Cisco ONS 15454 SDH Specifications Page 196

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Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 3 Card Reference
G1000-4 Card
Figure 3-47 G1000-4 faceplate and block diagram
The G1000-4 Gigabit Ethernet card provides high-throughput, low latency transport of Ethernet
encapsulated traffic (IP and other layer 2 or layer 3 protocols) across an SDH/SONET network while
providing a greater degree of reliability through SDH/SONET “self-healing” protection services.
Carrier-class Ethernet transport is achieved by hitless (< 50 ms) performance in the event of any failures
or protection switches (such as 1+1 MSP, SNCP, MS-SPRing, or optical equipment protection) and full
provisionability and manageability, as in SONET service. Full provisioning support is possible via TL1,
CTC or CTM.
You can install the G1000-4 card into any multispeed slot 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 STM-64). Each G1000-4 card performs completely independently of the other cards in the same
shelf.
You can create logical SDH/SONET ports by provisioning VC channels to the packet switch entity
within an ADM. Logical ports can be created with a bandwidth granularity of VC-4. In a single or
multicard configuration, the ONS 15454 SDH can support 1 VC-4-4c, 2 VC-4-2c, or 4 VC-4-1c
unstitched VC signal levels and 2 VC-4-2c, or 4 VC-4-1c stitched signal levels. Each Ethernet port can
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