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D-39
Cisco Transport Manager Release 7.2 User Guide
78-17630-01
Appendix D Slot Property Information—FC_MR-4, FMEC, Multirate, Optical, and Transponder Cards
Multirate Cards
The maximum bandwidth of the MRC-12 card is determined by the cross-connect card, as shown in the
following table.
The twelve ports of the MRC-12 card are divided into four groups, with each group having a master port
as shown in the following table.
Following are the general port rate configuration rules:
• The maximum bandwidth for each port is OC-48.
• Port 1 can occupy all possible backplane bandwidth but cannot exceed OC-48.
• Each port group can have a maximum of 25% backplane bandwidth, except for group 1.
• Only a master port can occupy all possible bandwidth assigned to the group.
Based on the cross-connect card and slot limitations shown in Table D-47, the following rules apply for
various synchronous transport signal (STS) available bandwidths:
• STS-12
–
Port 1 is the only port that is usable as an OC-12/STM-4. If port 1 is used as an OC-12/STM-4,
all other ports are disabled.
–
Ports 1, 4, 7, and 10 are the only ports usable as OC-3/STM-1. If any of these ports is used as
an OC-3/STM-1, Ports 2, 3, 5, 6, 8, 9, 11, and 12 are disabled.
• STS-48
–
Port 1 is the only port usable as an OC-48/STM-16. If port 1 is used as an OC-48/STM-16, all
other ports are disabled.
–
Ports 1, 4, 7, and 10 are the only ports usable as OC-12/STM-4.
–
If port 4 is used as an OC-12/STM-4, Ports 2 and 3 are disabled.
Table D-47 Maximum Bandwidth by Shelf Slot for the MRC-12 in Different Cross-Connect
Configurations
XC Card Type
Maximum Bandwidth in the Drop
Slot
1
(Slots 1 to 4 and Slots 14 to 17)
1. Drop slots are low-speed slots
Maximum Bandwidth in the
Trunk Slot
2
(Slots 5, 6, 12, or 13)
2. Trunk slots are high-speed slots
XCVT OC-12 OC-48
XC10G/XC-VXC-10G OC-48 OC-192
XC-VXL-2.5G STM-16 STM-16
XC-VXC-10G/XC-VXL-10G STM-16 STM-64
Table D-48 Port Grouping
Group Ports Included Master Port
11 1
2 2, 3, 4 4
3 5, 6, 7, 8 7
4 9, 10, 11, 12 10