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Cisco StrataView Plus (SV+) collects statistics from IPX, IGX, BPX, FastPAD, DNS, and AXIS nodes using the Trivial File Transfer Protocol (TFTP).
Cisco SV+ issues a get request and the node responds by transmitting the statistics, in bulk, to a statistics collection file.
The statistic values received are used to update the Cisco SV+ database. Knowing the file name and format, you can parse the file to extract the value of each statistic type.
Each statistics collection file received from a node is uniquely identified in Cisco SV+ using the following filename format:
<Nodename.mmddyyhhmm>
where <Nodename> is the name of the node from which the statistics were collected and <mmddyyhhmm> is the date and time (GMT) the statistics were collected.
As indicated in the lists of statistic types in Chapter 3, "Database Definition", each type of statistic collected in an IPX/BPX/IGX/AXIS network is categorized under a major grouping known by an object type name and an object type number, and a minor grouping known as a sub-type. Within the sub-type, the statistic has a statistic type number.
For example, the statistic "ATM Cell Header HEC Errors" has an object type name of IPX-ATM, an object type of 2, a sub-type of 1, and a statistic type of 45. This combination of groups and type numbers uniquely identify a particular type of statistic.
The format of the statistics collection file consists of a fixed-length header and a sequential string of statistics identified by their object type, sub-type, and statistic type.
| Field Description | Field Size |
|---|---|
| Fixed Header Section | |
Domain number of node. | 1 byte |
Node number. | 1 byte |
Release number (example, 725a for release 7.2.5.A). | 4 bytes |
Node type. | 1 byte |
Status byte. | 2 bytes |
Peak flag (1 = enabled, 0 = disabled). | 1 byte |
Bucket interval. | 1 byte |
Number of Object types. (always FF [255] when node type is MGX 8220) | 1 byte |
| Data Dependent Section | |
Object type identifier. | 1 byte |
Number of Object sub-types. | 1 byte |
Object Sub-type identifier. | 1 byte |
Number of instances of key. | 2 bytes |
Key instance. | variable length* |
Stat type count. | 1 byte |
Stat type. | 1 byte |
Number of buckets. | 1 byte |
Stat value (reverse chronological order). | 5 bytes |
Peak value (1st bucket = file time stamp). | 5 bytes |
Repeat Stat type, Stat value, and Peak value for number of buckets. | n bytes |
Repeat Object Sub-type identifier section. | n bytes |
Repeat Object type section. | n bytes |
Checksum. | 4 bytes |
The Object Sub-types to Key List table depicts the keying information based upon Object Sub Type.
| Object Sub-type | Key Field 1 | Key Field 2 | Key Field 3 | Key Field 4 | Key Field 5 |
|---|---|---|---|---|---|
IPX Frame Relay Connection | Slot | Channel | DCLI, 2 bytes | N/A | N/A |
IPX Voice Connection | Slot | Channel | N/A | N/A | N/A |
IPX Data Connection | Slot | Channel | N/A | N/A | N/A |
ATM Connection ASI | Slot | Port | VPI, 2 bytes | VCI, 2 bytes | N/A |
ATF Connection BPX Local | Slot | Port | DCLI, 2 bytes | N/A | N/A |
ATF Connection IPX Local | Slot | Port | DCLI, 2 bytes | N/A | N/A |
FastPAD Connection (includes Voice, Switched Voice, and Data) | Slot | Port | FP slot | FP Port | N/A |
FastPad Frame Relay | Slot | Port | Slot | Port | DLCI 2 |
FastPad ATM | Slot | Port | VPI 2 | VCI 3 | N/A |
AXIS Frame Relay | Slot | R VCI 2 | N/A | N/A | N/A |
AXIS ATM | Slot | CN 2 | N/A | N/A | N/A |
AXIS CE | Slot | R VCI 2 | N/A | N/A | N/A |
ASI Line (Service interface) | Slot | Port | N/A | N/A | N/A |
AXIS T1 (Service interface) | Slot | Line | N/A | N/A | N/A |
AXIS ATM (Service interface) | Slot | Line | N/A | N/A | N/A |
IPX Service Interface (T1/E1) | Line | N/A | N/A | N/A | N/A |
IPX Trunk, includes ATM and AIT cards | Line | N/A | N/A | N/A | N/A |
BPX ATM Trunk | Line | N/A | N/A | N/A | N/A |
AXIS Narrowband Trunk | Slot | Line | N/A | N/A | N/A |
AXIS ATM Trunk | Slot | Line | N/A | N/A | N/A |
IPX Frame Relay Port | Slot | Port | N/A | N/A | N/A |
ASI Port | Slot | Port | N/A | N/A | N/A |
FTC Port (FastPAD) | Slot | Port | N/A | N/A | N/A |
AXIS Frame Relay Port | Slot | Logical Port | N/A | N/A | N/A |
AXIS ATM Port | Slot | Line | N/A | N/A | N/A |
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Posted: Mon Oct 4 19:53:24 PDT 1999
Copyright 1989-1999©Cisco Systems Inc.