelf.

5.5.1 G1K-4 Compatibility

Software R4.0 and later identifies G1K-4 cards as G1K-4s upon physical installation. Software prior to

R4.0 identifies both G1000-4 and G1K-4 cards as G1000-4s upon p hysical installation.

You can install the G1K-4 card in Slots 1 to 6 and 12 to 17, for a total shelf capacity of 48 Gigabit

Ethernet ports. (The practical limit is 40 ports because at least two slots are typically populated by

optical cards such as the OC-192.)

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