16-108
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
April 2006
Chapter 16 Card Reference
16.8.6 MXP_MR_2.5G and MXPP_MR_2.5G Cards
Table 16-65 shows some of the mix and match possibilities on the various client ports. The table is
intended to show the full client payload configurations for the card.
For the MXP_MR_2.5G card, protection is done using Y-cable protection. Two MXP_MR_2.5G cards
can be joined in a Y-cable protection group, which provides protection against failures both on the fiber
and in the muxponders.
For the MXPP_MR_2.5G card, protection is done using splitter protection, which provides protection
against failures due to fiber cuts or unacceptable signal degradation on the trunk side. See the
“16.9 Transponder and Muxponder Protection” section on page 16-114 for more detailed information.
Note Switching is performed only if the protect line is error free.
GFP-T performance monitoring (GFP-T PM) is available via remote monitoring (RMON), and trunk PM
is managed according to Telcordia GR-253-CORE and ITU G.783/826. Client PM is achieved through
RMON for FC and GE.
A buffer-to-buffer credit management scheme provides FC flow control. With this feature enabled, a port
indicates the number of frames that can be sent to it (its buffer credit), before the sender is required to
stop transmitting and wait for the receipt of a “ready” indication The MXP_MR_2.5G and
MXPP_MR_2.5 cards support FC credit-based flow control with a buffer-to-buffer credit extension of
up to 1600 km for 1G FC and up to 800 km for 2G FC. The feature can be enabled or disabled.
You can install MXP_MR_2.5G and MXPP_MR_2.5G cards in Slots 1 to 6 and 12 to 17. The
TCC2/TCC2P card is the only other card required to be used with these muxponder cards. Cross-connect
cards do not affect the operation of the muxponder cards.
Table 16-64 MXP_MR_2.5G and MXPP_MR_2.5G Client Interface Data Rates and Encapsulation
Client Interface Input Data Rate GFP-T G.7041 Encapsulation
GE 1.25 Gbps Yes
1G FC 1.06 Gbps Yes
2G FC 2.125 Gbps Yes
1G FICON 1.06 Gbps Yes
2G FICON 2.125 Gbps Yes
Table 16-65 Client Data Rates and Ports
Mode Port(s) Aggregate Data Rate
GE 1, 2 2.5 Gbps
1G FC 1, 2 2.125 Gbps
2G FC 1 2.125 Gbps
1G FICON 1, 2 2.125 Gbps
2G FICON 1 2.125 Gbps
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