The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
This chapter describes the flexible PLIM that is supported on the Cisco CRS-3 router and contains the following sections:
The Cisco CRS-3 Flexible PLIM supports SPAs and has four SPA bays available. The Cisco CRS-3 Flexible PLIM has six integrated, 10 GE ports. These ports support multiple framing options, including WAN, LAN, and OTN. These ports also support Tunable DWDM optics, turning the 6-ports into 10 GE IP over DWDM (IPoDWDM) interfaces.
The PLIM mates with its associated modular services card (MSC) through the chassis midplane. Each available SPA provides different interface types and port densities. For a description of the SPAs supported on the Cisco CRS-3 Flexible PLIM, see Chapter 4, “Overview: Cisco CRS Shared Port Adapters.”
Note | The total throughput on the MSC is 107 Mpps. The Cisco CRS-3 Flexible PLIM uses 64 Mpps (60%) for the fixed 10 GE ports, and 43 Mpps (40%) for the SPA (flex) ports. Depending on the traffic, you may experience uneven packet drops between the fixed ports and the flex ports on the PLIM. |
Table 1 shows a summary description of the PLIM supported on the Cisco CRS-3 router.
PLIM |
Product Number |
Description |
Maximum Number of SPAs |
Minimum Cisco IOS XR Software |
Minimum Hardware Revision |
Cisco CRS-3 Flexible PLIM |
6-10GE-WLO-FLEX |
Cisco CRS Series 6x10GbE OTU2 Flex Interface Module |
4 single-width |
Release 4.3.0 |
1.0 |
The following sections describe the Cisco CRS-3 Flexible PLIM:
The Cisco CRS-3 Flexible PLIM has two LEDs, as shown in the fugure below.
1 |
PLIM Status LED |
2 |
Port Status LEDs |
The table below describes the Cisco CRS-3 Flexible PLIM LEDs.
LED Label |
Color |
State |
Meaning |
---|---|---|---|
PLIM Status LED |
Green |
On |
The PLIM is powered on and operational. |
|
Amber |
On |
The PLIM has a problem or is disabled by software. |
|
Off |
Off |
The PLIM is powered off. |
Port Status LED |
Green |
On |
The port is enabled by software and there is a valid link. |
|
Amber |
On |
The port is disabled by software or there is a problem with the link. |
|
Off |
Off |
The PLIM is powered off. |
The following sections describe PLIM, SPA, and interface numbering:
A PLIM can be installed in slots 0 through 15 on the Cisco CRS-3 router 16-slot line card chassis and in slots 0 through 7 on the Cisco CRS-3 router 8-slot line card chassis. The figures below show the slot numbering on the front (PLIM side) of the line card chassis.
For additional information about the slot locations of PLIMs and their associated modular services cards (MSCs), see Cisco CRS Carrier Routing System 16-Slot Line Card Chassis System Description or Cisco CRS Carrier Routing System 8-Slot Line Card Chassis System Description . Both documents are available online from the specific chassis hardware documentation links at the following URL:
http://www.cisco.com/en/US/products/ps5763/prod_installation_guides_list.html
The Cisco CRS-3 Flexible PLIM accepts four single-width SPAs. The figure below shows a Cisco CRS-3 Flexible PLIM with two 4-Port OC-48c/STM-16 POS/RPR SPAs installed in subslots 1 and 3.
The figures below illustrate the SPA subslot locations on the Cisco CRS-3 Flexible PLIM. The subslot labels are located inside the SPA subslot and are only visible when the SPA is not installed.
1 |
SPA subslot 1 |
3 |
SPA subslot 3 |
2 |
SPA subslot 2 |
4 |
SPA subslot 4 |
SPAs in the Cisco CRS-3 Flexible PLIM running Cisco IOS XR Software Release 4.3.0 use an addressing format that specifies the physical location of the PLIM, SPA, and interface. The interface address format is rack /slot /subslot /port , where:
PLATFORM-SHELFMGRV2-4-HIGH_POWERED_PLIM_NOT_POWERED_ON_IN_LOWER_BAY
The following PLIMs are high-powered PLIMs:
The rules for placement of high-powered PLIMs are: