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Cisco ONS 15310-CL, ONS 15310-MA, and ONS 15310-MA SDH Ethernet Card Software Feature and Configuration Guide, R9.1 and R9.2
78-19415-01
Chapter 17 CE-Series Ethernet Cards
CE-MR-6 Ethernet Card
CE-MR-6 Pool Allocation
Note
CE-MR Pool allocation can be set for ONS 15310-MA only and can be provisioned only when the card
is in automatic provisioning mode.
CE-MR-6 has the following characteristics:
One pool can support only one circuit (from any front port), and must be a STS-48c circuit only. Two
pools of 24 STSs each can be independently allocated.
•
Ports 1-4 assigned to pool 1; ports 5-6 to pool 2.
•
Each pool can support only one circuit type at a time. The circuit types are:
–
1 STS-24c
–
Up to 2 STS-12cs
–
Up to 2 STS-9cs
–
Up to 4 STS-6cs
–
Up to 4 CCATs/ VCATs made up of STS-1s
–
Up to 4 CCATs/VCATs made up of STS-3cs
–
Number of members available for VCAT is subject to the total limit of 24 STSs in pool 1 and
23 STSs (or 21 STSs in case of STS-3C/VC4) in pool 2 (per VCG limit 21 STSs)
•
In addition, Pool1 can also support low order circuits (but not pool2)
•
VT1.5 based VCATs are subject to a total limit of 144 VT1.5s
(For Release 9.0, per VCG limit is 64. For Release 9.1 and later, per VCG limit is 63 .)
•
The 1 pool versus 2 pool operation is decided dynamically by the first circuit provisioned.
•
If two pool exists, then the mode of each pool is decided dynamically by the circuit types
provisioned.
CE-MR-6 VCAT Characteristics
The CE-MR-6 card has hardware-based support for the ITU-T G.7042 standard LCAS. This allows the
user to dynamically resize a high order or low order VCAT circuit through CTC or TL1 without affecting
other members of the virtual concatenation group (VCG) (errorless).
The ONS 15310 ML100X-8 card has a software-based LCAS (SW-LCAS) scheme. So ftware LCAS is
supported on CE-MR-6 cards for interoperation with these cards.
The SW-LCAS is not supported on CE-MR-6 cards for interoperation with the CE-100T-8 and
ML-MR-10 cards.
Note
The CE-MR-6 card does not support interoperation between the LCAS and non-LCAS circuits.
The CE-MR-6 card allows independent routing and protection preferences for each member of a VCAT
circuit. Alarms are supported on a per-member as well as per-VCG basis.
Note
A differential delay of 135 ms is supported for high order circuits and low order circuits.