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Chapter 5
Ethernet Cards
switches (such as 1+1 APS, path protection, BLSR, or optical equipment protection) and by full
provisioning and manageability, as in SONET service. Full provisioning support is possible through
CTC or CTM. Each G1K-4 card performs independently of the other cards in the same shelf.
5.6.1 STS-24c Restriction
Due to hardware constraints, the card imposes an additional restriction on the combinations of circuits
that can be dropped onto a G-Series card. These restrictions are transparently enforced by the
ONS 15454, and you do not need to keep track of restricted circuit combinations.
When a single STS-24c terminates on a card, 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 (that
is a total of 36 STSs on the card).
If STS-24c circuits are not being dropped on the card, the full 48 STSs bandwidth can be used with no
restrictions (for example, using either a single STS-48c or 4 STS-12c circuits).
The STS-24c restriction only applies when a single STS-24c circuit is dropped; therefore, you can easily
Note
minimize the impact of this restriction. Group the STS-24c circuits together on a card separate from
circuits of other sizes. The grouped circuits can be dropped on other G-Series cards on the ONS 15454.
5.6.2 G1K-4 Compatibility
The G1K-4 card operates with the XCVT, XC10G or XC-VXC-10G cards. With the XC10G or
XC-VXC-10G cards, 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 OC-192). When used with the XCVT cards, the G1K-4 is limited to
Slots 5, 6, 12, and 13.
5.6.3 G1K-4 Card-Level Indicators
The G1K-4 card faceplate has two card-level LED indicators, described in
Table 5-11
Card-Level LEDs
FAIL LED (Red)
ACT LED (Green)
78-18106-01
G1K-4 Card-Level Indicators
Description
The red FAIL LED indicates that the card processor is not ready or that a
catastrophic software failure occurred on the G1K-4 card. As part of the boot
sequence, the FAIL LED is turned on, and it goes off when the software is
deemed operational.
The red FAIL LED blinks when the card is loading software.
The green ACT LED provides the operational status of the G1K-4. If the
ACT LED is green, it indicates that the G1K-4 card is active and the software
is operational.
5.6.1 STS-24c Restriction
Table
5-11.
Cisco ONS 15454 Reference Manual, R8.5
5-15
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