Resumo do conteúdo contido na página número 1
CHAPTER16
CE-100T-8 Ethernet Operation
This chapter covers the operation of the CE-100T-8 (Carrier Ethernet) card supported on the ONS 15310
(15310-CE-100T-8). A CE-100T-8 card is also supported on the ONS 15454 (15454-CE-100T-8).
Provisioning is done through Cisco Transport Controller (CTC) or Transaction Language One (TL1).
Cisco IOS is not supported on the CE-100T-8 card.
For Ethernet card specifications, refer to the Cisco ONS 15310-CL Reference Manual. For step-by-step
Ethernet card
Resumo do conteúdo contido na página número 2
Chapter 16 CE-100T-8 Ethernet Operation CE-100T-8 Ethernet Features The CE-100T-8 card supports ITU-T G.707 and Telcordia GR-253 based standards for SONET. It offers a carrier-class level of features and reliability. This includes errorless (0-msec impact on traffic) reprovisioning. When circuit or port provisioning takes place, this operation does not affect the performance of other ports and circuit configurations that are already established on the card. Software upgrades are err
Resumo do conteúdo contido na página número 3
Chapter 16 CE-100T-8 Ethernet Operation CE-100T-8 Ethernet Features The CE-100T-8 card has symmetric flow control and proposes symmetric flow control when autonegotiating flow control with attached Ethernet devices. Symmetric flow control allows the CE-100T-8 cards to respond to pause frames sent from external devices and to send pause frames to external devices. The pause frame instructs the source to stop sending packets for a specific period of time. The sending station waits th
Resumo do conteúdo contido na página número 4
Chapter 16 CE-100T-8 Ethernet Operation CE-100T-8 Ethernet Features Note Some network devices can be configured to ignore a loss of carrier condition. If a device configured to ignore a loss of carrier condition attaches to a CE-100T-8 card at one end, alternative techniques (such as use of Layer 2 or Layer 3 keep-alive messages) are required to route traffic around failures. The response time of such alternate techniques is typically much longer than techniques that use link state a
Resumo do conteúdo contido na página número 5
Chapter 16 CE-100T-8 Ethernet Operation CE-100T-8 Ethernet Features Table 16-2 CoS Priority Queue Mappings CoS Setting in CTC CoS Values Sent to Priority Queue 7 (default) none 67 56, 7 4 5, 6, 7 3 4, 5, 6, 7 2 3, 4, 5, 6, 7 1 2, 3, 4, 5, 6, 7 0 1, 2, 3, 4, 5, 6, 7 Ethernet frames without VLAN tagging use ToS-based priority queueing if both ToS and CoS priority queueing is active on the card. The CE-100T-8 card’s ToS setting must be lower than 255 (default) and the CoS setting lower t
Resumo do conteúdo contido na página número 6
Chapter 16 CE-100T-8 Ethernet Operation CE-100T-8 SONET Circuits and Features Statistics and Counters 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 15310 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
Resumo do conteúdo contido na página número 7
Chapter 16 CE-100T-8 Ethernet Operation CE-100T-8 SONET Circuits and Features Table 16-5 CCAT High Order Circuit Size Combinations Number of STS-3c Circuits Maximum Number of STS-1 Circuits None 6 13 2None Table 16-6 VCAT High Order Circuit Size Combinations Number of STS-1-3v Circuits Maximum Number of STS-1-2v Circuits None 2 11 2None The CE-100T-8 supports up to eight low order VCAT circuits. The available circuit sizes are VT1.5-nv, where n ranges from 1 to 64. The total number o
Resumo do conteúdo contido na página número 8
Chapter 16 CE-100T-8 Ethernet Operation CE-100T-8 SONET Circuits and Features CE-100T-8 STS/VT Allocation Tab The CE-100T-8 has two pools, each with a maximum capacity of three STSs. At the CTC card-level view under the Maintenance tab, the STS/VT Allocation tab displays how the provisioned circuits populate the two pools. This information can be useful in freeing up the bandwidth required for provisioning a circuit, if there is not enough existing capacity on any one pool for provis
Resumo do conteúdo contido na página número 9
Chapter 16 CE-100T-8 Ethernet Operation CE-100T-8 SONET Circuits and Features CE-100T-8 VCAT Characteristics The ML-100T-8 card and the CE-100T-8 card (both the ONS 15310-CL version and the ONS 15454 SONET/SDH version) have hardware-based support for the ITU-T G.7042 standard link capacity adjustment scheme (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 VCG (errorless). ML-100T-8 LCAS
Resumo do conteúdo contido na página número 10
Chapter 16 CE-100T-8 Ethernet Operation CE-100T-8 SONET Circuits and Features The CE-100T-8 card supports GFP-F null mode. GFP-F CMFs are counted and discarded. The CE-100T-8 card is interoperable with the ML-100T-8 card and several other ONS Ethernet cards. For specific details on ONS Ethernet card interoperability, refer to the “POS on ONS Ethernet Cards” chapter of the Ethernet Card Guide Software Feature and Configuration Guide—for the ONS 15454, ONS 15454 SDH and ONS 15327. CE-1
