Cisco Systems ONS 15454 manual 22-37

Page 37

Chapter 22 DLPs A500 to A599

 

 

 

 

DLP- A533 Create Ethernet RMON Alarm Thresholds

 

 

 

 

Table 22-6

Ethernet Threshold Variables (MIBs) (continued)

 

 

 

 

 

 

 

 

 

Variable

 

Definition

 

 

 

 

 

 

 

 

etherStatsCollisionFrames

An estimate of the total number of collisions on this Ethernet

 

 

 

 

 

segment. The value returned will depend on the location of the

 

 

 

 

 

RMON probe. Section 8.2.1.3 (10Base5) and Section 10.3.1.3

 

 

 

 

 

(10Base2) of the IEEE 802.3 standard state that a station must

 

 

 

 

 

detect a collision, in the receive mode, if three or more stations

 

 

 

 

 

are transmitting simultaneously. A repeater port must detect a

 

 

 

 

 

collision when two or more stations are transmitting

 

 

 

 

 

simultaneously. Thus, a probe placed on a repeater port could

 

 

 

 

 

record more collisions than a probe connected to a station on the

 

 

 

 

 

same segment.

 

 

 

 

 

Probe location plays a much smaller role when considering

 

 

 

 

 

10BaseT. Section 14.2.1.4 (10BASE-T) of the IEEE 802.3

 

 

 

 

 

standard defines a collision as the simultaneous presence of

 

 

 

 

 

signals on the DO and RD circuits (transmitting and receiving at

 

 

 

 

 

the same time). A 10BaseT station can only detect collisions

 

 

 

 

 

when it is transmitting. Thus, probes placed on a station and a

 

 

 

 

 

repeater, should report the same number of collisions.

 

 

 

 

 

An RMON probe inside a repeater should report collisions

 

 

 

 

 

between the repeater and one or more other hosts (transmit

 

 

 

 

 

collisions as defined by IEEE 802.3k) plus receiver collisions

 

 

 

 

 

observed on any coax segments to which the repeater is

 

 

 

 

 

connected.

 

 

 

 

 

 

 

 

etherStatsDropEvents

The total number of events in which packets were dropped by the

 

 

 

 

 

probe due to lack of resources. This number is not necessarily the

 

 

 

 

 

number of packets dropped; it is just the number of times this

 

 

 

 

 

condition has been detected.

 

 

 

 

 

 

 

 

etherStatsJabbers

Total number of octets of data (including bad packets) received

 

 

 

 

 

on the network

 

 

 

 

 

 

 

 

etherStatsMulticastPkts

The total number of good packets received that were directed to

 

 

 

 

 

a multicast address. This number does not include packets

 

 

 

 

 

directed to the broadcast.

 

 

 

 

 

 

 

 

etherStatsOversizePkts

The total number of packets received that were longer than

 

 

 

 

 

1518 octets (excluding framing bits, but including FCS octets)

 

 

 

 

 

and were otherwise well formed.

 

 

 

 

 

 

 

 

etherStatsUndersizePkts

Number of packets received with a length less than 64 octets

 

 

 

 

 

 

 

 

etherStatsFragments

Total number of packets that are not an integral number of octets

 

 

 

 

 

or have a bad FCS, and that are less than 64 octets long

 

 

 

 

 

 

 

 

etherStatsPkts64Octets

Total number of packets received (including error packets) that

 

 

 

 

 

were 64 octets in length

 

 

 

 

 

 

 

 

etherStatsPkts65to127Octets

Total number of packets received (including error packets) that

 

 

 

 

 

were 65 to 172 octets in length

 

 

 

 

 

 

 

 

etherStatsPkts128to255Octets

Total number of packets received (including error packets) that

 

 

 

 

 

were 128 to 255 octets in length

 

 

 

 

 

 

 

 

etherStatsPkts256to511Octets

Total number of packets received (including error packets) that

 

 

 

 

 

were 256 to 511 octets in length

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cisco ONS 15454 Procedure Guide, R7.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

November 2007

 

 

 

22-37

 

 

 

 

 

 

Page 36 Page 38
Image 37
Page 36 Page 38
Contents 22-1 DLP-A507 View OC-N PM ParametersCard View 22-2Click the Provisioning Ether Ports tabs DLP-A509 Provision CE-1000-4 Ethernet PortsClick the Performance Ether Ports Statistics tabs 22-322-4 DLP-A510 Provision a DS-3 Circuit Source and Destination22-5 DLP-A512 Change Node Access and PM Clearing Privilege22-6 DLP-A513 Provision CE-100T-8 Ethernet Ports22-7 Click the Performance POS Ports Statistics tabs DLP-A514 Provision CE-100T-8 and CE-1000-4 POS Ports22-8 Click the History Shelf tabs DLP-A517 View Alarm or Event History22-9 Alarm Profile Editor tabs Figure DLP-A518 Create a New or Cloned Alarm Severity Profile22-10 22-11 Node View Alarm Profile Editor22-12 Store Profiles Dialog Box 22-13Click the Provisioning Alarm Profiles Alarm Behavior tabs DLP-A519 Apply Alarm Profiles to Ports22-14 22-15 DLP-A520 Delete Alarm Severity ProfilesSelect Node/Profile Combination For Delete Dialog Box 22-1622-17 Alarm Filter Dialog Box General Tab22-18 Alarm Filter Dialog Box Conditions Tab22-19 DLP-A522 Suppress Alarm Reporting22-20 DLP-A523 Discontinue Alarm Suppression22-21 DLP-A524 Download an Alarm Severity ProfileOr Sonet Thresholds subtab Click OK22-22 22-23 Parameter Description Options22-24 IS-NR22-25 22-26 DLP-A527 Change the OC-N Card ALS Maintenance Settings22-27 Cisco ONS 15454 Reference ManualDLP-A529 Delete Ethernet Rmon Alarm Thresholds DLP-A528 Change the Default Network View Background Map22-28 22-29 DLP-A530 Install the Tie-Down Bar22-30 DLP-A531 Print CTC DataSelecting CTC Data For Print 22-3122-32 DLP-A532 Export CTC Data22-33 22-34 DLP-A533 Create Ethernet Rmon Alarm Thresholds22-35 Variable Definition22-36 22-37 22-38 22-39 22-40 DLP-A534 Provision OSI Routing ModeDLP-A535 Provision or Modify Tarp Operating Parameters Node view, click the Provisioning OSI Tarp Config tabs22-41 22-42 Click Add Static Entry Node view, click the Provisioning OSI Tarp Static TDC tabs22-43 Click Delete Static Entry DLP-A538 Add a Tarp Manual Adjacency Table Entry22-44 22-45 DLP-A539 Provision OSI RoutersDLP-A540 Provision Additional Manual Area Addresses DLP-A541 Enable the OSI Subnet on the LAN Interface22-46 22-47 22-48 DLP-A542 Create an IP-Over-CLNS TunnelDLP-A543 Remove a Tarp Manual Adjacency Table Entry DLP-A544 Change the OSI Routing Mode22-49 22-50 DLP-A546 Edit the OSI Subnetwork Point of Attachment DLP-A545 Edit the OSI Router ConfigurationNode view, click the Provisioning OSI Routers Subnet tabs 22-5122-52 DLP-A547 Edit an IP-Over-CLNS Tunnel22-53 DLP-A548 Delete an IP-Over-CLNS Tunnel22-54 DLP-A549 View IS-IS Routing Information BaseDLP-A550 View ES-IS Routing Information Base Node view, click the Maintenance OSI ES-IS RIB tabsDLP-A551 Manage the Tarp Data Cache 22-5522-56 DLP-A552 Adjust the Java Virtual Memory Heap Size22-57 22-58 22-59 22-60 22-61 22-62 22-63 22-64 Click the Maintenance Protection tabs22-65 22-66
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ONS 15454 specifications

Cisco Systems ONS 15454 is a versatile optical networking platform designed to enable service providers and enterprises to deploy and manage robust optical networks efficiently. The ONS 15454 serves as a cornerstone in the evolution of transport networks, featuring various technologies that meet the increasing demand for bandwidth and service quality.

One of the standout features of the ONS 15454 is its support for multiple service types, including TDM, Ethernet, and Wavelength Division Multiplexing (WDM). This capability allows service providers to maximize network resources while delivering a wide range of services, from traditional voice to high-speed data and video.

The ONS 15454 leverages Dense Wavelength Division Multiplexing (DWDM) technology, enabling the transmission of multiple data streams over a single optical fiber. This effectively expands the network's capacity without the need for additional infrastructure, a crucial benefit in today's ever-growing data landscape. The system supports a variety of transponder modules, allowing for flexible scaling and seamless upgrades as bandwidth requirements increase.

Scalability is another key characteristic of the ONS 15454. With its modular architecture, it accommodates a range of interfaces and line cards, making it easier to tailor deployments to specific customer needs. This modularity not only facilitates upgrades but also simplifies maintenance, minimizing downtime and operational costs.

The platform also features advanced management capabilities through Cisco's Optical Network Management system. This allows for real-time monitoring, provisioning, and troubleshooting, ensuring network reliability and performance. The intuitive interface and comprehensive reporting tools enable operators to gain insights into network operations, improving decision-making processes.

Furthermore, the ONS 15454 is built to support optical layer protection features, enhancing network resilience. Technologies such as Automatic Protection Switching (APS) and Optical Supervisory Channel (OSC) ensure that connectivity is maintained even in the event of a failure, crucial for mission-critical applications.

In conclusion, the Cisco ONS 15454 is a powerful optical networking solution that combines flexibility, scalability, and advanced management features. Its support for various services and technologies positions it as an essential asset for organizations looking to build a future-proof network capable of handling increasing data traffic while maintaining high service standards.
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