Cisco CX-FEIP-2TX= Installation and con?guration Specifications download pdf (Page 371)

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Cisco ONS 15454 Installation and Operations Guide, R3.2

March 2002

Chapter 9 Ethernet Operation

G1000-4 Circuit Configurations

9.5.1 G1000-4 Point-to-Point Ethernet Circuits

G1000-4 cards support point-to-point circuit configuration. Provisionable circuit sizes are STS 1, STS

3c, STS 6c, STS 9c, STS 12c, STS 24c and STS 48c. Each Ethernet port maps to a unique STS circuit

on the SONET side of the G1000-4.

Figure 9-24 A G1000-4 point-to-point circuit

The G1000-4 supports any combination of up to four circuits from the list of valid circuit sizes, however

the circuit sizes can add up to no more than 48 STSs. Due to hardware constraints, the initial release of

this card (software release 3.2) imposes additional restrictions on the combinations of circuits that can

be dropped onto a G1000-4 card. These restrictions are transparently enforced by the ONS 15454, and

you do not need to keep track of restricted circuit combinations.

The restriction occurs when a single STS-24c is dropped on a card. In this instance, the remaining

circuits on that card can be another single STS-24c or any combination of circuits of STS-12c size or

less that add up to no more than 12 STSs (i.e. a total of 36 STSs on the card).

No circuit restrictions are present, if STS-24c circuits are not being dropped on the card. The full 48

STSs bandwidth can be used (for example using either a single STS-48c or 4 STS-12c circuits).

Note Since the restrictions only apply when STS-24cs are involved but do not apply to two STS-24c circuits

on a card, you can easily minimize the impact of these restrictions. Group the STS-24c circuits together

on a card separate from circuits of other sizes. The grouped circuits can be dropped on other G1000-4

cards on the ONS 15454.

Note The G1000-4 uses STS cross-connects only. No VT level cross-connects are used.

Note All SONET side STS circuits must be contiguous.

Caution G1000-4 circuits connect with OC-N cards or other G1000-4 cards. G1000-4 cards do not connect with

E-series Ethernet cards.

Caution The G1000-4 card requires the XC10G card to operate. The G1000-4 card is not compatible with XC or

XCVT cards.

Procedure: Provision a G1000-4 Point-to-Point Circuit

Step 1 Log into an ONS 15454 that you will use as on of the Ethernet circuit endpoint.

Point-to-Point Circuit

ONS Node ONS Node

Gigabit Ethernet Gigabit Ethernet

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Cisco CX-FEIP-2TX= Installation and con?guration Specifications Page 371