Table Of Contents
Serial
Technology Description
Serial Links
Information Model Objects (IMOs)
Serial Interface
Vendor-Specific Inventory and IMOs
Service Alarms
Serial
This chapter describes the level of support that Cisco ANA provides for serial links, as follows:
•
Technology Description
•
Information Model Objects (IMOs)
•
Vendor-Specific Inventory and IMOs
•
Service Alarms
Please see Part 1: Cisco VNEs in this guide for information about which devices support the various technologies.
Technology Description
Serial Links
Serial links take many forms, from 2400 b/s dial-up modems to dedicated T3 leased lines. All share two common traits: they interconnect two hosts, and they transmit a single bit at a time in each direction. The stream of bits is assembled into bytes and then packets. The speed of a serial line is rated in bits per second (b/s). They are either synchronous (in which some kind of clocking signal is transmitted with the data) or asynchronous.
Note
Cisco ANA supports this technology only in conjunction with data link layer technologies, such as ATM or PoS.
Information Model Objects (IMOs)
This section describes the following IMO:
•
Serial Interface (IPhysicalLayer)
Serial Interface
Physical layer Serial Interface objects are bound by their Containing Termination Points attribute to a Port Connector object. Each object is accessed primarily by the data link layer object, such as the PPP Encapsulation interface, bound by its Contained Connection Termination Points attribute.
Table 33-1 Serial Interface (IPhysicalLayer)
Attribute Name
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Attribute Description
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Scheme
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Polling Interval
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All attributes are the same as Physical Layer (IPhysicalLayer)
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Vendor-Specific Inventory and IMOs
There are no vendor-specific inventory or IMOs for this technology.
Service Alarms
The following alarms are supported for this technology:
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Discard Packets, page 40-26
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Dropped Packets, page 40-27
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Link Down, page 40-42
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Port Down, page 40-51
•
Rx Utilization, page 40-53
•
Tx Utilization, page 40-57