Table 14-62 Mxp_Mr_2.5G And Mxp_Mr_2.5G Client Interface Data Rates And Encapsulation; Table 14-63 Client Data Rates And Ports - Cisco ONS 15454 DWDM Installation And Operation Manual

14.8.6 MXP_MR_2.5G and MXPP_MR_2.5G Cards
In addition to the GFP mapping, 1 Gbps traffic on port 1 or port 2 of the high-speed SERDES is mapped
to an STS-24c channel. If two 1 Gbps client signals are present at port 1 and port 2 of the high-speed
SERDES, the port 1 signal is mapped into the first STS-24c channel and the port 2 signal into the second
STS-24c channel. The two channels are then mapped into an OC-48 trunk channel.

Table 14-62 MXP_MR_2.5G and MXP_MR_2.5G Client Interface Data Rates and Encapsulation

Client Interface
GE
1G FC
2G FC
1G FICON
2G FICON
Table 14-63
intended to show the full client payload configurations for the card.

Table 14-63 Client Data Rates and Ports

Mode
GE
1G FC
2G FC
1G FICON
2G FICON
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
"14.9 Transponder and Muxponder Protection" section on page 14-119
Switching is performed only if the protect line is error free.
Note
Generic Framing Procedure Transparent Performance Monitoring (GFP-T PM) is available via remote
monitoring (RMON), and trunk PM is managed according to Telcordia GR-253 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.
Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7
14-114
Input Data Rate
1.25 Gbps
1.06 Gbps
2.125 Gbps
1.06 Gbps
2.125 Gbps
shows some of the mix and match possibilities on the various client ports. The table is
Port(s)
1, 2
1, 2
1
1, 2
1
Chapter 14
GFP-T G.7041 Encapsulation
Yes
Yes
Yes
Yes
Yes
Aggregate Data Rate
2.5 Gbps
2.125 Gbps
2.125 Gbps
2.125 Gbps
2.125 Gbps
for more detailed information.
Card Reference
December 2004