Cisco Systems 15310-CL, 15310-MA CE-100T-8 SONET Circuits and Features

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5

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Chapter 17 CE-100T-8 Ethernet Operation

CE-100T-8 SONET Circuits and Features

If the CE-100T-8 card’s ToS setting is 255 (default) and the CoS setting is 7 (default), priority queueing

is not active on the card, and data gets sent to the default normal traffic queue. Also if data is not tagged

with a ToS value or a CoS value before it enters the CE-100T-8 card, it gets sent to the default normal

traffic queue.

Note Priority queuing has no effect when flow control is enabled (default) on the CE-100T-8. Under flow

control a 6 kilobyte single-priority first in first out (FIFO) buffer fills, then a PAUSE frame is sent. This

results in the packet ordering priority becoming the responsibility of the external device, which is

buffering as a result of receiving the PAUSE flow-control frames.

Note Priority queuing has no effect when the CE-100T-8 is provisioned with STS-3C circuits. The STS-3c

circuit has more data capacity than Fast Ethernet, so CE-100T-8 buffering is not needed. Priority queuing

only takes effect when buffering occurs.

The CE-100T-8 card features remote monitoring (RMON) that allows network operators to monitor the

health of the network with a network management system (NMS). The CE-100T-8 uses the ONG RMON.

The ONG RMON contains the statistics, history, alarms, and events MIB gr oups from the standard

RMON MIB, as well as Simple Network Management Protocol (SNMP). A user c an access RMON

threshold provisioning through TL1 or CTC. For RMON threshold provisioning with CTC, refer to the

Cisco ONS 15454 Procedure Guide and the Cisco ONS 15454 Troubleshooting Guide. For TL1

information, refer to the Cisco ONS SONET TL1 Command Guide.

The CE-100T-8 has a full range of Ethernet and POS statistics under Performance > Ether Ports or

Performance > POS Ports. These are detailed in the “Performance Monitoring” chapter of the

Cisco ONS 15454 Reference Manual.

CE-100T-8 SONET Circuits and Features

The CE-100T-8 has eight POS ports, numbered one through eight, which are exposed to management

with CTC or TL1. Each POS port is statically mapped to a matching Ethernet port. By clicking the

card-level Provisioning tab > POS Ports tab, the user can configure the Administrative State, Framing

Type, and Encapsulation Type. By clicking the card-level Performance tab > POS Ports tab, the user can

view the statistics, utilization, and history for the POS ports.

Each POS port terminates an independent contiguous SONET concatenation (CCAT) or virtual SONET

concatenation (VCAT). The SONET circuit is created for these ports through CTC or TL1 in the same

manner as a SONET circuit for a non-Ethernet line card. Table 17-3 shows the circuit sizes available for

the CE-100T-8 on the ONS 15310-CL and ONS 15310-MA.